Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus-1

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6: (9356 commits)
  [media] rc: update for bitop name changes
  fs: simplify iget & friends
  fs: pull inode->i_lock up out of writeback_single_inode
  fs: rename inode_lock to inode_hash_lock
  fs: move i_wb_list out from under inode_lock
  fs: move i_sb_list out from under inode_lock
  fs: remove inode_lock from iput_final and prune_icache
  fs: Lock the inode LRU list separately
  fs: factor inode disposal
  fs: protect inode->i_state with inode->i_lock
  lib, arch: add filter argument to show_mem and fix private implementations
  SLUB: Write to per cpu data when allocating it
  slub: Fix debugobjects with lockless fastpath
  autofs4: Do not potentially dereference NULL pointer returned by fget() in autofs_dev_ioctl_setpipefd()
  autofs4 - remove autofs4_lock
  autofs4 - fix d_manage() return on rcu-walk
  autofs4 - fix autofs4_expire_indirect() traversal
  autofs4 - fix dentry leak in autofs4_expire_direct()
  autofs4 - reinstate last used update on access
  vfs - check non-mountpoint dentry might block in __follow_mount_rcu()
  ...

NOTE!

This merge commit was created to fix compilation error. The block
tree was merged upstream and removed the 'elv_queue_empty()'
function which the new 'mtdswap' driver is using. So a simple
merge of the mtd tree with upstream does not compile. And the
mtd tree has already be published, so re-basing it is not an option.

To fix this unfortunate situation, I had to merge upstream into the
mtd-2.6.git tree without committing, put the fixup patch on top of
this, and then commit this. The result is that we do not have commits
which do not compile.

In other words, this merge commit "merges" 3 things: the MTD tree, the
upstream tree, and the fixup patch.

62 files changed, 4231 insertions, 1950 deletions

diff --git a/drivers/input/Kconfig b/drivers/input/Kconfig
index 1903c0f5b925..23e82e46656d 100644
--- a/drivers/input/Kconfig
+++ b/drivers/input/Kconfig
@@ -161,16 +161,6 @@ config INPUT_APMPOWER
 	  To compile this driver as a module, choose M here: the
 	  module will be called apm-power.
 
-config XEN_KBDDEV_FRONTEND
-	tristate "Xen virtual keyboard and mouse support"
-	depends on XEN_FBDEV_FRONTEND
-	default y
-	select XEN_XENBUS_FRONTEND
-	help
-	  This driver implements the front-end of the Xen virtual
-	  keyboard and mouse device driver.  It communicates with a back-end
-	  in another domain.
-
 comment "Input Device Drivers"
 
 source "drivers/input/keyboard/Kconfig"
diff --git a/drivers/input/Makefile b/drivers/input/Makefile
index 09614ce74961..0c789490e0b3 100644
--- a/drivers/input/Makefile
+++ b/drivers/input/Makefile
@@ -24,5 +24,3 @@ obj-$(CONFIG_INPUT_TOUCHSCREEN)	+= touchscreen/
 obj-$(CONFIG_INPUT_MISC)	+= misc/
 
 obj-$(CONFIG_INPUT_APMPOWER)	+= apm-power.o
-
-obj-$(CONFIG_XEN_KBDDEV_FRONTEND)	+= xen-kbdfront.o
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index c8471a2552e7..7f42d3a454d2 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -321,6 +321,9 @@ static ssize_t evdev_write(struct file *file, const char __user *buffer,
 	struct input_event event;
 	int retval;
 
+	if (count < input_event_size())
+		return -EINVAL;
+
 	retval = mutex_lock_interruptible(&evdev->mutex);
 	if (retval)
 		return retval;
@@ -330,17 +333,16 @@ static ssize_t evdev_write(struct file *file, const char __user *buffer,
 		goto out;
 	}
 
-	while (retval < count) {
-
+	do {
 		if (input_event_from_user(buffer + retval, &event)) {
 			retval = -EFAULT;
 			goto out;
 		}
+		retval += input_event_size();
 
 		input_inject_event(&evdev->handle,
 				   event.type, event.code, event.value);
-		retval += input_event_size();
-	}
+	} while (retval + input_event_size() <= count);
 
  out:
 	mutex_unlock(&evdev->mutex);
diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
index 23cf8fc933ec..5b8f59d6c3e8 100644
--- a/drivers/input/gameport/gameport.c
+++ b/drivers/input/gameport/gameport.c
@@ -360,7 +360,7 @@ static int gameport_queue_event(void *object, struct module *owner,
 	event->owner = owner;
 
 	list_add_tail(&event->node, &gameport_event_list);
-	schedule_work(&gameport_event_work);
+	queue_work(system_long_wq, &gameport_event_work);
 
 out:
 	spin_unlock_irqrestore(&gameport_event_lock, flags);
diff --git a/drivers/input/input-polldev.c b/drivers/input/input-polldev.c
index 0559e309bac9..3037842a60d8 100644
--- a/drivers/input/input-polldev.c
+++ b/drivers/input/input-polldev.c
@@ -192,7 +192,7 @@ static struct attribute_group input_polldev_attribute_group = {
 };
 
 /**
- * input_allocate_polled_device - allocated memory polled device
+ * input_allocate_polled_device - allocate memory for polled device
  *
  * The function allocates memory for a polled device and also
  * for an input device associated with this polled device.
@@ -239,7 +239,7 @@ EXPORT_SYMBOL(input_free_polled_device);
  * with input layer. The device should be allocated with call to
  * input_allocate_polled_device(). Callers should also set up poll()
  * method and set up capabilities (id, name, phys, bits) of the
- * corresponing input_dev structure.
+ * corresponding input_dev structure.
  */
 int input_register_polled_device(struct input_polled_dev *dev)
 {
diff --git a/drivers/input/input.c b/drivers/input/input.c
index 7985114beac7..d6e8bd8a851c 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -75,7 +75,6 @@ static int input_defuzz_abs_event(int value, int old_val, int fuzz)
  * dev->event_lock held and interrupts disabled.
  */
 static void input_pass_event(struct input_dev *dev,
-			     struct input_handler *src_handler,
 			     unsigned int type, unsigned int code, int value)
 {
 	struct input_handler *handler;
@@ -94,15 +93,6 @@ static void input_pass_event(struct input_dev *dev,
 				continue;
 
 			handler = handle->handler;
-
-			/*
-			 * If this is the handler that injected this
-			 * particular event we want to skip it to avoid
-			 * filters firing again and again.
-			 */
-			if (handler == src_handler)
-				continue;
-
 			if (!handler->filter) {
 				if (filtered)
 					break;
@@ -132,7 +122,7 @@ static void input_repeat_key(unsigned long data)
 	if (test_bit(dev->repeat_key, dev->key) &&
 	    is_event_supported(dev->repeat_key, dev->keybit, KEY_MAX)) {
 
-		input_pass_event(dev, NULL, EV_KEY, dev->repeat_key, 2);
+		input_pass_event(dev, EV_KEY, dev->repeat_key, 2);
 
 		if (dev->sync) {
 			/*
@@ -141,7 +131,7 @@ static void input_repeat_key(unsigned long data)
 			 * Otherwise assume that the driver will send
 			 * SYN_REPORT once it's done.
 			 */
-			input_pass_event(dev, NULL, EV_SYN, SYN_REPORT, 1);
+			input_pass_event(dev, EV_SYN, SYN_REPORT, 1);
 		}
 
 		if (dev->rep[REP_PERIOD])
@@ -174,7 +164,6 @@ static void input_stop_autorepeat(struct input_dev *dev)
 #define INPUT_PASS_TO_ALL	(INPUT_PASS_TO_HANDLERS | INPUT_PASS_TO_DEVICE)
 
 static int input_handle_abs_event(struct input_dev *dev,
-				  struct input_handler *src_handler,
 				  unsigned int code, int *pval)
 {
 	bool is_mt_event;
@@ -218,15 +207,13 @@ static int input_handle_abs_event(struct input_dev *dev,
 	/* Flush pending "slot" event */
 	if (is_mt_event && dev->slot != input_abs_get_val(dev, ABS_MT_SLOT)) {
 		input_abs_set_val(dev, ABS_MT_SLOT, dev->slot);
-		input_pass_event(dev, src_handler,
-				 EV_ABS, ABS_MT_SLOT, dev->slot);
+		input_pass_event(dev, EV_ABS, ABS_MT_SLOT, dev->slot);
 	}
 
 	return INPUT_PASS_TO_HANDLERS;
 }
 
 static void input_handle_event(struct input_dev *dev,
-			       struct input_handler *src_handler,
 			       unsigned int type, unsigned int code, int value)
 {
 	int disposition = INPUT_IGNORE_EVENT;
@@ -279,8 +266,7 @@ static void input_handle_event(struct input_dev *dev,
 
 	case EV_ABS:
 		if (is_event_supported(code, dev->absbit, ABS_MAX))
-			disposition = input_handle_abs_event(dev, src_handler,
-							     code, &value);
+			disposition = input_handle_abs_event(dev, code, &value);
 
 		break;
 
@@ -338,7 +324,7 @@ static void input_handle_event(struct input_dev *dev,
 		dev->event(dev, type, code, value);
 
 	if (disposition & INPUT_PASS_TO_HANDLERS)
-		input_pass_event(dev, src_handler, type, code, value);
+		input_pass_event(dev, type, code, value);
 }
 
 /**
@@ -367,7 +353,7 @@ void input_event(struct input_dev *dev,
 
 		spin_lock_irqsave(&dev->event_lock, flags);
 		add_input_randomness(type, code, value);
-		input_handle_event(dev, NULL, type, code, value);
+		input_handle_event(dev, type, code, value);
 		spin_unlock_irqrestore(&dev->event_lock, flags);
 	}
 }
@@ -397,8 +383,7 @@ void input_inject_event(struct input_handle *handle,
 		rcu_read_lock();
 		grab = rcu_dereference(dev->grab);
 		if (!grab || grab == handle)
-			input_handle_event(dev, handle->handler,
-					   type, code, value);
+			input_handle_event(dev, type, code, value);
 		rcu_read_unlock();
 
 		spin_unlock_irqrestore(&dev->event_lock, flags);
@@ -611,10 +596,10 @@ static void input_dev_release_keys(struct input_dev *dev)
 		for (code = 0; code <= KEY_MAX; code++) {
 			if (is_event_supported(code, dev->keybit, KEY_MAX) &&
 			    __test_and_clear_bit(code, dev->key)) {
-				input_pass_event(dev, NULL, EV_KEY, code, 0);
+				input_pass_event(dev, EV_KEY, code, 0);
 			}
 		}
-		input_pass_event(dev, NULL, EV_SYN, SYN_REPORT, 1);
+		input_pass_event(dev, EV_SYN, SYN_REPORT, 1);
 	}
 }
 
@@ -806,22 +791,9 @@ int input_get_keycode(struct input_dev *dev, struct input_keymap_entry *ke)
 	int retval;
 
 	spin_lock_irqsave(&dev->event_lock, flags);
-
-	if (dev->getkeycode) {
-		/*
-		 * Support for legacy drivers, that don't implement the new
-		 * ioctls
-		 */
-		u32 scancode = ke->index;
-
-		memcpy(ke->scancode, &scancode, sizeof(scancode));
-		ke->len = sizeof(scancode);
-		retval = dev->getkeycode(dev, scancode, &ke->keycode);
-	} else {
-		retval = dev->getkeycode_new(dev, ke);
-	}
-
+	retval = dev->getkeycode(dev, ke);
 	spin_unlock_irqrestore(&dev->event_lock, flags);
+
 	return retval;
 }
 EXPORT_SYMBOL(input_get_keycode);
@@ -846,35 +818,7 @@ int input_set_keycode(struct input_dev *dev,
 
 	spin_lock_irqsave(&dev->event_lock, flags);
 
-	if (dev->setkeycode) {
-		/*
-		 * Support for legacy drivers, that don't implement the new
-		 * ioctls
-		 */
-		unsigned int scancode;
-
-		retval = input_scancode_to_scalar(ke, &scancode);
-		if (retval)
-			goto out;
-
-		/*
-		 * We need to know the old scancode, in order to generate a
-		 * keyup effect, if the set operation happens successfully
-		 */
-		if (!dev->getkeycode) {
-			retval = -EINVAL;
-			goto out;
-		}
-
-		retval = dev->getkeycode(dev, scancode, &old_keycode);
-		if (retval)
-			goto out;
-
-		retval = dev->setkeycode(dev, scancode, ke->keycode);
-	} else {
-		retval = dev->setkeycode_new(dev, ke, &old_keycode);
-	}
-
+	retval = dev->setkeycode(dev, ke, &old_keycode);
 	if (retval)
 		goto out;
 
@@ -889,9 +833,9 @@ int input_set_keycode(struct input_dev *dev,
 	    !is_event_supported(old_keycode, dev->keybit, KEY_MAX) &&
 	    __test_and_clear_bit(old_keycode, dev->key)) {
 
-		input_pass_event(dev, NULL, EV_KEY, old_keycode, 0);
+		input_pass_event(dev, EV_KEY, old_keycode, 0);
 		if (dev->sync)
-			input_pass_event(dev, NULL, EV_SYN, SYN_REPORT, 1);
+			input_pass_event(dev, EV_SYN, SYN_REPORT, 1);
 	}
 
  out:
@@ -1861,11 +1805,11 @@ int input_register_device(struct input_dev *dev)
 		dev->rep[REP_PERIOD] = 33;
 	}
 
-	if (!dev->getkeycode && !dev->getkeycode_new)
-		dev->getkeycode_new = input_default_getkeycode;
+	if (!dev->getkeycode)
+		dev->getkeycode = input_default_getkeycode;
 
-	if (!dev->setkeycode && !dev->setkeycode_new)
-		dev->setkeycode_new = input_default_setkeycode;
+	if (!dev->setkeycode)
+		dev->setkeycode = input_default_setkeycode;
 
 	dev_set_name(&dev->dev, "input%ld",
 		     (unsigned long) atomic_inc_return(&input_no) - 1);
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 417507348bab..b16bed038f72 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -112,6 +112,16 @@ config KEYBOARD_ATKBD_RDI_KEYCODES
 	  right-hand column will be interpreted as the key shown in the
 	  left-hand column.
 
+config KEYBOARD_QT1070
+       tristate "Atmel AT42QT1070 Touch Sensor Chip"
+       depends on I2C
+       help
+         Say Y here if you want to use Atmel AT42QT1070 QTouch
+         Sensor chip as input device.
+
+         To compile this driver as a module, choose M here:
+         the module will be called qt1070
+
 config KEYBOARD_QT2160
 	tristate "Atmel AT42QT2160 Touch Sensor Chip"
 	depends on I2C && EXPERIMENTAL
@@ -343,6 +353,16 @@ config KEYBOARD_NOMADIK
 	  To compile this driver as a module, choose M here: the
 	  module will be called nmk-ske-keypad.
 
+config KEYBOARD_TEGRA
+	tristate "NVIDIA Tegra internal matrix keyboard controller support"
+	depends on ARCH_TEGRA
+	help
+	  Say Y here if you want to use a matrix keyboard connected directly
+	  to the internal keyboard controller on Tegra SoCs.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called tegra-kbc.
+
 config KEYBOARD_OPENCORES
 	tristate "OpenCores Keyboard Controller"
 	help
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index 4e5571b72cda..878e6c20deb0 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -34,6 +34,7 @@ obj-$(CONFIG_KEYBOARD_OMAP4)		+= omap4-keypad.o
 obj-$(CONFIG_KEYBOARD_OPENCORES)	+= opencores-kbd.o
 obj-$(CONFIG_KEYBOARD_PXA27x)		+= pxa27x_keypad.o
 obj-$(CONFIG_KEYBOARD_PXA930_ROTARY)	+= pxa930_rotary.o
+obj-$(CONFIG_KEYBOARD_QT1070)           += qt1070.o
 obj-$(CONFIG_KEYBOARD_QT2160)		+= qt2160.o
 obj-$(CONFIG_KEYBOARD_SAMSUNG)		+= samsung-keypad.o
 obj-$(CONFIG_KEYBOARD_SH_KEYSC)		+= sh_keysc.o
@@ -42,6 +43,7 @@ obj-$(CONFIG_KEYBOARD_STMPE)		+= stmpe-keypad.o
 obj-$(CONFIG_KEYBOARD_STOWAWAY)		+= stowaway.o
 obj-$(CONFIG_KEYBOARD_SUNKBD)		+= sunkbd.o
 obj-$(CONFIG_KEYBOARD_TC3589X)		+= tc3589x-keypad.o
+obj-$(CONFIG_KEYBOARD_TEGRA)		+= tegra-kbc.o
 obj-$(CONFIG_KEYBOARD_TNETV107X)	+= tnetv107x-keypad.o
 obj-$(CONFIG_KEYBOARD_TWL4030)		+= twl4030_keypad.o
 obj-$(CONFIG_KEYBOARD_XTKBD)		+= xtkbd.o
diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index 6069abe31e42..eb3006361ee4 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -322,7 +322,7 @@ static void gpio_keys_report_event(struct gpio_button_data *bdata)
 	struct gpio_keys_button *button = bdata->button;
 	struct input_dev *input = bdata->input;
 	unsigned int type = button->type ?: EV_KEY;
-	int state = (gpio_get_value(button->gpio) ? 1 : 0) ^ button->active_low;
+	int state = (gpio_get_value_cansleep(button->gpio) ? 1 : 0) ^ button->active_low;
 
 	input_event(input, type, button->code, !!state);
 	input_sync(input);
@@ -410,8 +410,8 @@ static int __devinit gpio_keys_setup_key(struct platform_device *pdev,
 	if (!button->can_disable)
 		irqflags |= IRQF_SHARED;
 
-	error = request_irq(irq, gpio_keys_isr, irqflags, desc, bdata);
-	if (error) {
+	error = request_any_context_irq(irq, gpio_keys_isr, irqflags, desc, bdata);
+	if (error < 0) {
 		dev_err(dev, "Unable to claim irq %d; error %d\n",
 			irq, error);
 		goto fail3;
diff --git a/drivers/input/keyboard/lm8323.c b/drivers/input/keyboard/lm8323.c
index f7c2a166576b..b732870ecc89 100644
--- a/drivers/input/keyboard/lm8323.c
+++ b/drivers/input/keyboard/lm8323.c
@@ -30,6 +30,7 @@
 #include <linux/delay.h>
 #include <linux/input.h>
 #include <linux/leds.h>
+#include <linux/pm.h>
 #include <linux/i2c/lm8323.h>
 #include <linux/slab.h>
 
@@ -802,8 +803,9 @@ static int __devexit lm8323_remove(struct i2c_client *client)
  * We don't need to explicitly suspend the chip, as it already switches off
  * when there's no activity.
  */
-static int lm8323_suspend(struct i2c_client *client, pm_message_t mesg)
+static int lm8323_suspend(struct device *dev)
 {
+	struct i2c_client *client = to_i2c_client(dev);
 	struct lm8323_chip *lm = i2c_get_clientdata(client);
 	int i;
 
@@ -821,8 +823,9 @@ static int lm8323_suspend(struct i2c_client *client, pm_message_t mesg)
 	return 0;
 }
 
-static int lm8323_resume(struct i2c_client *client)
+static int lm8323_resume(struct device *dev)
 {
+	struct i2c_client *client = to_i2c_client(dev);
 	struct lm8323_chip *lm = i2c_get_clientdata(client);
 	int i;
 
@@ -839,11 +842,10 @@ static int lm8323_resume(struct i2c_client *client)
 
 	return 0;
 }
-#else
-#define lm8323_suspend	NULL
-#define lm8323_resume	NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(lm8323_pm_ops, lm8323_suspend, lm8323_resume);
+
 static const struct i2c_device_id lm8323_id[] = {
 	{ "lm8323", 0 },
 	{ }
@@ -852,11 +854,10 @@ static const struct i2c_device_id lm8323_id[] = {
 static struct i2c_driver lm8323_i2c_driver = {
 	.driver = {
 		.name	= "lm8323",
+		.pm	= &lm8323_pm_ops,
 	},
 	.probe		= lm8323_probe,
 	.remove		= __devexit_p(lm8323_remove),
-	.suspend	= lm8323_suspend,
-	.resume		= lm8323_resume,
 	.id_table	= lm8323_id,
 };
 MODULE_DEVICE_TABLE(i2c, lm8323_id);
diff --git a/drivers/input/keyboard/max7359_keypad.c b/drivers/input/keyboard/max7359_keypad.c
index 9091ff5ea808..5afe35ad24d3 100644
--- a/drivers/input/keyboard/max7359_keypad.c
+++ b/drivers/input/keyboard/max7359_keypad.c
@@ -17,6 +17,7 @@
 #include <linux/i2c.h>
 #include <linux/slab.h>
 #include <linux/interrupt.h>
+#include <linux/pm.h>
 #include <linux/input.h>
 #include <linux/input/matrix_keypad.h>
 
@@ -271,8 +272,10 @@ static int __devexit max7359_remove(struct i2c_client *client)
 }
 
 #ifdef CONFIG_PM
-static int max7359_suspend(struct i2c_client *client, pm_message_t mesg)
+static int max7359_suspend(struct device *dev)
 {
+	struct i2c_client *client = to_i2c_client(dev);
+
 	max7359_fall_deepsleep(client);
 
 	if (device_may_wakeup(&client->dev))
@@ -281,8 +284,10 @@ static int max7359_suspend(struct i2c_client *client, pm_message_t mesg)
 	return 0;
 }
 
-static int max7359_resume(struct i2c_client *client)
+static int max7359_resume(struct device *dev)
 {
+	struct i2c_client *client = to_i2c_client(dev);
+
 	if (device_may_wakeup(&client->dev))
 		disable_irq_wake(client->irq);
 
@@ -291,11 +296,10 @@ static int max7359_resume(struct i2c_client *client)
 
 	return 0;
 }
-#else
-#define max7359_suspend	NULL
-#define max7359_resume	NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(max7359_pm, max7359_suspend, max7359_resume);
+
 static const struct i2c_device_id max7359_ids[] = {
 	{ "max7359", 0 },
 	{ }
@@ -305,11 +309,10 @@ MODULE_DEVICE_TABLE(i2c, max7359_ids);
 static struct i2c_driver max7359_i2c_driver = {
 	.driver = {
 		.name = "max7359",
+		.pm   = &max7359_pm,
 	},
 	.probe		= max7359_probe,
 	.remove		= __devexit_p(max7359_remove),
-	.suspend	= max7359_suspend,
-	.resume		= max7359_resume,
 	.id_table	= max7359_ids,
 };
 
diff --git a/drivers/input/keyboard/mcs_touchkey.c b/drivers/input/keyboard/mcs_touchkey.c
index 63b849d7e90b..af1aab324a4c 100644
--- a/drivers/input/keyboard/mcs_touchkey.c
+++ b/drivers/input/keyboard/mcs_touchkey.c
@@ -1,5 +1,5 @@
 /*
- * mcs_touchkey.c - Touchkey driver for MELFAS MCS5000/5080 controller
+ * Touchkey driver for MELFAS MCS5000/5080 controller
  *
  * Copyright (C) 2010 Samsung Electronics Co.Ltd
  * Author: HeungJun Kim <riverful.kim@samsung.com>
@@ -19,6 +19,7 @@
 #include <linux/input.h>
 #include <linux/irq.h>
 #include <linux/slab.h>
+#include <linux/pm.h>
 
 /* MCS5000 Touchkey */
 #define MCS5000_TOUCHKEY_STATUS		0x04
@@ -45,6 +46,8 @@ struct mcs_touchkey_chip {
 };
 
 struct mcs_touchkey_data {
+	void (*poweron)(bool);
+
 	struct i2c_client *client;
 	struct input_dev *input_dev;
 	struct mcs_touchkey_chip chip;
@@ -169,6 +172,11 @@ static int __devinit mcs_touchkey_probe(struct i2c_client *client,
 	if (pdata->cfg_pin)
 		pdata->cfg_pin();
 
+	if (pdata->poweron) {
+		data->poweron = pdata->poweron;
+		data->poweron(true);
+	}
+
 	error = request_threaded_irq(client->irq, NULL, mcs_touchkey_interrupt,
 			IRQF_TRIGGER_FALLING, client->dev.driver->name, data);
 	if (error) {
@@ -196,12 +204,57 @@ static int __devexit mcs_touchkey_remove(struct i2c_client *client)
 	struct mcs_touchkey_data *data = i2c_get_clientdata(client);
 
 	free_irq(client->irq, data);
+	if (data->poweron)
+		data->poweron(false);
 	input_unregister_device(data->input_dev);
 	kfree(data);
 
 	return 0;
 }
 
+static void mcs_touchkey_shutdown(struct i2c_client *client)
+{
+	struct mcs_touchkey_data *data = i2c_get_clientdata(client);
+
+	if (data->poweron)
+		data->poweron(false);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int mcs_touchkey_suspend(struct device *dev)
+{
+	struct mcs_touchkey_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+
+	/* Disable the work */
+	disable_irq(client->irq);
+
+	/* Finally turn off the power */
+	if (data->poweron)
+		data->poweron(false);
+
+	return 0;
+}
+
+static int mcs_touchkey_resume(struct device *dev)
+{
+	struct mcs_touchkey_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+
+	/* Enable the device first */
+	if (data->poweron)
+		data->poweron(true);
+
+	/* Enable irq again */
+	enable_irq(client->irq);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(mcs_touchkey_pm_ops,
+			 mcs_touchkey_suspend, mcs_touchkey_resume);
+
 static const struct i2c_device_id mcs_touchkey_id[] = {
 	{ "mcs5000_touchkey", MCS5000_TOUCHKEY },
 	{ "mcs5080_touchkey", MCS5080_TOUCHKEY },
@@ -213,9 +266,11 @@ static struct i2c_driver mcs_touchkey_driver = {
 	.driver = {
 		.name	= "mcs_touchkey",
 		.owner	= THIS_MODULE,
+		.pm	= &mcs_touchkey_pm_ops,
 	},
 	.probe		= mcs_touchkey_probe,
 	.remove		= __devexit_p(mcs_touchkey_remove),
+	.shutdown       = mcs_touchkey_shutdown,
 	.id_table	= mcs_touchkey_id,
 };
 
diff --git a/drivers/input/keyboard/omap4-keypad.c b/drivers/input/keyboard/omap4-keypad.c
index 45bd0977d006..c51a3c4a7feb 100644
--- a/drivers/input/keyboard/omap4-keypad.c
+++ b/drivers/input/keyboard/omap4-keypad.c
@@ -29,6 +29,7 @@
 #include <linux/io.h>
 #include <linux/input.h>
 #include <linux/slab.h>
+#include <linux/pm_runtime.h>
 
 #include <plat/omap4-keypad.h>
 
@@ -80,20 +81,6 @@ struct omap4_keypad {
 	unsigned short keymap[];
 };
 
-static void __devinit omap4_keypad_config(struct omap4_keypad *keypad_data)
-{
-	__raw_writel(OMAP4_VAL_FUNCTIONALCFG,
-			keypad_data->base + OMAP4_KBD_CTRL);
-	__raw_writel(OMAP4_VAL_DEBOUNCINGTIME,
-			keypad_data->base + OMAP4_KBD_DEBOUNCINGTIME);
-	__raw_writel(OMAP4_VAL_IRQDISABLE,
-			keypad_data->base + OMAP4_KBD_IRQSTATUS);
-	__raw_writel(OMAP4_DEF_IRQENABLE_EVENTEN | OMAP4_DEF_IRQENABLE_LONGKEY,
-			keypad_data->base + OMAP4_KBD_IRQENABLE);
-	__raw_writel(OMAP4_DEF_WUP_EVENT_ENA | OMAP4_DEF_WUP_LONG_KEY_ENA,
-			keypad_data->base + OMAP4_KBD_WAKEUPENABLE);
-}
-
 /* Interrupt handler */
 static irqreturn_t omap4_keypad_interrupt(int irq, void *dev_id)
 {
@@ -144,6 +131,49 @@ static irqreturn_t omap4_keypad_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
+static int omap4_keypad_open(struct input_dev *input)
+{
+	struct omap4_keypad *keypad_data = input_get_drvdata(input);
+
+	pm_runtime_get_sync(input->dev.parent);
+
+	disable_irq(keypad_data->irq);
+
+	__raw_writel(OMAP4_VAL_FUNCTIONALCFG,
+			keypad_data->base + OMAP4_KBD_CTRL);
+	__raw_writel(OMAP4_VAL_DEBOUNCINGTIME,
+			keypad_data->base + OMAP4_KBD_DEBOUNCINGTIME);
+	__raw_writel(OMAP4_VAL_IRQDISABLE,
+			keypad_data->base + OMAP4_KBD_IRQSTATUS);
+	__raw_writel(OMAP4_DEF_IRQENABLE_EVENTEN | OMAP4_DEF_IRQENABLE_LONGKEY,
+			keypad_data->base + OMAP4_KBD_IRQENABLE);
+	__raw_writel(OMAP4_DEF_WUP_EVENT_ENA | OMAP4_DEF_WUP_LONG_KEY_ENA,
+			keypad_data->base + OMAP4_KBD_WAKEUPENABLE);
+
+	enable_irq(keypad_data->irq);
+
+	return 0;
+}
+
+static void omap4_keypad_close(struct input_dev *input)
+{
+	struct omap4_keypad *keypad_data = input_get_drvdata(input);
+
+	disable_irq(keypad_data->irq);
+
+	/* Disable interrupts */
+	__raw_writel(OMAP4_VAL_IRQDISABLE,
+		     keypad_data->base + OMAP4_KBD_IRQENABLE);
+
+	/* clear pending interrupts */
+	__raw_writel(__raw_readl(keypad_data->base + OMAP4_KBD_IRQSTATUS),
+			keypad_data->base + OMAP4_KBD_IRQSTATUS);
+
+	enable_irq(keypad_data->irq);
+
+	pm_runtime_put_sync(input->dev.parent);
+}
+
 static int __devinit omap4_keypad_probe(struct platform_device *pdev)
 {
 	const struct omap4_keypad_platform_data *pdata;
@@ -225,6 +255,9 @@ static int __devinit omap4_keypad_probe(struct platform_device *pdev)
 	input_dev->id.product = 0x0001;
 	input_dev->id.version = 0x0001;
 
+	input_dev->open = omap4_keypad_open;
+	input_dev->close = omap4_keypad_close;
+
 	input_dev->keycode	= keypad_data->keymap;
 	input_dev->keycodesize	= sizeof(keypad_data->keymap[0]);
 	input_dev->keycodemax	= max_keys;
@@ -239,8 +272,6 @@ static int __devinit omap4_keypad_probe(struct platform_device *pdev)
 	matrix_keypad_build_keymap(pdata->keymap_data, row_shift,
 			input_dev->keycode, input_dev->keybit);
 
-	omap4_keypad_config(keypad_data);
-
 	error = request_irq(keypad_data->irq, omap4_keypad_interrupt,
 			     IRQF_TRIGGER_RISING,
 			     "omap4-keypad", keypad_data);
@@ -249,17 +280,19 @@ static int __devinit omap4_keypad_probe(struct platform_device *pdev)
 		goto err_free_input;
 	}
 
+	pm_runtime_enable(&pdev->dev);
+
 	error = input_register_device(keypad_data->input);
 	if (error < 0) {
 		dev_err(&pdev->dev, "failed to register input device\n");
-		goto err_free_irq;
+		goto err_pm_disable;
 	}
 
-
 	platform_set_drvdata(pdev, keypad_data);
 	return 0;
 
-err_free_irq:
+err_pm_disable:
+	pm_runtime_disable(&pdev->dev);
 	free_irq(keypad_data->irq, keypad_data);
 err_free_input:
 	input_free_device(input_dev);
@@ -278,6 +311,9 @@ static int __devexit omap4_keypad_remove(struct platform_device *pdev)
 	struct resource *res;
 
 	free_irq(keypad_data->irq, keypad_data);
+
+	pm_runtime_disable(&pdev->dev);
+
 	input_unregister_device(keypad_data->input);
 
 	iounmap(keypad_data->base);
diff --git a/drivers/input/keyboard/qt1070.c b/drivers/input/keyboard/qt1070.c
new file mode 100644
index 000000000000..fba8404c7297
--- /dev/null
+++ b/drivers/input/keyboard/qt1070.c
@@ -0,0 +1,276 @@
+/*
+ *  Atmel AT42QT1070 QTouch Sensor Controller
+ *
+ *  Copyright (C) 2011 Atmel
+ *
+ *  Authors: Bo Shen <voice.shen@atmel.com>
+ *
+ *  Base on AT42QT2160 driver by:
+ *  Raphael Derosso Pereira <raphaelpereira@gmail.com>
+ *  Copyright (C) 2009
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/jiffies.h>
+#include <linux/delay.h>
+
+/* Address for each register */
+#define CHIP_ID            0x00
+#define QT1070_CHIP_ID     0x2E
+
+#define FW_VERSION         0x01
+#define QT1070_FW_VERSION  0x15
+
+#define DET_STATUS         0x02
+
+#define KEY_STATUS         0x03
+
+/* Calibrate */
+#define CALIBRATE_CMD      0x38
+#define QT1070_CAL_TIME    200
+
+/* Reset */
+#define RESET              0x39
+#define QT1070_RESET_TIME  255
+
+/* AT42QT1070 support up to 7 keys */
+static const unsigned short qt1070_key2code[] = {
+	KEY_0, KEY_1, KEY_2, KEY_3,
+	KEY_4, KEY_5, KEY_6,
+};
+
+struct qt1070_data {
+	struct i2c_client *client;
+	struct input_dev *input;
+	unsigned int irq;
+	unsigned short keycodes[ARRAY_SIZE(qt1070_key2code)];
+	u8 last_keys;
+};
+
+static int qt1070_read(struct i2c_client *client, u8 reg)
+{
+	int ret;
+
+	ret = i2c_smbus_read_byte_data(client, reg);
+	if (ret < 0)
+		dev_err(&client->dev,
+			"can not read register, returned %d\n", ret);
+
+	return ret;
+}
+
+static int qt1070_write(struct i2c_client *client, u8 reg, u8 data)
+{
+	int ret;
+
+	ret = i2c_smbus_write_byte_data(client, reg, data);
+	if (ret < 0)
+		dev_err(&client->dev,
+			"can not write register, returned %d\n", ret);
+
+	return ret;
+}
+
+static bool __devinit qt1070_identify(struct i2c_client *client)
+{
+	int id, ver;
+
+	/* Read Chip ID */
+	id = qt1070_read(client, CHIP_ID);
+	if (id != QT1070_CHIP_ID) {
+		dev_err(&client->dev, "ID %d not supported\n", id);
+		return false;
+	}
+
+	/* Read firmware version */
+	ver = qt1070_read(client, FW_VERSION);
+	if (ver < 0) {
+		dev_err(&client->dev, "could not read the firmware version\n");
+		return false;
+	}
+
+	dev_info(&client->dev, "AT42QT1070 firmware version %x\n", ver);
+
+	return true;
+}
+
+static irqreturn_t qt1070_interrupt(int irq, void *dev_id)
+{
+	struct qt1070_data *data = dev_id;
+	struct i2c_client *client = data->client;
+	struct input_dev *input = data->input;
+	int i;
+	u8 new_keys, keyval, mask = 0x01;
+
+	/* Read the detected status register, thus clearing interrupt */
+	qt1070_read(client, DET_STATUS);
+
+	/* Read which key changed */
+	new_keys = qt1070_read(client, KEY_STATUS);
+
+	for (i = 0; i < ARRAY_SIZE(qt1070_key2code); i++) {
+		keyval = new_keys & mask;
+		if ((data->last_keys & mask) != keyval)
+			input_report_key(input, data->keycodes[i], keyval);
+		mask <<= 1;
+	}
+	input_sync(input);
+
+	data->last_keys = new_keys;
+	return IRQ_HANDLED;
+}
+
+static int __devinit qt1070_probe(struct i2c_client *client,
+				const struct i2c_device_id *id)
+{
+	struct qt1070_data *data;
+	struct input_dev *input;
+	int i;
+	int err;
+
+	err = i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE);
+	if (!err) {
+		dev_err(&client->dev, "%s adapter not supported\n",
+			dev_driver_string(&client->adapter->dev));
+		return -ENODEV;
+	}
+
+	if (!client->irq) {
+		dev_err(&client->dev, "please assign the irq to this device\n");
+		return -EINVAL;
+	}
+
+	/* Identify the qt1070 chip */
+	if (!qt1070_identify(client))
+		return -ENODEV;
+
+	data = kzalloc(sizeof(struct qt1070_data), GFP_KERNEL);
+	input = input_allocate_device();
+	if (!data || !input) {
+		dev_err(&client->dev, "insufficient memory\n");
+		err = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	data->client = client;
+	data->input = input;
+	data->irq = client->irq;
+
+	input->name = "AT42QT1070 QTouch Sensor";
+	input->dev.parent = &client->dev;
+	input->id.bustype = BUS_I2C;
+
+	/* Add the keycode */
+	input->keycode = data->keycodes;
+	input->keycodesize = sizeof(data->keycodes[0]);
+	input->keycodemax = ARRAY_SIZE(qt1070_key2code);
+
+	__set_bit(EV_KEY, input->evbit);
+
+	for (i = 0; i < ARRAY_SIZE(qt1070_key2code); i++) {
+		data->keycodes[i] = qt1070_key2code[i];
+		__set_bit(qt1070_key2code[i], input->keybit);
+	}
+
+	/* Calibrate device */
+	qt1070_write(client, CALIBRATE_CMD, 1);
+	msleep(QT1070_CAL_TIME);
+
+	/* Soft reset */
+	qt1070_write(client, RESET, 1);
+	msleep(QT1070_RESET_TIME);
+
+	err = request_threaded_irq(client->irq, NULL, qt1070_interrupt,
+		IRQF_TRIGGER_NONE, client->dev.driver->name, data);
+	if (err) {
+		dev_err(&client->dev, "fail to request irq\n");
+		goto err_free_mem;
+	}
+
+	/* Register the input device */
+	err = input_register_device(data->input);
+	if (err) {
+		dev_err(&client->dev, "Failed to register input device\n");
+		goto err_free_irq;
+	}
+
+	i2c_set_clientdata(client, data);
+
+	/* Read to clear the chang line */
+	qt1070_read(client, DET_STATUS);
+
+	return 0;
+
+err_free_irq:
+	free_irq(client->irq, data);
+err_free_mem:
+	input_free_device(input);
+	kfree(data);
+	return err;
+}
+
+static int __devexit qt1070_remove(struct i2c_client *client)
+{
+	struct qt1070_data *data = i2c_get_clientdata(client);
+
+	/* Release IRQ */
+	free_irq(client->irq, data);
+
+	input_unregister_device(data->input);
+	kfree(data);
+
+	i2c_set_clientdata(client, NULL);
+
+	return 0;
+}
+
+static const struct i2c_device_id qt1070_id[] = {
+	{ "qt1070", 0 },
+	{ },
+};
+
+static struct i2c_driver qt1070_driver = {
+	.driver	= {
+		.name	= "qt1070",
+		.owner	= THIS_MODULE,
+	},
+	.id_table	= qt1070_id,
+	.probe		= qt1070_probe,
+	.remove		= __devexit_p(qt1070_remove),
+};
+
+static int __init qt1070_init(void)
+{
+	return i2c_add_driver(&qt1070_driver);
+}
+module_init(qt1070_init);
+
+static void __exit qt1070_exit(void)
+{
+	i2c_del_driver(&qt1070_driver);
+}
+module_exit(qt1070_exit);
+
+MODULE_AUTHOR("Bo Shen <voice.shen@atmel.com>");
+MODULE_DESCRIPTION("Driver for AT42QT1070 QTouch sensor");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/keyboard/tc3589x-keypad.c b/drivers/input/keyboard/tc3589x-keypad.c
index dbbe761778d2..99122f59e988 100644
--- a/drivers/input/keyboard/tc3589x-keypad.c
+++ b/drivers/input/keyboard/tc3589x-keypad.c
@@ -402,7 +402,7 @@ static int __devexit tc3589x_keypad_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int tc3589x_keypad_suspend(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -439,19 +439,19 @@ static int tc3589x_keypad_resume(struct device *dev)
 
 	return 0;
 }
-
-static const SIMPLE_DEV_PM_OPS(tc3589x_keypad_dev_pm_ops,
-			       tc3589x_keypad_suspend, tc3589x_keypad_resume);
 #endif
 
+static SIMPLE_DEV_PM_OPS(tc3589x_keypad_dev_pm_ops,
+			 tc3589x_keypad_suspend, tc3589x_keypad_resume);
+
 static struct platform_driver tc3589x_keypad_driver = {
-	.driver.name  = "tc3589x-keypad",
-	.driver.owner = THIS_MODULE,
-#ifdef CONFIG_PM
-	.driver.pm = &tc3589x_keypad_dev_pm_ops,
-#endif
-	.probe = tc3589x_keypad_probe,
-	.remove = __devexit_p(tc3589x_keypad_remove),
+	.driver	= {
+		.name	= "tc3589x-keypad",
+		.owner	= THIS_MODULE,
+		.pm	= &tc3589x_keypad_dev_pm_ops,
+	},
+	.probe	= tc3589x_keypad_probe,
+	.remove	= __devexit_p(tc3589x_keypad_remove),
 };
 
 static int __init tc3589x_keypad_init(void)
diff --git a/drivers/input/keyboard/tca6416-keypad.c b/drivers/input/keyboard/tca6416-keypad.c
index 800fbccf1f0f..3afea3f89718 100644
--- a/drivers/input/keyboard/tca6416-keypad.c
+++ b/drivers/input/keyboard/tca6416-keypad.c
@@ -297,6 +297,7 @@ static int __devinit tca6416_keypad_probe(struct i2c_client *client,
 	}
 
 	i2c_set_clientdata(client, chip);
+	device_init_wakeup(&client->dev, 1);
 
 	return 0;
 
@@ -326,10 +327,37 @@ static int __devexit tca6416_keypad_remove(struct i2c_client *client)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int tca6416_keypad_suspend(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct tca6416_keypad_chip *chip = i2c_get_clientdata(client);
+
+	if (device_may_wakeup(dev))
+		enable_irq_wake(chip->irqnum);
+
+	return 0;
+}
+
+static int tca6416_keypad_resume(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct tca6416_keypad_chip *chip = i2c_get_clientdata(client);
+
+	if (device_may_wakeup(dev))
+		disable_irq_wake(chip->irqnum);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(tca6416_keypad_dev_pm_ops,
+			 tca6416_keypad_suspend, tca6416_keypad_resume);
 
 static struct i2c_driver tca6416_keypad_driver = {
 	.driver = {
 		.name	= "tca6416-keypad",
+		.pm	= &tca6416_keypad_dev_pm_ops,
 	},
 	.probe		= tca6416_keypad_probe,
 	.remove		= __devexit_p(tca6416_keypad_remove),
diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c
new file mode 100644
index 000000000000..99ce9032d08c
--- /dev/null
+++ b/drivers/input/keyboard/tegra-kbc.c
@@ -0,0 +1,783 @@
+/*
+ * Keyboard class input driver for the NVIDIA Tegra SoC internal matrix
+ * keyboard controller
+ *
+ * Copyright (c) 2009-2011, NVIDIA Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/clk.h>
+#include <linux/slab.h>
+#include <mach/clk.h>
+#include <mach/kbc.h>
+
+#define KBC_MAX_DEBOUNCE_CNT	0x3ffu
+
+/* KBC row scan time and delay for beginning the row scan. */
+#define KBC_ROW_SCAN_TIME	16
+#define KBC_ROW_SCAN_DLY	5
+
+/* KBC uses a 32KHz clock so a cycle = 1/32Khz */
+#define KBC_CYCLE_USEC	32
+
+/* KBC Registers */
+
+/* KBC Control Register */
+#define KBC_CONTROL_0	0x0
+#define KBC_FIFO_TH_CNT_SHIFT(cnt)	(cnt << 14)
+#define KBC_DEBOUNCE_CNT_SHIFT(cnt)	(cnt << 4)
+#define KBC_CONTROL_FIFO_CNT_INT_EN	(1 << 3)
+#define KBC_CONTROL_KBC_EN		(1 << 0)
+
+/* KBC Interrupt Register */
+#define KBC_INT_0	0x4
+#define KBC_INT_FIFO_CNT_INT_STATUS	(1 << 2)
+
+#define KBC_ROW_CFG0_0	0x8
+#define KBC_COL_CFG0_0	0x18
+#define KBC_INIT_DLY_0	0x28
+#define KBC_RPT_DLY_0	0x2c
+#define KBC_KP_ENT0_0	0x30
+#define KBC_KP_ENT1_0	0x34
+#define KBC_ROW0_MASK_0	0x38
+
+#define KBC_ROW_SHIFT	3
+
+struct tegra_kbc {
+	void __iomem *mmio;
+	struct input_dev *idev;
+	unsigned int irq;
+	unsigned int wake_enable_rows;
+	unsigned int wake_enable_cols;
+	spinlock_t lock;
+	unsigned int repoll_dly;
+	unsigned long cp_dly_jiffies;
+	bool use_fn_map;
+	const struct tegra_kbc_platform_data *pdata;
+	unsigned short keycode[KBC_MAX_KEY * 2];
+	unsigned short current_keys[KBC_MAX_KPENT];
+	unsigned int num_pressed_keys;
+	struct timer_list timer;
+	struct clk *clk;
+};
+
+static const u32 tegra_kbc_default_keymap[] = {
+	KEY(0, 2, KEY_W),
+	KEY(0, 3, KEY_S),
+	KEY(0, 4, KEY_A),
+	KEY(0, 5, KEY_Z),
+	KEY(0, 7, KEY_FN),
+
+	KEY(1, 7, KEY_LEFTMETA),
+
+	KEY(2, 6, KEY_RIGHTALT),
+	KEY(2, 7, KEY_LEFTALT),
+
+	KEY(3, 0, KEY_5),
+	KEY(3, 1, KEY_4),
+	KEY(3, 2, KEY_R),
+	KEY(3, 3, KEY_E),
+	KEY(3, 4, KEY_F),
+	KEY(3, 5, KEY_D),
+	KEY(3, 6, KEY_X),
+
+	KEY(4, 0, KEY_7),
+	KEY(4, 1, KEY_6),
+	KEY(4, 2, KEY_T),
+	KEY(4, 3, KEY_H),
+	KEY(4, 4, KEY_G),
+	KEY(4, 5, KEY_V),
+	KEY(4, 6, KEY_C),
+	KEY(4, 7, KEY_SPACE),
+
+	KEY(5, 0, KEY_9),
+	KEY(5, 1, KEY_8),
+	KEY(5, 2, KEY_U),
+	KEY(5, 3, KEY_Y),
+	KEY(5, 4, KEY_J),
+	KEY(5, 5, KEY_N),
+	KEY(5, 6, KEY_B),
+	KEY(5, 7, KEY_BACKSLASH),
+
+	KEY(6, 0, KEY_MINUS),
+	KEY(6, 1, KEY_0),
+	KEY(6, 2, KEY_O),
+	KEY(6, 3, KEY_I),
+	KEY(6, 4, KEY_L),
+	KEY(6, 5, KEY_K),
+	KEY(6, 6, KEY_COMMA),
+	KEY(6, 7, KEY_M),
+
+	KEY(7, 1, KEY_EQUAL),
+	KEY(7, 2, KEY_RIGHTBRACE),
+	KEY(7, 3, KEY_ENTER),
+	KEY(7, 7, KEY_MENU),
+
+	KEY(8, 4, KEY_RIGHTSHIFT),
+	KEY(8, 5, KEY_LEFTSHIFT),
+
+	KEY(9, 5, KEY_RIGHTCTRL),
+	KEY(9, 7, KEY_LEFTCTRL),
+
+	KEY(11, 0, KEY_LEFTBRACE),
+	KEY(11, 1, KEY_P),
+	KEY(11, 2, KEY_APOSTROPHE),
+	KEY(11, 3, KEY_SEMICOLON),
+	KEY(11, 4, KEY_SLASH),
+	KEY(11, 5, KEY_DOT),
+
+	KEY(12, 0, KEY_F10),
+	KEY(12, 1, KEY_F9),
+	KEY(12, 2, KEY_BACKSPACE),
+	KEY(12, 3, KEY_3),
+	KEY(12, 4, KEY_2),
+	KEY(12, 5, KEY_UP),
+	KEY(12, 6, KEY_PRINT),
+	KEY(12, 7, KEY_PAUSE),
+
+	KEY(13, 0, KEY_INSERT),
+	KEY(13, 1, KEY_DELETE),
+	KEY(13, 3, KEY_PAGEUP),
+	KEY(13, 4, KEY_PAGEDOWN),
+	KEY(13, 5, KEY_RIGHT),
+	KEY(13, 6, KEY_DOWN),
+	KEY(13, 7, KEY_LEFT),
+
+	KEY(14, 0, KEY_F11),
+	KEY(14, 1, KEY_F12),
+	KEY(14, 2, KEY_F8),
+	KEY(14, 3, KEY_Q),
+	KEY(14, 4, KEY_F4),
+	KEY(14, 5, KEY_F3),
+	KEY(14, 6, KEY_1),
+	KEY(14, 7, KEY_F7),
+
+	KEY(15, 0, KEY_ESC),
+	KEY(15, 1, KEY_GRAVE),
+	KEY(15, 2, KEY_F5),
+	KEY(15, 3, KEY_TAB),
+	KEY(15, 4, KEY_F1),
+	KEY(15, 5, KEY_F2),
+	KEY(15, 6, KEY_CAPSLOCK),
+	KEY(15, 7, KEY_F6),
+
+	/* Software Handled Function Keys */
+	KEY(20, 0, KEY_KP7),
+
+	KEY(21, 0, KEY_KP9),
+	KEY(21, 1, KEY_KP8),
+	KEY(21, 2, KEY_KP4),
+	KEY(21, 4, KEY_KP1),
+
+	KEY(22, 1, KEY_KPSLASH),
+	KEY(22, 2, KEY_KP6),
+	KEY(22, 3, KEY_KP5),
+	KEY(22, 4, KEY_KP3),
+	KEY(22, 5, KEY_KP2),
+	KEY(22, 7, KEY_KP0),
+
+	KEY(27, 1, KEY_KPASTERISK),
+	KEY(27, 3, KEY_KPMINUS),
+	KEY(27, 4, KEY_KPPLUS),
+	KEY(27, 5, KEY_KPDOT),
+
+	KEY(28, 5, KEY_VOLUMEUP),
+
+	KEY(29, 3, KEY_HOME),
+	KEY(29, 4, KEY_END),
+	KEY(29, 5, KEY_BRIGHTNESSDOWN),
+	KEY(29, 6, KEY_VOLUMEDOWN),
+	KEY(29, 7, KEY_BRIGHTNESSUP),
+
+	KEY(30, 0, KEY_NUMLOCK),
+	KEY(30, 1, KEY_SCROLLLOCK),
+	KEY(30, 2, KEY_MUTE),
+
+	KEY(31, 4, KEY_HELP),
+};
+
+static const struct matrix_keymap_data tegra_kbc_default_keymap_data = {
+	.keymap		= tegra_kbc_default_keymap,
+	.keymap_size	= ARRAY_SIZE(tegra_kbc_default_keymap),
+};
+
+static void tegra_kbc_report_released_keys(struct input_dev *input,
+					   unsigned short old_keycodes[],
+					   unsigned int old_num_keys,
+					   unsigned short new_keycodes[],
+					   unsigned int new_num_keys)
+{
+	unsigned int i, j;
+
+	for (i = 0; i < old_num_keys; i++) {
+		for (j = 0; j < new_num_keys; j++)
+			if (old_keycodes[i] == new_keycodes[j])
+				break;
+
+		if (j == new_num_keys)
+			input_report_key(input, old_keycodes[i], 0);
+	}
+}
+
+static void tegra_kbc_report_pressed_keys(struct input_dev *input,
+					  unsigned char scancodes[],
+					  unsigned short keycodes[],
+					  unsigned int num_pressed_keys)
+{
+	unsigned int i;
+
+	for (i = 0; i < num_pressed_keys; i++) {
+		input_event(input, EV_MSC, MSC_SCAN, scancodes[i]);
+		input_report_key(input, keycodes[i], 1);
+	}
+}
+
+static void tegra_kbc_report_keys(struct tegra_kbc *kbc)
+{
+	unsigned char scancodes[KBC_MAX_KPENT];
+	unsigned short keycodes[KBC_MAX_KPENT];
+	u32 val = 0;
+	unsigned int i;
+	unsigned int num_down = 0;
+	unsigned long flags;
+	bool fn_keypress = false;
+
+	spin_lock_irqsave(&kbc->lock, flags);
+	for (i = 0; i < KBC_MAX_KPENT; i++) {
+		if ((i % 4) == 0)
+			val = readl(kbc->mmio + KBC_KP_ENT0_0 + i);
+
+		if (val & 0x80) {
+			unsigned int col = val & 0x07;
+			unsigned int row = (val >> 3) & 0x0f;
+			unsigned char scancode =
+				MATRIX_SCAN_CODE(row, col, KBC_ROW_SHIFT);
+
+			scancodes[num_down] = scancode;
+			keycodes[num_down] = kbc->keycode[scancode];
+			/* If driver uses Fn map, do not report the Fn key. */
+			if ((keycodes[num_down] == KEY_FN) && kbc->use_fn_map)
+				fn_keypress = true;
+			else
+				num_down++;
+		}
+
+		val >>= 8;
+	}
+
+	/*
+	 * If the platform uses Fn keymaps, translate keys on a Fn keypress.
+	 * Function keycodes are KBC_MAX_KEY apart from the plain keycodes.
+	 */
+	if (fn_keypress) {
+		for (i = 0; i < num_down; i++) {
+			scancodes[i] += KBC_MAX_KEY;
+			keycodes[i] = kbc->keycode[scancodes[i]];
+		}
+	}
+
+	spin_unlock_irqrestore(&kbc->lock, flags);
+
+	tegra_kbc_report_released_keys(kbc->idev,
+				       kbc->current_keys, kbc->num_pressed_keys,
+				       keycodes, num_down);
+	tegra_kbc_report_pressed_keys(kbc->idev, scancodes, keycodes, num_down);
+	input_sync(kbc->idev);
+
+	memcpy(kbc->current_keys, keycodes, sizeof(kbc->current_keys));
+	kbc->num_pressed_keys = num_down;
+}
+
+static void tegra_kbc_keypress_timer(unsigned long data)
+{
+	struct tegra_kbc *kbc = (struct tegra_kbc *)data;
+	unsigned long flags;
+	u32 val;
+	unsigned int i;
+
+	val = (readl(kbc->mmio + KBC_INT_0) >> 4) & 0xf;
+	if (val) {
+		unsigned long dly;
+
+		tegra_kbc_report_keys(kbc);
+
+		/*
+		 * If more than one keys are pressed we need not wait
+		 * for the repoll delay.
+		 */
+		dly = (val == 1) ? kbc->repoll_dly : 1;
+		mod_timer(&kbc->timer, jiffies + msecs_to_jiffies(dly));
+	} else {
+		/* Release any pressed keys and exit the polling loop */
+		for (i = 0; i < kbc->num_pressed_keys; i++)
+			input_report_key(kbc->idev, kbc->current_keys[i], 0);
+		input_sync(kbc->idev);
+
+		kbc->num_pressed_keys = 0;
+
+		/* All keys are released so enable the keypress interrupt */
+		spin_lock_irqsave(&kbc->lock, flags);
+		val = readl(kbc->mmio + KBC_CONTROL_0);
+		val |= KBC_CONTROL_FIFO_CNT_INT_EN;
+		writel(val, kbc->mmio + KBC_CONTROL_0);
+		spin_unlock_irqrestore(&kbc->lock, flags);
+	}
+}
+
+static irqreturn_t tegra_kbc_isr(int irq, void *args)
+{
+	struct tegra_kbc *kbc = args;
+	u32 val, ctl;
+
+	/*
+	 * Until all keys are released, defer further processing to
+	 * the polling loop in tegra_kbc_keypress_timer
+	 */
+	ctl = readl(kbc->mmio + KBC_CONTROL_0);
+	ctl &= ~KBC_CONTROL_FIFO_CNT_INT_EN;
+	writel(ctl, kbc->mmio + KBC_CONTROL_0);
+
+	/*
+	 * Quickly bail out & reenable interrupts if the fifo threshold
+	 * count interrupt wasn't the interrupt source
+	 */
+	val = readl(kbc->mmio + KBC_INT_0);
+	writel(val, kbc->mmio + KBC_INT_0);
+
+	if (val & KBC_INT_FIFO_CNT_INT_STATUS) {
+		/*
+		 * Schedule timer to run when hardware is in continuous
+		 * polling mode.
+		 */
+		mod_timer(&kbc->timer, jiffies + kbc->cp_dly_jiffies);
+	} else {
+		ctl |= KBC_CONTROL_FIFO_CNT_INT_EN;
+		writel(ctl, kbc->mmio + KBC_CONTROL_0);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static void tegra_kbc_setup_wakekeys(struct tegra_kbc *kbc, bool filter)
+{
+	const struct tegra_kbc_platform_data *pdata = kbc->pdata;
+	int i;
+	unsigned int rst_val;
+
+	BUG_ON(pdata->wake_cnt > KBC_MAX_KEY);
+	rst_val = (filter && pdata->wake_cnt) ? ~0 : 0;
+
+	for (i = 0; i < KBC_MAX_ROW; i++)
+		writel(rst_val, kbc->mmio + KBC_ROW0_MASK_0 + i * 4);
+
+	if (filter) {
+		for (i = 0; i < pdata->wake_cnt; i++) {
+			u32 val, addr;
+			addr = pdata->wake_cfg[i].row * 4 + KBC_ROW0_MASK_0;
+			val = readl(kbc->mmio + addr);
+			val &= ~(1 << pdata->wake_cfg[i].col);
+			writel(val, kbc->mmio + addr);
+		}
+	}
+}
+
+static void tegra_kbc_config_pins(struct tegra_kbc *kbc)
+{
+	const struct tegra_kbc_platform_data *pdata = kbc->pdata;
+	int i;
+
+	for (i = 0; i < KBC_MAX_GPIO; i++) {
+		u32 r_shft = 5 * (i % 6);
+		u32 c_shft = 4 * (i % 8);
+		u32 r_mask = 0x1f << r_shft;
+		u32 c_mask = 0x0f << c_shft;
+		u32 r_offs = (i / 6) * 4 + KBC_ROW_CFG0_0;
+		u32 c_offs = (i / 8) * 4 + KBC_COL_CFG0_0;
+		u32 row_cfg = readl(kbc->mmio + r_offs);
+		u32 col_cfg = readl(kbc->mmio + c_offs);
+
+		row_cfg &= ~r_mask;
+		col_cfg &= ~c_mask;
+
+		if (pdata->pin_cfg[i].is_row)
+			row_cfg |= ((pdata->pin_cfg[i].num << 1) | 1) << r_shft;
+		else
+			col_cfg |= ((pdata->pin_cfg[i].num << 1) | 1) << c_shft;
+
+		writel(row_cfg, kbc->mmio + r_offs);
+		writel(col_cfg, kbc->mmio + c_offs);
+	}
+}
+
+static int tegra_kbc_start(struct tegra_kbc *kbc)
+{
+	const struct tegra_kbc_platform_data *pdata = kbc->pdata;
+	unsigned long flags;
+	unsigned int debounce_cnt;
+	u32 val = 0;
+
+	clk_enable(kbc->clk);
+
+	/* Reset the KBC controller to clear all previous status.*/
+	tegra_periph_reset_assert(kbc->clk);
+	udelay(100);
+	tegra_periph_reset_deassert(kbc->clk);
+	udelay(100);
+
+	tegra_kbc_config_pins(kbc);
+	tegra_kbc_setup_wakekeys(kbc, false);
+
+	writel(pdata->repeat_cnt, kbc->mmio + KBC_RPT_DLY_0);
+
+	/* Keyboard debounce count is maximum of 12 bits. */
+	debounce_cnt = min(pdata->debounce_cnt, KBC_MAX_DEBOUNCE_CNT);
+	val = KBC_DEBOUNCE_CNT_SHIFT(debounce_cnt);
+	val |= KBC_FIFO_TH_CNT_SHIFT(1); /* set fifo interrupt threshold to 1 */
+	val |= KBC_CONTROL_FIFO_CNT_INT_EN;  /* interrupt on FIFO threshold */
+	val |= KBC_CONTROL_KBC_EN;     /* enable */
+	writel(val, kbc->mmio + KBC_CONTROL_0);
+
+	/*
+	 * Compute the delay(ns) from interrupt mode to continuous polling
+	 * mode so the timer routine is scheduled appropriately.
+	 */
+	val = readl(kbc->mmio + KBC_INIT_DLY_0);
+	kbc->cp_dly_jiffies = usecs_to_jiffies((val & 0xfffff) * 32);
+
+	kbc->num_pressed_keys = 0;
+
+	/*
+	 * Atomically clear out any remaining entries in the key FIFO
+	 * and enable keyboard interrupts.
+	 */
+	spin_lock_irqsave(&kbc->lock, flags);
+	while (1) {
+		val = readl(kbc->mmio + KBC_INT_0);
+		val >>= 4;
+		if (!val)
+			break;
+
+		val = readl(kbc->mmio + KBC_KP_ENT0_0);
+		val = readl(kbc->mmio + KBC_KP_ENT1_0);
+	}
+	writel(0x7, kbc->mmio + KBC_INT_0);
+	spin_unlock_irqrestore(&kbc->lock, flags);
+
+	enable_irq(kbc->irq);
+
+	return 0;
+}
+
+static void tegra_kbc_stop(struct tegra_kbc *kbc)
+{
+	unsigned long flags;
+	u32 val;
+
+	spin_lock_irqsave(&kbc->lock, flags);
+	val = readl(kbc->mmio + KBC_CONTROL_0);
+	val &= ~1;
+	writel(val, kbc->mmio + KBC_CONTROL_0);
+	spin_unlock_irqrestore(&kbc->lock, flags);
+
+	disable_irq(kbc->irq);
+	del_timer_sync(&kbc->timer);
+
+	clk_disable(kbc->clk);
+}
+
+static int tegra_kbc_open(struct input_dev *dev)
+{
+	struct tegra_kbc *kbc = input_get_drvdata(dev);
+
+	return tegra_kbc_start(kbc);
+}
+
+static void tegra_kbc_close(struct input_dev *dev)
+{
+	struct tegra_kbc *kbc = input_get_drvdata(dev);
+
+	return tegra_kbc_stop(kbc);
+}
+
+static bool __devinit
+tegra_kbc_check_pin_cfg(const struct tegra_kbc_platform_data *pdata,
+			struct device *dev, unsigned int *num_rows)
+{
+	int i;
+
+	*num_rows = 0;
+
+	for (i = 0; i < KBC_MAX_GPIO; i++) {
+		const struct tegra_kbc_pin_cfg *pin_cfg = &pdata->pin_cfg[i];
+
+		if (pin_cfg->is_row) {
+			if (pin_cfg->num >= KBC_MAX_ROW) {
+				dev_err(dev,
+					"pin_cfg[%d]: invalid row number %d\n",
+					i, pin_cfg->num);
+				return false;
+			}
+			(*num_rows)++;
+		} else {
+			if (pin_cfg->num >= KBC_MAX_COL) {
+				dev_err(dev,
+					"pin_cfg[%d]: invalid column number %d\n",
+					i, pin_cfg->num);
+				return false;
+			}
+		}
+	}
+
+	return true;
+}
+
+static int __devinit tegra_kbc_probe(struct platform_device *pdev)
+{
+	const struct tegra_kbc_platform_data *pdata = pdev->dev.platform_data;
+	const struct matrix_keymap_data *keymap_data;
+	struct tegra_kbc *kbc;
+	struct input_dev *input_dev;
+	struct resource *res;
+	int irq;
+	int err;
+	int i;
+	int num_rows = 0;
+	unsigned int debounce_cnt;
+	unsigned int scan_time_rows;
+
+	if (!pdata)
+		return -EINVAL;
+
+	if (!tegra_kbc_check_pin_cfg(pdata, &pdev->dev, &num_rows))
+		return -EINVAL;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "failed to get I/O memory\n");
+		return -ENXIO;
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		dev_err(&pdev->dev, "failed to get keyboard IRQ\n");
+		return -ENXIO;
+	}
+
+	kbc = kzalloc(sizeof(*kbc), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!kbc || !input_dev) {
+		err = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	kbc->pdata = pdata;
+	kbc->idev = input_dev;
+	kbc->irq = irq;
+	spin_lock_init(&kbc->lock);
+	setup_timer(&kbc->timer, tegra_kbc_keypress_timer, (unsigned long)kbc);
+
+	res = request_mem_region(res->start, resource_size(res), pdev->name);
+	if (!res) {
+		dev_err(&pdev->dev, "failed to request I/O memory\n");
+		err = -EBUSY;
+		goto err_free_mem;
+	}
+
+	kbc->mmio = ioremap(res->start, resource_size(res));
+	if (!kbc->mmio) {
+		dev_err(&pdev->dev, "failed to remap I/O memory\n");
+		err = -ENXIO;
+		goto err_free_mem_region;
+	}
+
+	kbc->clk = clk_get(&pdev->dev, NULL);
+	if (IS_ERR(kbc->clk)) {
+		dev_err(&pdev->dev, "failed to get keyboard clock\n");
+		err = PTR_ERR(kbc->clk);
+		goto err_iounmap;
+	}
+
+	kbc->wake_enable_rows = 0;
+	kbc->wake_enable_cols = 0;
+	for (i = 0; i < pdata->wake_cnt; i++) {
+		kbc->wake_enable_rows |= (1 << pdata->wake_cfg[i].row);
+		kbc->wake_enable_cols |= (1 << pdata->wake_cfg[i].col);
+	}
+
+	/*
+	 * The time delay between two consecutive reads of the FIFO is
+	 * the sum of the repeat time and the time taken for scanning
+	 * the rows. There is an additional delay before the row scanning
+	 * starts. The repoll delay is computed in milliseconds.
+	 */
+	debounce_cnt = min(pdata->debounce_cnt, KBC_MAX_DEBOUNCE_CNT);
+	scan_time_rows = (KBC_ROW_SCAN_TIME + debounce_cnt) * num_rows;
+	kbc->repoll_dly = KBC_ROW_SCAN_DLY + scan_time_rows + pdata->repeat_cnt;
+	kbc->repoll_dly = ((kbc->repoll_dly * KBC_CYCLE_USEC) + 999) / 1000;
+
+	input_dev->name = pdev->name;
+	input_dev->id.bustype = BUS_HOST;
+	input_dev->dev.parent = &pdev->dev;
+	input_dev->open = tegra_kbc_open;
+	input_dev->close = tegra_kbc_close;
+
+	input_set_drvdata(input_dev, kbc);
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY);
+	input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+
+	input_dev->keycode = kbc->keycode;
+	input_dev->keycodesize = sizeof(kbc->keycode[0]);
+	input_dev->keycodemax = KBC_MAX_KEY;
+	if (pdata->use_fn_map)
+		input_dev->keycodemax *= 2;
+
+	kbc->use_fn_map = pdata->use_fn_map;
+	keymap_data = pdata->keymap_data ?: &tegra_kbc_default_keymap_data;
+	matrix_keypad_build_keymap(keymap_data, KBC_ROW_SHIFT,
+				   input_dev->keycode, input_dev->keybit);
+
+	err = request_irq(kbc->irq, tegra_kbc_isr, IRQF_TRIGGER_HIGH,
+			  pdev->name, kbc);
+	if (err) {
+		dev_err(&pdev->dev, "failed to request keyboard IRQ\n");
+		goto err_put_clk;
+	}
+
+	disable_irq(kbc->irq);
+
+	err = input_register_device(kbc->idev);
+	if (err) {
+		dev_err(&pdev->dev, "failed to register input device\n");
+		goto err_free_irq;
+	}
+
+	platform_set_drvdata(pdev, kbc);
+	device_init_wakeup(&pdev->dev, pdata->wakeup);
+
+	return 0;
+
+err_free_irq:
+	free_irq(kbc->irq, pdev);
+err_put_clk:
+	clk_put(kbc->clk);
+err_iounmap:
+	iounmap(kbc->mmio);
+err_free_mem_region:
+	release_mem_region(res->start, resource_size(res));
+err_free_mem:
+	input_free_device(kbc->idev);
+	kfree(kbc);
+
+	return err;
+}
+
+static int __devexit tegra_kbc_remove(struct platform_device *pdev)
+{
+	struct tegra_kbc *kbc = platform_get_drvdata(pdev);
+	struct resource *res;
+
+	free_irq(kbc->irq, pdev);
+	clk_put(kbc->clk);
+
+	input_unregister_device(kbc->idev);
+	iounmap(kbc->mmio);
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	release_mem_region(res->start, resource_size(res));
+
+	kfree(kbc);
+
+	platform_set_drvdata(pdev, NULL);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int tegra_kbc_suspend(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct tegra_kbc *kbc = platform_get_drvdata(pdev);
+
+	if (device_may_wakeup(&pdev->dev)) {
+		tegra_kbc_setup_wakekeys(kbc, true);
+		enable_irq_wake(kbc->irq);
+		/* Forcefully clear the interrupt status */
+		writel(0x7, kbc->mmio + KBC_INT_0);
+		msleep(30);
+	} else {
+		mutex_lock(&kbc->idev->mutex);
+		if (kbc->idev->users)
+			tegra_kbc_stop(kbc);
+		mutex_unlock(&kbc->idev->mutex);
+	}
+
+	return 0;
+}
+
+static int tegra_kbc_resume(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct tegra_kbc *kbc = platform_get_drvdata(pdev);
+	int err = 0;
+
+	if (device_may_wakeup(&pdev->dev)) {
+		disable_irq_wake(kbc->irq);
+		tegra_kbc_setup_wakekeys(kbc, false);
+	} else {
+		mutex_lock(&kbc->idev->mutex);
+		if (kbc->idev->users)
+			err = tegra_kbc_start(kbc);
+		mutex_unlock(&kbc->idev->mutex);
+	}
+
+	return err;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(tegra_kbc_pm_ops, tegra_kbc_suspend, tegra_kbc_resume);
+
+static struct platform_driver tegra_kbc_driver = {
+	.probe		= tegra_kbc_probe,
+	.remove		= __devexit_p(tegra_kbc_remove),
+	.driver	= {
+		.name	= "tegra-kbc",
+		.owner  = THIS_MODULE,
+		.pm	= &tegra_kbc_pm_ops,
+	},
+};
+
+static void __exit tegra_kbc_exit(void)
+{
+	platform_driver_unregister(&tegra_kbc_driver);
+}
+module_exit(tegra_kbc_exit);
+
+static int __init tegra_kbc_init(void)
+{
+	return platform_driver_register(&tegra_kbc_driver);
+}
+module_init(tegra_kbc_init);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Rakesh Iyer <riyer@nvidia.com>");
+MODULE_DESCRIPTION("Tegra matrix keyboard controller driver");
+MODULE_ALIAS("platform:tegra-kbc");
diff --git a/drivers/input/keyboard/tnetv107x-keypad.c b/drivers/input/keyboard/tnetv107x-keypad.c
index b4a81ebfab92..c8f097a15d89 100644
--- a/drivers/input/keyboard/tnetv107x-keypad.c
+++ b/drivers/input/keyboard/tnetv107x-keypad.c
@@ -14,6 +14,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/err.h>
 #include <linux/errno.h>
 #include <linux/input.h>
 #include <linux/platform_device.h>
@@ -219,9 +220,9 @@ static int __devinit keypad_probe(struct platform_device *pdev)
 	}
 
 	kp->clk = clk_get(dev, NULL);
-	if (!kp->clk) {
+	if (IS_ERR(kp->clk)) {
 		dev_err(dev, "cannot claim device clock\n");
-		error = -EINVAL;
+		error = PTR_ERR(kp->clk);
 		goto error_clk;
 	}
 
diff --git a/drivers/input/misc/88pm860x_onkey.c b/drivers/input/misc/88pm860x_onkey.c
index 4cc82826ea6b..3dca3c14510e 100644
--- a/drivers/input/misc/88pm860x_onkey.c
+++ b/drivers/input/misc/88pm860x_onkey.c
@@ -74,7 +74,7 @@ static int __devinit pm860x_onkey_probe(struct platform_device *pdev)
 	info->chip = chip;
 	info->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
 	info->dev = &pdev->dev;
-	info->irq = irq + chip->irq_base;
+	info->irq = irq;
 
 	info->idev = input_allocate_device();
 	if (!info->idev) {
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index b0c6772851a9..f9cf0881b0e3 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -454,4 +454,17 @@ config INPUT_CMA3000_I2C
 	  To compile this driver as a module, choose M here: the
 	  module will be called cma3000_d0x_i2c.
 
+config INPUT_XEN_KBDDEV_FRONTEND
+	tristate "Xen virtual keyboard and mouse support"
+	depends on XEN_FBDEV_FRONTEND
+	default y
+	select XEN_XENBUS_FRONTEND
+	help
+	  This driver implements the front-end of the Xen virtual
+	  keyboard and mouse device driver.  It communicates with a back-end
+	  in another domain.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called xen-kbdfront.
+
 endif
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 9b4797112c9a..e3f7984e6274 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -42,5 +42,6 @@ obj-$(CONFIG_INPUT_TWL4030_VIBRA)	+= twl4030-vibra.o
 obj-$(CONFIG_INPUT_UINPUT)		+= uinput.o
 obj-$(CONFIG_INPUT_WISTRON_BTNS)	+= wistron_btns.o
 obj-$(CONFIG_INPUT_WM831X_ON)		+= wm831x-on.o
+obj-$(CONFIG_INPUT_XEN_KBDDEV_FRONTEND)	+= xen-kbdfront.o
 obj-$(CONFIG_INPUT_YEALINK)		+= yealink.o
 
diff --git a/drivers/input/misc/ad714x-i2c.c b/drivers/input/misc/ad714x-i2c.c
index 2bef8fa56c94..e21deb1baa8a 100644
--- a/drivers/input/misc/ad714x-i2c.c
+++ b/drivers/input/misc/ad714x-i2c.c
@@ -10,23 +10,23 @@
 #include <linux/i2c.h>
 #include <linux/module.h>
 #include <linux/types.h>
+#include <linux/pm.h>
 #include "ad714x.h"
 
 #ifdef CONFIG_PM
-static int ad714x_i2c_suspend(struct i2c_client *client, pm_message_t message)
+static int ad714x_i2c_suspend(struct device *dev)
 {
-	return ad714x_disable(i2c_get_clientdata(client));
+	return ad714x_disable(i2c_get_clientdata(to_i2c_client(dev)));
 }
 
-static int ad714x_i2c_resume(struct i2c_client *client)
+static int ad714x_i2c_resume(struct device *dev)
 {
-	return ad714x_enable(i2c_get_clientdata(client));
+	return ad714x_enable(i2c_get_clientdata(to_i2c_client(dev)));
 }
-#else
-# define ad714x_i2c_suspend NULL
-# define ad714x_i2c_resume  NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(ad714x_i2c_pm, ad714x_i2c_suspend, ad714x_i2c_resume);
+
 static int ad714x_i2c_write(struct device *dev, unsigned short reg,
 				unsigned short data)
 {
@@ -114,11 +114,10 @@ MODULE_DEVICE_TABLE(i2c, ad714x_id);
 static struct i2c_driver ad714x_i2c_driver = {
 	.driver = {
 		.name = "ad714x_captouch",
+		.pm   = &ad714x_i2c_pm,
 	},
 	.probe    = ad714x_i2c_probe,
 	.remove   = __devexit_p(ad714x_i2c_remove),
-	.suspend  = ad714x_i2c_suspend,
-	.resume	  = ad714x_i2c_resume,
 	.id_table = ad714x_id,
 };
 
diff --git a/drivers/input/misc/ad714x-spi.c b/drivers/input/misc/ad714x-spi.c
index 7f8dedfd1bfe..4120dd549305 100644
--- a/drivers/input/misc/ad714x-spi.c
+++ b/drivers/input/misc/ad714x-spi.c
@@ -9,6 +9,7 @@
 #include <linux/input.h>	/* BUS_I2C */
 #include <linux/module.h>
 #include <linux/spi/spi.h>
+#include <linux/pm.h>
 #include <linux/types.h>
 #include "ad714x.h"
 
@@ -16,20 +17,19 @@
 #define AD714x_SPI_READ            BIT(10)
 
 #ifdef CONFIG_PM
-static int ad714x_spi_suspend(struct spi_device *spi, pm_message_t message)
+static int ad714x_spi_suspend(struct device *dev)
 {
-	return ad714x_disable(spi_get_drvdata(spi));
+	return ad714x_disable(spi_get_drvdata(to_spi_device(dev)));
 }
 
-static int ad714x_spi_resume(struct spi_device *spi)
+static int ad714x_spi_resume(struct device *dev)
 {
-	return ad714x_enable(spi_get_drvdata(spi));
+	return ad714x_enable(spi_get_drvdata(to_spi_device(dev)));
 }
-#else
-# define ad714x_spi_suspend NULL
-# define ad714x_spi_resume  NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(ad714x_spi_pm, ad714x_spi_suspend, ad714x_spi_resume);
+
 static int ad714x_spi_read(struct device *dev, unsigned short reg,
 		unsigned short *data)
 {
@@ -79,11 +79,10 @@ static struct spi_driver ad714x_spi_driver = {
 	.driver = {
 		.name	= "ad714x_captouch",
 		.owner	= THIS_MODULE,
+		.pm	= &ad714x_spi_pm,
 	},
 	.probe		= ad714x_spi_probe,
 	.remove		= __devexit_p(ad714x_spi_remove),
-	.suspend	= ad714x_spi_suspend,
-	.resume		= ad714x_spi_resume,
 };
 
 static __init int ad714x_spi_init(void)
diff --git a/drivers/input/misc/adxl34x-i2c.c b/drivers/input/misc/adxl34x-i2c.c
index 0779724af7e7..ccacf2bb06a4 100644
--- a/drivers/input/misc/adxl34x-i2c.c
+++ b/drivers/input/misc/adxl34x-i2c.c
@@ -11,6 +11,7 @@
 #include <linux/i2c.h>
 #include <linux/module.h>
 #include <linux/types.h>
+#include <linux/pm.h>
 #include "adxl34x.h"
 
 static int adxl34x_smbus_read(struct device *dev, unsigned char reg)
@@ -105,8 +106,9 @@ static int __devexit adxl34x_i2c_remove(struct i2c_client *client)
 }
 
 #ifdef CONFIG_PM
-static int adxl34x_i2c_suspend(struct i2c_client *client, pm_message_t message)
+static int adxl34x_i2c_suspend(struct device *dev)
 {
+	struct i2c_client *client = to_i2c_client(dev);
 	struct adxl34x *ac = i2c_get_clientdata(client);
 
 	adxl34x_suspend(ac);
@@ -114,19 +116,20 @@ static int adxl34x_i2c_suspend(struct i2c_client *client, pm_message_t message)
 	return 0;
 }
 
-static int adxl34x_i2c_resume(struct i2c_client *client)
+static int adxl34x_i2c_resume(struct device *dev)
 {
+	struct i2c_client *client = to_i2c_client(dev);
 	struct adxl34x *ac = i2c_get_clientdata(client);
 
 	adxl34x_resume(ac);
 
 	return 0;
 }
-#else
-# define adxl34x_i2c_suspend NULL
-# define adxl34x_i2c_resume  NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(adxl34x_i2c_pm, adxl34x_i2c_suspend,
+			 adxl34x_i2c_resume);
+
 static const struct i2c_device_id adxl34x_id[] = {
 	{ "adxl34x", 0 },
 	{ }
@@ -138,11 +141,10 @@ static struct i2c_driver adxl34x_driver = {
 	.driver = {
 		.name = "adxl34x",
 		.owner = THIS_MODULE,
+		.pm = &adxl34x_i2c_pm,
 	},
 	.probe    = adxl34x_i2c_probe,
 	.remove   = __devexit_p(adxl34x_i2c_remove),
-	.suspend  = adxl34x_i2c_suspend,
-	.resume   = adxl34x_i2c_resume,
 	.id_table = adxl34x_id,
 };
 
diff --git a/drivers/input/misc/adxl34x-spi.c b/drivers/input/misc/adxl34x-spi.c
index 782de9e89828..f29de22fdda0 100644
--- a/drivers/input/misc/adxl34x-spi.c
+++ b/drivers/input/misc/adxl34x-spi.c
@@ -10,6 +10,7 @@
 #include <linux/input.h>	/* BUS_SPI */
 #include <linux/module.h>
 #include <linux/spi/spi.h>
+#include <linux/pm.h>
 #include <linux/types.h>
 #include "adxl34x.h"
 
@@ -57,7 +58,7 @@ static int adxl34x_spi_read_block(struct device *dev,
 	return (status < 0) ? status : 0;
 }
 
-static const struct adxl34x_bus_ops adx134x_spi_bops = {
+static const struct adxl34x_bus_ops adxl34x_spi_bops = {
 	.bustype	= BUS_SPI,
 	.write		= adxl34x_spi_write,
 	.read		= adxl34x_spi_read,
@@ -76,7 +77,7 @@ static int __devinit adxl34x_spi_probe(struct spi_device *spi)
 
 	ac = adxl34x_probe(&spi->dev, spi->irq,
 			   spi->max_speed_hz > MAX_FREQ_NO_FIFODELAY,
-			   &adx134x_spi_bops);
+			   &adxl34x_spi_bops);
 
 	if (IS_ERR(ac))
 		return PTR_ERR(ac);
@@ -94,8 +95,9 @@ static int __devexit adxl34x_spi_remove(struct spi_device *spi)
 }
 
 #ifdef CONFIG_PM
-static int adxl34x_spi_suspend(struct spi_device *spi, pm_message_t message)
+static int adxl34x_spi_suspend(struct device *dev)
 {
+	struct spi_device *spi = to_spi_device(dev);
 	struct adxl34x *ac = dev_get_drvdata(&spi->dev);
 
 	adxl34x_suspend(ac);
@@ -103,29 +105,29 @@ static int adxl34x_spi_suspend(struct spi_device *spi, pm_message_t message)
 	return 0;
 }
 
-static int adxl34x_spi_resume(struct spi_device *spi)
+static int adxl34x_spi_resume(struct device *dev)
 {
+	struct spi_device *spi = to_spi_device(dev);
 	struct adxl34x *ac = dev_get_drvdata(&spi->dev);
 
 	adxl34x_resume(ac);
 
 	return 0;
 }
-#else
-# define adxl34x_spi_suspend NULL
-# define adxl34x_spi_resume  NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(adxl34x_spi_pm, adxl34x_spi_suspend,
+			 adxl34x_spi_resume);
+
 static struct spi_driver adxl34x_driver = {
 	.driver = {
 		.name = "adxl34x",
 		.bus = &spi_bus_type,
 		.owner = THIS_MODULE,
+		.pm = &adxl34x_spi_pm,
 	},
 	.probe   = adxl34x_spi_probe,
 	.remove  = __devexit_p(adxl34x_spi_remove),
-	.suspend = adxl34x_spi_suspend,
-	.resume  = adxl34x_spi_resume,
 };
 
 static int __init adxl34x_spi_init(void)
diff --git a/drivers/input/misc/ati_remote2.c b/drivers/input/misc/ati_remote2.c
index 0b0e9be63542..9ccdb82d869a 100644
--- a/drivers/input/misc/ati_remote2.c
+++ b/drivers/input/misc/ati_remote2.c
@@ -612,8 +612,8 @@ static int ati_remote2_input_init(struct ati_remote2 *ar2)
 	idev->open = ati_remote2_open;
 	idev->close = ati_remote2_close;
 
-	idev->getkeycode_new = ati_remote2_getkeycode;
-	idev->setkeycode_new = ati_remote2_setkeycode;
+	idev->getkeycode = ati_remote2_getkeycode;
+	idev->setkeycode = ati_remote2_setkeycode;
 
 	idev->name = ar2->name;
 	idev->phys = ar2->phys;
diff --git a/drivers/input/misc/ixp4xx-beeper.c b/drivers/input/misc/ixp4xx-beeper.c
index 9dfd6e5f786f..1f38302a5951 100644
--- a/drivers/input/misc/ixp4xx-beeper.c
+++ b/drivers/input/misc/ixp4xx-beeper.c
@@ -69,11 +69,7 @@ static int ixp4xx_spkr_event(struct input_dev *dev, unsigned int type, unsigned
 	}
 
 	if (value > 20 && value < 32767)
-#ifndef FREQ
-		count = (ixp4xx_get_board_tick_rate() / (value * 4)) - 1;
-#else
-		count = (FREQ / (value * 4)) - 1;
-#endif
+		count = (IXP4XX_TIMER_FREQ / (value * 4)) - 1;
 
 	ixp4xx_spkr_control(pin, count);
 
diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c
index 1f8e0108962e..7e64d01da2be 100644
--- a/drivers/input/misc/rotary_encoder.c
+++ b/drivers/input/misc/rotary_encoder.c
@@ -176,7 +176,7 @@ static int __devinit rotary_encoder_probe(struct platform_device *pdev)
 
 	/* request the IRQs */
 	err = request_irq(encoder->irq_a, &rotary_encoder_irq,
-			  IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE,
+			  IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 			  DRV_NAME, encoder);
 	if (err) {
 		dev_err(&pdev->dev, "unable to request IRQ %d\n",
@@ -185,7 +185,7 @@ static int __devinit rotary_encoder_probe(struct platform_device *pdev)
 	}
 
 	err = request_irq(encoder->irq_b, &rotary_encoder_irq,
-			  IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE,
+			  IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 			  DRV_NAME, encoder);
 	if (err) {
 		dev_err(&pdev->dev, "unable to request IRQ %d\n",
diff --git a/drivers/input/misc/sparcspkr.c b/drivers/input/misc/sparcspkr.c
index 8e130bf7d32b..0122f5351577 100644
--- a/drivers/input/misc/sparcspkr.c
+++ b/drivers/input/misc/sparcspkr.c
@@ -173,18 +173,16 @@ static int __devinit sparcspkr_probe(struct device *dev)
 	return 0;
 }
 
-static int sparcspkr_shutdown(struct platform_device *dev)
+static void sparcspkr_shutdown(struct platform_device *dev)
 {
 	struct sparcspkr_state *state = dev_get_drvdata(&dev->dev);
 	struct input_dev *input_dev = state->input_dev;
 
 	/* turn off the speaker */
 	state->event(input_dev, EV_SND, SND_BELL, 0);
-
-	return 0;
 }
 
-static int __devinit bbc_beep_probe(struct platform_device *op, const struct of_device_id *match)
+static int __devinit bbc_beep_probe(struct platform_device *op)
 {
 	struct sparcspkr_state *state;
 	struct bbc_beep_info *info;
@@ -258,7 +256,7 @@ static const struct of_device_id bbc_beep_match[] = {
 	{},
 };
 
-static struct of_platform_driver bbc_beep_driver = {
+static struct platform_driver bbc_beep_driver = {
 	.driver = {
 		.name = "bbcbeep",
 		.owner = THIS_MODULE,
@@ -269,7 +267,7 @@ static struct of_platform_driver bbc_beep_driver = {
 	.shutdown	= sparcspkr_shutdown,
 };
 
-static int __devinit grover_beep_probe(struct platform_device *op, const struct of_device_id *match)
+static int __devinit grover_beep_probe(struct platform_device *op)
 {
 	struct sparcspkr_state *state;
 	struct grover_beep_info *info;
@@ -340,7 +338,7 @@ static const struct of_device_id grover_beep_match[] = {
 	{},
 };
 
-static struct of_platform_driver grover_beep_driver = {
+static struct platform_driver grover_beep_driver = {
 	.driver = {
 		.name = "groverbeep",
 		.owner = THIS_MODULE,
@@ -353,12 +351,12 @@ static struct of_platform_driver grover_beep_driver = {
 
 static int __init sparcspkr_init(void)
 {
-	int err = of_register_platform_driver(&bbc_beep_driver);
+	int err = platform_driver_register(&bbc_beep_driver);
 
 	if (!err) {
-		err = of_register_platform_driver(&grover_beep_driver);
+		err = platform_driver_register(&grover_beep_driver);
 		if (err)
-			of_unregister_platform_driver(&bbc_beep_driver);
+			platform_driver_unregister(&bbc_beep_driver);
 	}
 
 	return err;
@@ -366,8 +364,8 @@ static int __init sparcspkr_init(void)
 
 static void __exit sparcspkr_exit(void)
 {
-	of_unregister_platform_driver(&bbc_beep_driver);
-	of_unregister_platform_driver(&grover_beep_driver);
+	platform_driver_unregister(&bbc_beep_driver);
+	platform_driver_unregister(&grover_beep_driver);
 }
 
 module_init(sparcspkr_init);
diff --git a/drivers/input/misc/twl4030-vibra.c b/drivers/input/misc/twl4030-vibra.c
index 014dd4ad0d4f..6a11694e3fc7 100644
--- a/drivers/input/misc/twl4030-vibra.c
+++ b/drivers/input/misc/twl4030-vibra.c
@@ -29,6 +29,7 @@
 #include <linux/workqueue.h>
 #include <linux/i2c/twl.h>
 #include <linux/mfd/twl4030-codec.h>
+#include <linux/mfd/core.h>
 #include <linux/input.h>
 #include <linux/slab.h>
 
@@ -196,7 +197,7 @@ static SIMPLE_DEV_PM_OPS(twl4030_vibra_pm_ops,
 
 static int __devinit twl4030_vibra_probe(struct platform_device *pdev)
 {
-	struct twl4030_codec_vibra_data *pdata = pdev->dev.platform_data;
+	struct twl4030_codec_vibra_data *pdata = mfd_get_data(pdev);
 	struct vibra_info *info;
 	int ret;
 
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 82542a1c1098..364bdf43a381 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -347,8 +347,7 @@ static int uinput_setup_device(struct uinput_device *udev, const char __user *bu
 {
 	struct uinput_user_dev	*user_dev;
 	struct input_dev	*dev;
-	char			*name;
-	int			i, size;
+	int			i;
 	int			retval;
 
 	if (count != sizeof(struct uinput_user_dev))
@@ -362,30 +361,25 @@ static int uinput_setup_device(struct uinput_device *udev, const char __user *bu
 
 	dev = udev->dev;
 
-	user_dev = kmalloc(sizeof(struct uinput_user_dev), GFP_KERNEL);
-	if (!user_dev)
-		return -ENOMEM;
-
-	if (copy_from_user(user_dev, buffer, sizeof(struct uinput_user_dev))) {
-		retval = -EFAULT;
-		goto exit;
-	}
+	user_dev = memdup_user(buffer, sizeof(struct uinput_user_dev));
+	if (IS_ERR(user_dev))
+		return PTR_ERR(user_dev);
 
 	udev->ff_effects_max = user_dev->ff_effects_max;
 
-	size = strnlen(user_dev->name, UINPUT_MAX_NAME_SIZE) + 1;
-	if (!size) {
+	/* Ensure name is filled in */
+	if (!user_dev->name[0]) {
 		retval = -EINVAL;
 		goto exit;
 	}
 
 	kfree(dev->name);
-	dev->name = name = kmalloc(size, GFP_KERNEL);
-	if (!name) {
+	dev->name = kstrndup(user_dev->name, UINPUT_MAX_NAME_SIZE,
+			     GFP_KERNEL);
+	if (!dev->name) {
 		retval = -ENOMEM;
 		goto exit;
 	}
-	strlcpy(name, user_dev->name, size);
 
 	dev->id.bustype	= user_dev->id.bustype;
 	dev->id.vendor	= user_dev->id.vendor;
@@ -622,7 +616,6 @@ static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
 	struct uinput_ff_upload ff_up;
 	struct uinput_ff_erase  ff_erase;
 	struct uinput_request   *req;
-	int                     length;
 	char			*phys;
 
 	retval = mutex_lock_interruptible(&udev->mutex);
@@ -689,24 +682,15 @@ static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
 				retval = -EINVAL;
 				goto out;
 			}
-			length = strnlen_user(p, 1024);
-			if (length <= 0) {
-				retval = -EFAULT;
-				break;
+
+			phys = strndup_user(p, 1024);
+			if (IS_ERR(phys)) {
+				retval = PTR_ERR(phys);
+				goto out;
 			}
+
 			kfree(udev->dev->phys);
-			udev->dev->phys = phys = kmalloc(length, GFP_KERNEL);
-			if (!phys) {
-				retval = -ENOMEM;
-				break;
-			}
-			if (copy_from_user(phys, p, length)) {
-				udev->dev->phys = NULL;
-				kfree(phys);
-				retval = -EFAULT;
-				break;
-			}
-			phys[length - 1] = '\0';
+			udev->dev->phys = phys;
 			break;
 
 		case UI_BEGIN_FF_UPLOAD:
diff --git a/drivers/input/xen-kbdfront.c b/drivers/input/misc/xen-kbdfront.c
index 7f85a862ad11..7077f9bf5ead 100644
--- a/drivers/input/xen-kbdfront.c
+++ b/drivers/input/misc/xen-kbdfront.c
@@ -11,12 +11,6 @@
  *  more details.
  */
 
-/*
- * TODO:
- *
- * Switch to grant tables together with xen-fbfront.c.
- */
-
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/kernel.h>
@@ -30,6 +24,8 @@
 #include <xen/xen.h>
 #include <xen/events.h>
 #include <xen/page.h>
+#include <xen/grant_table.h>
+#include <xen/interface/grant_table.h>
 #include <xen/interface/io/fbif.h>
 #include <xen/interface/io/kbdif.h>
 #include <xen/xenbus.h>
@@ -38,6 +34,7 @@ struct xenkbd_info {
 	struct input_dev *kbd;
 	struct input_dev *ptr;
 	struct xenkbd_page *page;
+	int gref;
 	int irq;
 	struct xenbus_device *xbdev;
 	char phys[32];
@@ -110,7 +107,7 @@ static irqreturn_t input_handler(int rq, void *dev_id)
 static int __devinit xenkbd_probe(struct xenbus_device *dev,
 				  const struct xenbus_device_id *id)
 {
-	int ret, i;
+	int ret, i, abs;
 	struct xenkbd_info *info;
 	struct input_dev *kbd, *ptr;
 
@@ -122,12 +119,18 @@ static int __devinit xenkbd_probe(struct xenbus_device *dev,
 	dev_set_drvdata(&dev->dev, info);
 	info->xbdev = dev;
 	info->irq = -1;
+	info->gref = -1;
 	snprintf(info->phys, sizeof(info->phys), "xenbus/%s", dev->nodename);
 
 	info->page = (void *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
 	if (!info->page)
 		goto error_nomem;
 
+	if (xenbus_scanf(XBT_NIL, dev->otherend, "feature-abs-pointer", "%d", &abs) < 0)
+		abs = 0;
+	if (abs)
+		xenbus_printf(XBT_NIL, dev->nodename, "request-abs-pointer", "1");
+
 	/* keyboard */
 	kbd = input_allocate_device();
 	if (!kbd)
@@ -137,11 +140,12 @@ static int __devinit xenkbd_probe(struct xenbus_device *dev,
 	kbd->id.bustype = BUS_PCI;
 	kbd->id.vendor = 0x5853;
 	kbd->id.product = 0xffff;
-	kbd->evbit[0] = BIT(EV_KEY);
+
+	__set_bit(EV_KEY, kbd->evbit);
 	for (i = KEY_ESC; i < KEY_UNKNOWN; i++)
-		set_bit(i, kbd->keybit);
+		__set_bit(i, kbd->keybit);
 	for (i = KEY_OK; i < KEY_MAX; i++)
-		set_bit(i, kbd->keybit);
+		__set_bit(i, kbd->keybit);
 
 	ret = input_register_device(kbd);
 	if (ret) {
@@ -160,12 +164,20 @@ static int __devinit xenkbd_probe(struct xenbus_device *dev,
 	ptr->id.bustype = BUS_PCI;
 	ptr->id.vendor = 0x5853;
 	ptr->id.product = 0xfffe;
-	ptr->evbit[0] = BIT(EV_KEY) | BIT(EV_REL) | BIT(EV_ABS);
+
+	if (abs) {
+		__set_bit(EV_ABS, ptr->evbit);
+		input_set_abs_params(ptr, ABS_X, 0, XENFB_WIDTH, 0, 0);
+		input_set_abs_params(ptr, ABS_Y, 0, XENFB_HEIGHT, 0, 0);
+	} else {
+		input_set_capability(ptr, EV_REL, REL_X);
+		input_set_capability(ptr, EV_REL, REL_Y);
+	}
+	input_set_capability(ptr, EV_REL, REL_WHEEL);
+
+	__set_bit(EV_KEY, ptr->evbit);
 	for (i = BTN_LEFT; i <= BTN_TASK; i++)
-		set_bit(i, ptr->keybit);
-	ptr->relbit[0] = BIT(REL_X) | BIT(REL_Y) | BIT(REL_WHEEL);
-	input_set_abs_params(ptr, ABS_X, 0, XENFB_WIDTH, 0, 0);
-	input_set_abs_params(ptr, ABS_Y, 0, XENFB_HEIGHT, 0, 0);
+		__set_bit(i, ptr->keybit);
 
 	ret = input_register_device(ptr);
 	if (ret) {
@@ -218,15 +230,20 @@ static int xenkbd_connect_backend(struct xenbus_device *dev,
 	int ret, evtchn;
 	struct xenbus_transaction xbt;
 
+	ret = gnttab_grant_foreign_access(dev->otherend_id,
+	                                  virt_to_mfn(info->page), 0);
+	if (ret < 0)
+		return ret;
+	info->gref = ret;
+
 	ret = xenbus_alloc_evtchn(dev, &evtchn);
 	if (ret)
-		return ret;
+		goto error_grant;
 	ret = bind_evtchn_to_irqhandler(evtchn, input_handler,
 					0, dev->devicetype, info);
 	if (ret < 0) {
-		xenbus_free_evtchn(dev, evtchn);
 		xenbus_dev_fatal(dev, ret, "bind_evtchn_to_irqhandler");
-		return ret;
+		goto error_evtchan;
 	}
 	info->irq = ret;
 
@@ -234,12 +251,15 @@ static int xenkbd_connect_backend(struct xenbus_device *dev,
 	ret = xenbus_transaction_start(&xbt);
 	if (ret) {
 		xenbus_dev_fatal(dev, ret, "starting transaction");
-		return ret;
+		goto error_irqh;
 	}
 	ret = xenbus_printf(xbt, dev->nodename, "page-ref", "%lu",
 			    virt_to_mfn(info->page));
 	if (ret)
 		goto error_xenbus;
+	ret = xenbus_printf(xbt, dev->nodename, "page-gref", "%u", info->gref);
+	if (ret)
+		goto error_xenbus;
 	ret = xenbus_printf(xbt, dev->nodename, "event-channel", "%u",
 			    evtchn);
 	if (ret)
@@ -249,7 +269,7 @@ static int xenkbd_connect_backend(struct xenbus_device *dev,
 		if (ret == -EAGAIN)
 			goto again;
 		xenbus_dev_fatal(dev, ret, "completing transaction");
-		return ret;
+		goto error_irqh;
 	}
 
 	xenbus_switch_state(dev, XenbusStateInitialised);
@@ -258,6 +278,14 @@ static int xenkbd_connect_backend(struct xenbus_device *dev,
  error_xenbus:
 	xenbus_transaction_end(xbt, 1);
 	xenbus_dev_fatal(dev, ret, "writing xenstore");
+ error_irqh:
+	unbind_from_irqhandler(info->irq, info);
+	info->irq = -1;
+ error_evtchan:
+	xenbus_free_evtchn(dev, evtchn);
+ error_grant:
+	gnttab_end_foreign_access_ref(info->gref, 0);
+	info->gref = -1;
 	return ret;
 }
 
@@ -266,13 +294,16 @@ static void xenkbd_disconnect_backend(struct xenkbd_info *info)
 	if (info->irq >= 0)
 		unbind_from_irqhandler(info->irq, info);
 	info->irq = -1;
+	if (info->gref >= 0)
+		gnttab_end_foreign_access_ref(info->gref, 0);
+	info->gref = -1;
 }
 
 static void xenkbd_backend_changed(struct xenbus_device *dev,
 				   enum xenbus_state backend_state)
 {
 	struct xenkbd_info *info = dev_get_drvdata(&dev->dev);
-	int ret, val;
+	int val;
 
 	switch (backend_state) {
 	case XenbusStateInitialising:
@@ -285,16 +316,6 @@ static void xenkbd_backend_changed(struct xenbus_device *dev,
 
 	case XenbusStateInitWait:
 InitWait:
-		ret = xenbus_scanf(XBT_NIL, info->xbdev->otherend,
-				   "feature-abs-pointer", "%d", &val);
-		if (ret < 0)
-			val = 0;
-		if (val) {
-			ret = xenbus_printf(XBT_NIL, info->xbdev->nodename,
-					    "request-abs-pointer", "1");
-			if (ret)
-				pr_warning("can't request abs-pointer\n");
-		}
 		xenbus_switch_state(dev, XenbusStateConnected);
 		break;
 
diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c
index ee82851afe3e..3aead91bacc8 100644
--- a/drivers/input/mouse/bcm5974.c
+++ b/drivers/input/mouse/bcm5974.c
@@ -63,6 +63,10 @@
 #define USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI	0x0242
 #define USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO	0x0243
 #define USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS	0x0244
+/* Macbook8 (unibody, March 2011) */
+#define USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI	0x0245
+#define USB_DEVICE_ID_APPLE_WELLSPRING5_ISO	0x0246
+#define USB_DEVICE_ID_APPLE_WELLSPRING5_JIS	0x0247
 
 #define BCM5974_DEVICE(prod) {					\
 	.match_flags = (USB_DEVICE_ID_MATCH_DEVICE |		\
@@ -96,6 +100,10 @@ static const struct usb_device_id bcm5974_table[] = {
 	BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI),
 	BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO),
 	BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS),
+	/* MacbookPro8 */
+	BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI),
+	BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_ISO),
+	BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_JIS),
 	/* Terminating entry */
 	{}
 };
@@ -274,6 +282,18 @@ static const struct bcm5974_config bcm5974_config_table[] = {
 		{ DIM_X, DIM_X / SN_COORD, -4616, 5112 },
 		{ DIM_Y, DIM_Y / SN_COORD, -142, 5234 }
 	},
+	{
+		USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI,
+		USB_DEVICE_ID_APPLE_WELLSPRING5_ISO,
+		USB_DEVICE_ID_APPLE_WELLSPRING5_JIS,
+		HAS_INTEGRATED_BUTTON,
+		0x84, sizeof(struct bt_data),
+		0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+		{ DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
+		{ DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
+		{ DIM_X, DIM_X / SN_COORD, -4415, 5050 },
+		{ DIM_Y, DIM_Y / SN_COORD, -55, 6680 }
+	},
 	{}
 };
 
@@ -430,10 +450,6 @@ static int report_tp_state(struct bcm5974 *dev, int size)
 		ptest = int2bound(&c->p, raw_p);
 		origin = raw2int(f->origin);
 
-		/* set the integrated button if applicable */
-		if (c->tp_type == TYPE2)
-			ibt = raw2int(dev->tp_data[BUTTON_TYPE2]);
-
 		/* while tracking finger still valid, count all fingers */
 		if (ptest > PRESSURE_LOW && origin) {
 			abs_p = ptest;
@@ -452,6 +468,10 @@ static int report_tp_state(struct bcm5974 *dev, int size)
 		}
 	}
 
+	/* set the integrated button if applicable */
+	if (c->tp_type == TYPE2)
+		ibt = raw2int(dev->tp_data[BUTTON_TYPE2]);
+
 	if (dev->fingers < nmin)
 		dev->fingers = nmin;
 	if (dev->fingers > nmax)
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index da392c22fc6c..aa186cf6c514 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -755,23 +755,26 @@ static int synaptics_reconnect(struct psmouse *psmouse)
 {
 	struct synaptics_data *priv = psmouse->private;
 	struct synaptics_data old_priv = *priv;
+	int retry = 0;
+	int error;
 
-	psmouse_reset(psmouse);
+	do {
+		psmouse_reset(psmouse);
+		error = synaptics_detect(psmouse, 0);
+	} while (error && ++retry < 3);
 
-	if (synaptics_detect(psmouse, 0))
+	if (error)
 		return -1;
 
+	if (retry > 1)
+		printk(KERN_DEBUG "Synaptics reconnected after %d tries\n",
+			retry);
+
 	if (synaptics_query_hardware(psmouse)) {
 		printk(KERN_ERR "Unable to query Synaptics hardware.\n");
 		return -1;
 	}
 
-	if (old_priv.identity != priv->identity ||
-	    old_priv.model_id != priv->model_id ||
-	    old_priv.capabilities != priv->capabilities ||
-	    old_priv.ext_cap != priv->ext_cap)
-		return -1;
-
 	if (synaptics_set_absolute_mode(psmouse)) {
 		printk(KERN_ERR "Unable to initialize Synaptics hardware.\n");
 		return -1;
@@ -782,6 +785,19 @@ static int synaptics_reconnect(struct psmouse *psmouse)
 		return -1;
 	}
 
+	if (old_priv.identity != priv->identity ||
+	    old_priv.model_id != priv->model_id ||
+	    old_priv.capabilities != priv->capabilities ||
+	    old_priv.ext_cap != priv->ext_cap) {
+		printk(KERN_ERR "Synaptics hardware appears to be different: "
+			"id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n",
+			old_priv.identity, priv->identity,
+			old_priv.model_id, priv->model_id,
+			old_priv.capabilities, priv->capabilities,
+			old_priv.ext_cap, priv->ext_cap);
+		return -1;
+	}
+
 	return 0;
 }
 
diff --git a/drivers/input/mouse/synaptics.h b/drivers/input/mouse/synaptics.h
index 25e5d042a72c..7453938bf5ef 100644
--- a/drivers/input/mouse/synaptics.h
+++ b/drivers/input/mouse/synaptics.h
@@ -51,6 +51,29 @@
 #define SYN_EXT_CAP_REQUESTS(c)		(((c) & 0x700000) >> 20)
 #define SYN_CAP_MULTI_BUTTON_NO(ec)	(((ec) & 0x00f000) >> 12)
 #define SYN_CAP_PRODUCT_ID(ec)		(((ec) & 0xff0000) >> 16)
+
+/*
+ * The following describes response for the 0x0c query.
+ *
+ * byte	mask	name			meaning
+ * ----	----	-------			------------
+ * 1	0x01	adjustable threshold	capacitive button sensitivity
+ *					can be adjusted
+ * 1	0x02	report max		query 0x0d gives max coord reported
+ * 1	0x04	clearpad		sensor is ClearPad product
+ * 1	0x08	advanced gesture	not particularly meaningful
+ * 1	0x10	clickpad bit 0		1-button ClickPad
+ * 1	0x60	multifinger mode	identifies firmware finger counting
+ *					(not reporting!) algorithm.
+ *					Not particularly meaningful
+ * 1	0x80    covered pad		W clipped to 14, 15 == pad mostly covered
+ * 2	0x01    clickpad bit 1		2-button ClickPad
+ * 2	0x02    deluxe LED controls	touchpad support LED commands
+ *					ala multimedia control bar
+ * 2	0x04	reduced filtering	firmware does less filtering on
+ *					position data, driver should watch
+ *					for noise.
+ */
 #define SYN_CAP_CLICKPAD(ex0c)		((ex0c) & 0x100000) /* 1-button ClickPad */
 #define SYN_CAP_CLICKPAD2BTN(ex0c)	((ex0c) & 0x000100) /* 2-button ClickPad */
 #define SYN_CAP_MAX_DIMENSIONS(ex0c)	((ex0c) & 0x020000)
diff --git a/drivers/input/mouse/synaptics_i2c.c b/drivers/input/mouse/synaptics_i2c.c
index 0ae62f0bcb32..f6aa26d305ed 100644
--- a/drivers/input/mouse/synaptics_i2c.c
+++ b/drivers/input/mouse/synaptics_i2c.c
@@ -18,6 +18,7 @@
 #include <linux/delay.h>
 #include <linux/workqueue.h>
 #include <linux/slab.h>
+#include <linux/pm.h>
 
 #define DRIVER_NAME		"synaptics_i2c"
 /* maximum product id is 15 characters */
@@ -619,8 +620,9 @@ static int __devexit synaptics_i2c_remove(struct i2c_client *client)
 }
 
 #ifdef CONFIG_PM
-static int synaptics_i2c_suspend(struct i2c_client *client, pm_message_t mesg)
+static int synaptics_i2c_suspend(struct device *dev)
 {
+	struct i2c_client *client = to_i2c_client(dev);
 	struct synaptics_i2c *touch = i2c_get_clientdata(client);
 
 	cancel_delayed_work_sync(&touch->dwork);
@@ -631,9 +633,10 @@ static int synaptics_i2c_suspend(struct i2c_client *client, pm_message_t mesg)
 	return 0;
 }
 
-static int synaptics_i2c_resume(struct i2c_client *client)
+static int synaptics_i2c_resume(struct device *dev)
 {
 	int ret;
+	struct i2c_client *client = to_i2c_client(dev);
 	struct synaptics_i2c *touch = i2c_get_clientdata(client);
 
 	ret = synaptics_i2c_reset_config(client);
@@ -645,11 +648,11 @@ static int synaptics_i2c_resume(struct i2c_client *client)
 
 	return 0;
 }
-#else
-#define synaptics_i2c_suspend	NULL
-#define synaptics_i2c_resume	NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(synaptics_i2c_pm, synaptics_i2c_suspend,
+			 synaptics_i2c_resume);
+
 static const struct i2c_device_id synaptics_i2c_id_table[] = {
 	{ "synaptics_i2c", 0 },
 	{ },
@@ -660,13 +663,12 @@ static struct i2c_driver synaptics_i2c_driver = {
 	.driver = {
 		.name	= DRIVER_NAME,
 		.owner	= THIS_MODULE,
+		.pm	= &synaptics_i2c_pm,
 	},
 
 	.probe		= synaptics_i2c_probe,
 	.remove		= __devexit_p(synaptics_i2c_remove),
 
-	.suspend	= synaptics_i2c_suspend,
-	.resume		= synaptics_i2c_resume,
 	.id_table	= synaptics_i2c_id_table,
 };
 
diff --git a/drivers/input/serio/altera_ps2.c b/drivers/input/serio/altera_ps2.c
index 7998560a1904..d363dc4571a3 100644
--- a/drivers/input/serio/altera_ps2.c
+++ b/drivers/input/serio/altera_ps2.c
@@ -19,6 +19,7 @@
 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/slab.h>
+#include <linux/of.h>
 
 #define DRV_NAME "altera_ps2"
 
@@ -173,6 +174,16 @@ static int __devexit altera_ps2_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_OF
+static const struct of_device_id altera_ps2_match[] = {
+	{ .compatible = "ALTR,ps2-1.0", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, altera_ps2_match);
+#else /* CONFIG_OF */
+#define altera_ps2_match NULL
+#endif /* CONFIG_OF */
+
 /*
  * Our device driver structure
  */
@@ -182,6 +193,7 @@ static struct platform_driver altera_ps2_driver = {
 	.driver	= {
 		.name	= DRV_NAME,
 		.owner	= THIS_MODULE,
+		.of_match_table = altera_ps2_match,
 	},
 };
 
@@ -189,13 +201,12 @@ static int __init altera_ps2_init(void)
 {
 	return platform_driver_register(&altera_ps2_driver);
 }
+module_init(altera_ps2_init);
 
 static void __exit altera_ps2_exit(void)
 {
 	platform_driver_unregister(&altera_ps2_driver);
 }
-
-module_init(altera_ps2_init);
 module_exit(altera_ps2_exit);
 
 MODULE_DESCRIPTION("Altera University Program PS2 controller driver");
diff --git a/drivers/input/serio/ambakmi.c b/drivers/input/serio/ambakmi.c
index 92563a681d65..12abc50508e5 100644
--- a/drivers/input/serio/ambakmi.c
+++ b/drivers/input/serio/ambakmi.c
@@ -107,7 +107,8 @@ static void amba_kmi_close(struct serio *io)
 	clk_disable(kmi->clk);
 }
 
-static int __devinit amba_kmi_probe(struct amba_device *dev, struct amba_id *id)
+static int __devinit amba_kmi_probe(struct amba_device *dev,
+	const struct amba_id *id)
 {
 	struct amba_kmi_port *kmi;
 	struct serio *io;
diff --git a/drivers/input/serio/ct82c710.c b/drivers/input/serio/ct82c710.c
index 448c7724beb9..852816567241 100644
--- a/drivers/input/serio/ct82c710.c
+++ b/drivers/input/serio/ct82c710.c
@@ -111,9 +111,11 @@ static void ct82c710_close(struct serio *serio)
 static int ct82c710_open(struct serio *serio)
 {
 	unsigned char status;
+	int err;
 
-	if (request_irq(CT82C710_IRQ, ct82c710_interrupt, 0, "ct82c710", NULL))
-		return -1;
+	err = request_irq(CT82C710_IRQ, ct82c710_interrupt, 0, "ct82c710", NULL);
+	if (err)
+		return err;
 
 	status = inb_p(CT82C710_STATUS);
 
@@ -131,7 +133,7 @@ static int ct82c710_open(struct serio *serio)
 		status &= ~(CT82C710_ENABLE | CT82C710_INTS_ON);
 		outb_p(status, CT82C710_STATUS);
 		free_irq(CT82C710_IRQ, NULL);
-		return -1;
+		return -EBUSY;
 	}
 
 	return 0;
diff --git a/drivers/input/serio/i8042-sparcio.h b/drivers/input/serio/i8042-sparcio.h
index c5cc4508d6df..395a9af3adcd 100644
--- a/drivers/input/serio/i8042-sparcio.h
+++ b/drivers/input/serio/i8042-sparcio.h
@@ -49,7 +49,7 @@ static inline void i8042_write_command(int val)
 #define OBP_PS2MS_NAME1		"kdmouse"
 #define OBP_PS2MS_NAME2		"mouse"
 
-static int __devinit sparc_i8042_probe(struct platform_device *op, const struct of_device_id *match)
+static int __devinit sparc_i8042_probe(struct platform_device *op)
 {
 	struct device_node *dp = op->dev.of_node;
 
@@ -95,7 +95,7 @@ static const struct of_device_id sparc_i8042_match[] = {
 };
 MODULE_DEVICE_TABLE(of, sparc_i8042_match);
 
-static struct of_platform_driver sparc_i8042_driver = {
+static struct platform_driver sparc_i8042_driver = {
 	.driver = {
 		.name = "i8042",
 		.owner = THIS_MODULE,
@@ -116,7 +116,7 @@ static int __init i8042_platform_init(void)
 		if (!kbd_iobase)
 			return -ENODEV;
 	} else {
-		int err = of_register_platform_driver(&sparc_i8042_driver);
+		int err = platform_driver_register(&sparc_i8042_driver);
 		if (err)
 			return err;
 
@@ -140,7 +140,7 @@ static inline void i8042_platform_exit(void)
 	struct device_node *root = of_find_node_by_path("/");
 
 	if (strcmp(root->name, "SUNW,JavaStation-1"))
-		of_unregister_platform_driver(&sparc_i8042_driver);
+		platform_driver_unregister(&sparc_i8042_driver);
 }
 
 #else /* !CONFIG_PCI */
diff --git a/drivers/input/serio/i8042-unicore32io.h b/drivers/input/serio/i8042-unicore32io.h
new file mode 100644
index 000000000000..73f5cc124a36
--- /dev/null
+++ b/drivers/input/serio/i8042-unicore32io.h
@@ -0,0 +1,73 @@
+/*
+ * Code specific to PKUnity SoC and UniCore ISA
+ *
+ *	Maintained by GUAN Xue-tao <gxt@mprc.pku.edu.cn>
+ *	Copyright (C) 2001-2011 Guan Xuetao
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _I8042_UNICORE32_H
+#define _I8042_UNICORE32_H
+
+#include <mach/hardware.h>
+
+/*
+ * Names.
+ */
+#define I8042_KBD_PHYS_DESC "isa0060/serio0"
+#define I8042_AUX_PHYS_DESC "isa0060/serio1"
+#define I8042_MUX_PHYS_DESC "isa0060/serio%d"
+
+/*
+ * IRQs.
+ */
+#define I8042_KBD_IRQ           IRQ_PS2_KBD
+#define I8042_AUX_IRQ           IRQ_PS2_AUX
+
+/*
+ * Register numbers.
+ */
+#define I8042_COMMAND_REG	PS2_COMMAND
+#define I8042_STATUS_REG	PS2_STATUS
+#define I8042_DATA_REG		PS2_DATA
+
+#define I8042_REGION_START	(resource_size_t)(PS2_DATA)
+#define I8042_REGION_SIZE	(resource_size_t)(16)
+
+static inline int i8042_read_data(void)
+{
+	return readb(I8042_DATA_REG);
+}
+
+static inline int i8042_read_status(void)
+{
+	return readb(I8042_STATUS_REG);
+}
+
+static inline void i8042_write_data(int val)
+{
+	writeb(val, I8042_DATA_REG);
+}
+
+static inline void i8042_write_command(int val)
+{
+	writeb(val, I8042_COMMAND_REG);
+}
+
+static inline int i8042_platform_init(void)
+{
+	if (!request_mem_region(I8042_REGION_START, I8042_REGION_SIZE, "i8042"))
+		return -EBUSY;
+
+	i8042_reset = 1;
+	return 0;
+}
+
+static inline void i8042_platform_exit(void)
+{
+	release_mem_region(I8042_REGION_START, I8042_REGION_SIZE);
+}
+
+#endif /* _I8042_UNICORE32_H */
diff --git a/drivers/input/serio/i8042.h b/drivers/input/serio/i8042.h
index ac1d759d0f55..3452708fbe3b 100644
--- a/drivers/input/serio/i8042.h
+++ b/drivers/input/serio/i8042.h
@@ -26,6 +26,8 @@
 #include "i8042-sparcio.h"
 #elif defined(CONFIG_X86) || defined(CONFIG_IA64)
 #include "i8042-x86ia64io.h"
+#elif defined(CONFIG_UNICORE32)
+#include "i8042-unicore32io.h"
 #else
 #include "i8042-io.h"
 #endif
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index db5b0bca1a1a..ba70058e2be3 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -188,7 +188,8 @@ static void serio_free_event(struct serio_event *event)
 	kfree(event);
 }
 
-static void serio_remove_duplicate_events(struct serio_event *event)
+static void serio_remove_duplicate_events(void *object,
+					  enum serio_event_type type)
 {
 	struct serio_event *e, *next;
 	unsigned long flags;
@@ -196,13 +197,13 @@ static void serio_remove_duplicate_events(struct serio_event *event)
 	spin_lock_irqsave(&serio_event_lock, flags);
 
 	list_for_each_entry_safe(e, next, &serio_event_list, node) {
-		if (event->object == e->object) {
+		if (object == e->object) {
 			/*
 			 * If this event is of different type we should not
 			 * look further - we only suppress duplicate events
 			 * that were sent back-to-back.
 			 */
-			if (event->type != e->type)
+			if (type != e->type)
 				break;
 
 			list_del_init(&e->node);
@@ -245,7 +246,7 @@ static void serio_handle_event(struct work_struct *work)
 			break;
 		}
 
-		serio_remove_duplicate_events(event);
+		serio_remove_duplicate_events(event->object, event->type);
 		serio_free_event(event);
 	}
 
@@ -298,7 +299,7 @@ static int serio_queue_event(void *object, struct module *owner,
 	event->owner = owner;
 
 	list_add_tail(&event->node, &serio_event_list);
-	schedule_work(&serio_event_work);
+	queue_work(system_long_wq, &serio_event_work);
 
 out:
 	spin_unlock_irqrestore(&serio_event_lock, flags);
@@ -436,10 +437,12 @@ static ssize_t serio_rebind_driver(struct device *dev, struct device_attribute *
 	} else if (!strncmp(buf, "rescan", count)) {
 		serio_disconnect_port(serio);
 		serio_find_driver(serio);
+		serio_remove_duplicate_events(serio, SERIO_RESCAN_PORT);
 	} else if ((drv = driver_find(buf, &serio_bus)) != NULL) {
 		serio_disconnect_port(serio);
 		error = serio_bind_driver(serio, to_serio_driver(drv));
 		put_driver(drv);
+		serio_remove_duplicate_events(serio, SERIO_RESCAN_PORT);
 	} else {
 		error = -EINVAL;
 	}
diff --git a/drivers/input/serio/serport.c b/drivers/input/serio/serport.c
index 6e362de3f412..8755f5f3ad37 100644
--- a/drivers/input/serio/serport.c
+++ b/drivers/input/serio/serport.c
@@ -116,14 +116,15 @@ static void serport_ldisc_close(struct tty_struct *tty)
 
 /*
  * serport_ldisc_receive() is called by the low level tty driver when characters
- * are ready for us. We forward the characters, one by one to the 'interrupt'
- * routine.
+ * are ready for us. We forward the characters and flags, one by one to the
+ * 'interrupt' routine.
  */
 
 static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *cp, char *fp, int count)
 {
 	struct serport *serport = (struct serport*) tty->disc_data;
 	unsigned long flags;
+	unsigned int ch_flags;
 	int i;
 
 	spin_lock_irqsave(&serport->lock, flags);
@@ -131,8 +132,23 @@ static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *c
 	if (!test_bit(SERPORT_ACTIVE, &serport->flags))
 		goto out;
 
-	for (i = 0; i < count; i++)
-		serio_interrupt(serport->serio, cp[i], 0);
+	for (i = 0; i < count; i++) {
+		switch (fp[i]) {
+		case TTY_FRAME:
+			ch_flags = SERIO_FRAME;
+			break;
+
+		case TTY_PARITY:
+			ch_flags = SERIO_PARITY;
+			break;
+
+		default:
+			ch_flags = 0;
+			break;
+		}
+
+		serio_interrupt(serport->serio, cp[i], ch_flags);
+	}
 
 out:
 	spin_unlock_irqrestore(&serport->lock, flags);
diff --git a/drivers/input/serio/xilinx_ps2.c b/drivers/input/serio/xilinx_ps2.c
index bb14449fb022..7540bafc95cf 100644
--- a/drivers/input/serio/xilinx_ps2.c
+++ b/drivers/input/serio/xilinx_ps2.c
@@ -232,8 +232,7 @@ static void sxps2_close(struct serio *pserio)
  * It returns 0, if the driver is bound to the PS/2 device, or a negative
  * value if there is an error.
  */
-static int __devinit xps2_of_probe(struct platform_device *ofdev,
-				   const struct of_device_id *match)
+static int __devinit xps2_of_probe(struct platform_device *ofdev)
 {
 	struct resource r_irq; /* Interrupt resources */
 	struct resource r_mem; /* IO mem resources */
@@ -361,7 +360,7 @@ static const struct of_device_id xps2_of_match[] __devinitconst = {
 };
 MODULE_DEVICE_TABLE(of, xps2_of_match);
 
-static struct of_platform_driver xps2_of_driver = {
+static struct platform_driver xps2_of_driver = {
 	.driver = {
 		.name = DRIVER_NAME,
 		.owner = THIS_MODULE,
@@ -373,12 +372,12 @@ static struct of_platform_driver xps2_of_driver = {
 
 static int __init xps2_init(void)
 {
-	return of_register_platform_driver(&xps2_of_driver);
+	return platform_driver_register(&xps2_of_driver);
 }
 
 static void __exit xps2_cleanup(void)
 {
-	of_unregister_platform_driver(&xps2_of_driver);
+	platform_driver_unregister(&xps2_of_driver);
 }
 
 module_init(xps2_init);
diff --git a/drivers/input/sparse-keymap.c b/drivers/input/sparse-keymap.c
index a29a7812bd46..337bf51bc984 100644
--- a/drivers/input/sparse-keymap.c
+++ b/drivers/input/sparse-keymap.c
@@ -201,6 +201,7 @@ int sparse_keymap_setup(struct input_dev *dev,
 			break;
 
 		case KE_SW:
+		case KE_VSW:
 			__set_bit(EV_SW, dev->evbit);
 			__set_bit(entry->sw.code, dev->swbit);
 			break;
@@ -209,8 +210,8 @@ int sparse_keymap_setup(struct input_dev *dev,
 
 	dev->keycode = map;
 	dev->keycodemax = map_size;
-	dev->getkeycode_new = sparse_keymap_getkeycode;
-	dev->setkeycode_new = sparse_keymap_setkeycode;
+	dev->getkeycode = sparse_keymap_getkeycode;
+	dev->setkeycode = sparse_keymap_setkeycode;
 
 	return 0;
 
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index fc381498b798..449c0a46dbac 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -193,16 +193,16 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
 			case HID_USAGE_X:
 				if (usage == WCM_DESKTOP) {
 					if (finger) {
-						features->device_type = BTN_TOOL_DOUBLETAP;
+						features->device_type = BTN_TOOL_FINGER;
 						if (features->type == TABLETPC2FG) {
 							/* need to reset back */
 							features->pktlen = WACOM_PKGLEN_TPC2FG;
-							features->device_type = BTN_TOOL_TRIPLETAP;
+							features->device_type = BTN_TOOL_DOUBLETAP;
 						}
 						if (features->type == BAMBOO_PT) {
 							/* need to reset back */
 							features->pktlen = WACOM_PKGLEN_BBTOUCH;
-							features->device_type = BTN_TOOL_TRIPLETAP;
+							features->device_type = BTN_TOOL_DOUBLETAP;
 							features->x_phy =
 								get_unaligned_le16(&report[i + 5]);
 							features->x_max =
@@ -241,11 +241,11 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
 			case HID_USAGE_Y:
 				if (usage == WCM_DESKTOP) {
 					if (finger) {
-						features->device_type = BTN_TOOL_DOUBLETAP;
+						features->device_type = BTN_TOOL_FINGER;
 						if (features->type == TABLETPC2FG) {
 							/* need to reset back */
 							features->pktlen = WACOM_PKGLEN_TPC2FG;
-							features->device_type = BTN_TOOL_TRIPLETAP;
+							features->device_type = BTN_TOOL_DOUBLETAP;
 							features->y_max =
 								get_unaligned_le16(&report[i + 3]);
 							features->y_phy =
@@ -254,7 +254,7 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
 						} else if (features->type == BAMBOO_PT) {
 							/* need to reset back */
 							features->pktlen = WACOM_PKGLEN_BBTOUCH;
-							features->device_type = BTN_TOOL_TRIPLETAP;
+							features->device_type = BTN_TOOL_DOUBLETAP;
 							features->y_phy =
 								get_unaligned_le16(&report[i + 3]);
 							features->y_max =
@@ -519,7 +519,7 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
 	/* Retrieve the physical and logical size for OEM devices */
 	error = wacom_retrieve_hid_descriptor(intf, features);
 	if (error)
-		goto fail2;
+		goto fail3;
 
 	wacom_setup_device_quirks(features);
 
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 518782999fea..5597637cfd41 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -675,169 +675,87 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
 	return 1;
 }
 
-
-static void wacom_tpc_finger_in(struct wacom_wac *wacom, char *data, int idx)
+static int wacom_tpc_mt_touch(struct wacom_wac *wacom)
 {
 	struct input_dev *input = wacom->input;
-	int finger = idx + 1;
-	int x = le16_to_cpup((__le16 *)&data[finger * 2]) & 0x7fff;
-	int y = le16_to_cpup((__le16 *)&data[4 + finger * 2]) & 0x7fff;
+	unsigned char *data = wacom->data;
+	int contact_with_no_pen_down_count = 0;
+	int i;
 
-	/*
-	 * Work around input core suppressing "duplicate" events since
-	 * we are abusing ABS_X/ABS_Y to transmit multi-finger data.
-	 * This should go away once we switch to true multitouch
-	 * protocol.
-	 */
-	if (wacom->last_finger != finger) {
-		if (x == input_abs_get_val(input, ABS_X))
-			x++;
+	for (i = 0; i < 2; i++) {
+		int p = data[1] & (1 << i);
+		bool touch = p && !wacom->shared->stylus_in_proximity;
+
+		input_mt_slot(input, i);
+		input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
+		if (touch) {
+			int x = le16_to_cpup((__le16 *)&data[i * 2 + 2]) & 0x7fff;
+			int y = le16_to_cpup((__le16 *)&data[i * 2 + 6]) & 0x7fff;
 
-		if (y == input_abs_get_val(input, ABS_Y))
-			y++;
+			input_report_abs(input, ABS_MT_POSITION_X, x);
+			input_report_abs(input, ABS_MT_POSITION_Y, y);
+			contact_with_no_pen_down_count++;
+		}
 	}
 
-	input_report_abs(input, ABS_X, x);
-	input_report_abs(input, ABS_Y, y);
-	input_report_abs(input, ABS_MISC, wacom->id[0]);
-	input_report_key(input, wacom->tool[finger], 1);
-	if (!idx)
-		input_report_key(input, BTN_TOUCH, 1);
-	input_event(input, EV_MSC, MSC_SERIAL, finger);
-	input_sync(input);
+	/* keep touch state for pen event */
+	wacom->shared->touch_down = (contact_with_no_pen_down_count > 0);
 
-	wacom->last_finger = finger;
-}
+	input_mt_report_pointer_emulation(input, true);
 
-static void wacom_tpc_touch_out(struct wacom_wac *wacom, int idx)
-{
-	struct input_dev *input = wacom->input;
-	int finger = idx + 1;
-
-	input_report_abs(input, ABS_X, 0);
-	input_report_abs(input, ABS_Y, 0);
-	input_report_abs(input, ABS_MISC, 0);
-	input_report_key(input, wacom->tool[finger], 0);
-	if (!idx)
-		input_report_key(input, BTN_TOUCH, 0);
-	input_event(input, EV_MSC, MSC_SERIAL, finger);
-	input_sync(input);
+	return 1;
 }
 
-static void wacom_tpc_touch_in(struct wacom_wac *wacom, size_t len)
+static int wacom_tpc_single_touch(struct wacom_wac *wacom, size_t len)
 {
 	char *data = wacom->data;
 	struct input_dev *input = wacom->input;
+	bool prox;
+	int x = 0, y = 0;
 
-	wacom->tool[1] = BTN_TOOL_DOUBLETAP;
-	wacom->id[0] = TOUCH_DEVICE_ID;
-	wacom->tool[2] = BTN_TOOL_TRIPLETAP;
-
-	if (len != WACOM_PKGLEN_TPC1FG) {
-
-		switch (data[0]) {
+	if (!wacom->shared->stylus_in_proximity) {
+		if (len == WACOM_PKGLEN_TPC1FG) {
+			prox = data[0] & 0x01;
+			x = get_unaligned_le16(&data[1]);
+			y = get_unaligned_le16(&data[3]);
+		} else { /* with capacity */
+			prox = data[1] & 0x01;
+			x = le16_to_cpup((__le16 *)&data[2]);
+			y = le16_to_cpup((__le16 *)&data[4]);
+		}
+	} else
+		/* force touch out when pen is in prox */
+		prox = 0;
 
-		case WACOM_REPORT_TPC1FG:
-			input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2]));
-			input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4]));
-			input_report_abs(input, ABS_PRESSURE, le16_to_cpup((__le16 *)&data[6]));
-			input_report_key(input, BTN_TOUCH, le16_to_cpup((__le16 *)&data[6]));
-			input_report_abs(input, ABS_MISC, wacom->id[0]);
-			input_report_key(input, wacom->tool[1], 1);
-			input_sync(input);
-			break;
+	if (prox) {
+		input_report_abs(input, ABS_X, x);
+		input_report_abs(input, ABS_Y, y);
+	}
+	input_report_key(input, BTN_TOUCH, prox);
 
-		case WACOM_REPORT_TPC2FG:
-			if (data[1] & 0x01)
-				wacom_tpc_finger_in(wacom, data, 0);
-			else if (wacom->id[1] & 0x01)
-				wacom_tpc_touch_out(wacom, 0);
+	/* keep touch state for pen events */
+	wacom->shared->touch_down = prox;
 
-			if (data[1] & 0x02)
-				wacom_tpc_finger_in(wacom, data, 1);
-			else if (wacom->id[1] & 0x02)
-				wacom_tpc_touch_out(wacom, 1);
-			break;
-		}
-	} else {
-		input_report_abs(input, ABS_X, get_unaligned_le16(&data[1]));
-		input_report_abs(input, ABS_Y, get_unaligned_le16(&data[3]));
-		input_report_key(input, BTN_TOUCH, 1);
-		input_report_abs(input, ABS_MISC, wacom->id[1]);
-		input_report_key(input, wacom->tool[1], 1);
-		input_sync(input);
-	}
+	return 1;
 }
 
-static int wacom_tpc_irq(struct wacom_wac *wacom, size_t len)
+static int wacom_tpc_pen(struct wacom_wac *wacom)
 {
 	struct wacom_features *features = &wacom->features;
 	char *data = wacom->data;
 	struct input_dev *input = wacom->input;
-	int prox = 0, pressure;
-	int retval = 0;
-
-	dbg("wacom_tpc_irq: received report #%d", data[0]);
-
-	if (len == WACOM_PKGLEN_TPC1FG ||		 /* single touch */
-	    data[0] == WACOM_REPORT_TPC1FG ||		 /* single touch */
-	    data[0] == WACOM_REPORT_TPC2FG) {		 /* 2FG touch */
-
-		if (wacom->shared->stylus_in_proximity) {
-			if (wacom->id[1] & 0x01)
-				wacom_tpc_touch_out(wacom, 0);
-
-			if (wacom->id[1] & 0x02)
-				wacom_tpc_touch_out(wacom, 1);
-
-			wacom->id[1] = 0;
-			return 0;
-		}
-
-		if (len == WACOM_PKGLEN_TPC1FG) {	/* with touch */
-			prox = data[0] & 0x01;
-		} else {  /* with capacity */
-			if (data[0] == WACOM_REPORT_TPC1FG)
-				/* single touch */
-				prox = data[1] & 0x01;
-			else
-				/* 2FG touch data */
-				prox = data[1] & 0x03;
-		}
+	int pressure;
+	bool prox = data[1] & 0x20;
 
-		if (prox) {
-			if (!wacom->id[1])
-				wacom->last_finger = 1;
-			wacom_tpc_touch_in(wacom, len);
-		} else {
-			if (data[0] == WACOM_REPORT_TPC2FG) {
-				/* 2FGT out-prox */
-				if (wacom->id[1] & 0x01)
-					wacom_tpc_touch_out(wacom, 0);
+	if (!wacom->shared->stylus_in_proximity) /* first in prox */
+		/* Going into proximity select tool */
+		wacom->tool[0] = (data[1] & 0x0c) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
 
-				if (wacom->id[1] & 0x02)
-					wacom_tpc_touch_out(wacom, 1);
-			} else
-				/* one finger touch */
-				wacom_tpc_touch_out(wacom, 0);
+	/* keep pen state for touch events */
+	wacom->shared->stylus_in_proximity = prox;
 
-			wacom->id[0] = 0;
-		}
-		/* keep prox bit to send proper out-prox event */
-		wacom->id[1] = prox;
-	} else if (data[0] == WACOM_REPORT_PENABLED) { /* Penabled */
-		prox = data[1] & 0x20;
-
-		if (!wacom->shared->stylus_in_proximity) { /* first in prox */
-			/* Going into proximity select tool */
-			wacom->tool[0] = (data[1] & 0x0c) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
-			if (wacom->tool[0] == BTN_TOOL_PEN)
-				wacom->id[0] = STYLUS_DEVICE_ID;
-			else
-				wacom->id[0] = ERASER_DEVICE_ID;
-
-			wacom->shared->stylus_in_proximity = true;
-		}
+	/* send pen events only when touch is up or forced out */
+	if (!wacom->shared->touch_down) {
 		input_report_key(input, BTN_STYLUS, data[1] & 0x02);
 		input_report_key(input, BTN_STYLUS2, data[1] & 0x10);
 		input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2]));
@@ -847,15 +765,27 @@ static int wacom_tpc_irq(struct wacom_wac *wacom, size_t len)
 			pressure = features->pressure_max + pressure + 1;
 		input_report_abs(input, ABS_PRESSURE, pressure);
 		input_report_key(input, BTN_TOUCH, data[1] & 0x05);
-		if (!prox) { /* out-prox */
-			wacom->id[0] = 0;
-			wacom->shared->stylus_in_proximity = false;
-		}
 		input_report_key(input, wacom->tool[0], prox);
-		input_report_abs(input, ABS_MISC, wacom->id[0]);
-		retval = 1;
+		return 1;
 	}
-	return retval;
+
+	return 0;
+}
+
+static int wacom_tpc_irq(struct wacom_wac *wacom, size_t len)
+{
+	char *data = wacom->data;
+
+	dbg("wacom_tpc_irq: received report #%d", data[0]);
+
+	if (len == WACOM_PKGLEN_TPC1FG || data[0] == WACOM_REPORT_TPC1FG)
+		return wacom_tpc_single_touch(wacom, len);
+	else if (data[0] == WACOM_REPORT_TPC2FG)
+		return wacom_tpc_mt_touch(wacom);
+	else if (data[0] == WACOM_REPORT_PENABLED)
+		return wacom_tpc_pen(wacom);
+
+	return 0;
 }
 
 static int wacom_bpt_touch(struct wacom_wac *wacom)
@@ -1078,7 +1008,7 @@ void wacom_setup_device_quirks(struct wacom_features *features)
 {
 
 	/* touch device found but size is not defined. use default */
-	if (features->device_type == BTN_TOOL_DOUBLETAP && !features->x_max) {
+	if (features->device_type == BTN_TOOL_FINGER && !features->x_max) {
 		features->x_max = 1023;
 		features->y_max = 1023;
 	}
@@ -1090,7 +1020,7 @@ void wacom_setup_device_quirks(struct wacom_features *features)
 
 	/* quirks for bamboo touch */
 	if (features->type == BAMBOO_PT &&
-	    features->device_type == BTN_TOOL_TRIPLETAP) {
+	    features->device_type == BTN_TOOL_DOUBLETAP) {
 		features->x_max <<= 5;
 		features->y_max <<= 5;
 		features->x_fuzz <<= 5;
@@ -1101,6 +1031,13 @@ void wacom_setup_device_quirks(struct wacom_features *features)
 	}
 }
 
+static unsigned int wacom_calculate_touch_res(unsigned int logical_max,
+					      unsigned int physical_max)
+{
+       /* Touch physical dimensions are in 100th of mm */
+       return (logical_max * 100) / physical_max;
+}
+
 void wacom_setup_input_capabilities(struct input_dev *input_dev,
 				    struct wacom_wac *wacom_wac)
 {
@@ -1219,23 +1156,30 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
 		break;
 
 	case TABLETPC2FG:
-		if (features->device_type == BTN_TOOL_TRIPLETAP) {
-			__set_bit(BTN_TOOL_TRIPLETAP, input_dev->keybit);
-			input_set_capability(input_dev, EV_MSC, MSC_SERIAL);
+		if (features->device_type == BTN_TOOL_DOUBLETAP) {
+
+			input_mt_init_slots(input_dev, 2);
+			input_set_abs_params(input_dev, ABS_MT_TOOL_TYPE,
+					0, MT_TOOL_MAX, 0, 0);
+			input_set_abs_params(input_dev, ABS_MT_POSITION_X,
+					0, features->x_max, 0, 0);
+			input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
+					0, features->y_max, 0, 0);
 		}
 		/* fall through */
 
 	case TABLETPC:
-		if (features->device_type == BTN_TOOL_DOUBLETAP ||
-		    features->device_type == BTN_TOOL_TRIPLETAP) {
-			input_set_abs_params(input_dev, ABS_RX, 0, features->x_phy, 0, 0);
-			input_set_abs_params(input_dev, ABS_RY, 0, features->y_phy, 0, 0);
-			__set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
-		}
+		__clear_bit(ABS_MISC, input_dev->absbit);
 
-		if (features->device_type != BTN_TOOL_PEN)
+		if (features->device_type != BTN_TOOL_PEN) {
+			input_abs_set_res(input_dev, ABS_X,
+				wacom_calculate_touch_res(features->x_max,
+							features->x_phy));
+			input_abs_set_res(input_dev, ABS_Y,
+				wacom_calculate_touch_res(features->y_max,
+							features->y_phy));
 			break;  /* no need to process stylus stuff */
-
+		}
 		/* fall through */
 
 	case PL:
@@ -1253,7 +1197,7 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
 	case BAMBOO_PT:
 		__clear_bit(ABS_MISC, input_dev->absbit);
 
-		if (features->device_type == BTN_TOOL_TRIPLETAP) {
+		if (features->device_type == BTN_TOOL_DOUBLETAP) {
 			__set_bit(BTN_LEFT, input_dev->keybit);
 			__set_bit(BTN_FORWARD, input_dev->keybit);
 			__set_bit(BTN_BACK, input_dev->keybit);
@@ -1272,6 +1216,12 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
 			input_set_abs_params(input_dev, ABS_MT_PRESSURE,
 					     0, features->pressure_max,
 					     features->pressure_fuzz, 0);
+			input_abs_set_res(input_dev, ABS_X,
+				wacom_calculate_touch_res(features->x_max,
+							features->x_phy));
+			input_abs_set_res(input_dev, ABS_Y,
+				wacom_calculate_touch_res(features->y_max,
+							features->y_phy));
 		} else if (features->device_type == BTN_TOOL_PEN) {
 			__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
 			__set_bit(BTN_TOOL_PEN, input_dev->keybit);
@@ -1426,6 +1376,10 @@ static struct wacom_features wacom_features_0xD3 =
 	{ "Wacom Bamboo 2FG 6x8", WACOM_PKGLEN_BBFUN,     21648, 13530, 1023, 63, BAMBOO_PT };
 static const struct wacom_features wacom_features_0xD4 =
 	{ "Wacom Bamboo Pen",     WACOM_PKGLEN_BBFUN,     14720,  9200,  255, 63, BAMBOO_PT };
+static struct wacom_features wacom_features_0xD6 =
+	{ "Wacom BambooPT 2FG 4x5", WACOM_PKGLEN_BBFUN,   14720,  9200, 1023, 63, BAMBOO_PT };
+static struct wacom_features wacom_features_0xD7 =
+	{ "Wacom BambooPT 2FG Small", WACOM_PKGLEN_BBFUN, 14720,  9200, 1023, 63, BAMBOO_PT };
 static struct wacom_features wacom_features_0xD8 =
 	{ "Wacom Bamboo Comic 2FG", WACOM_PKGLEN_BBFUN,   21648, 13530, 1023, 63, BAMBOO_PT };
 static struct wacom_features wacom_features_0xDA =
@@ -1507,6 +1461,8 @@ const struct usb_device_id wacom_ids[] = {
 	{ USB_DEVICE_WACOM(0xD2) },
 	{ USB_DEVICE_WACOM(0xD3) },
 	{ USB_DEVICE_WACOM(0xD4) },
+	{ USB_DEVICE_WACOM(0xD6) },
+	{ USB_DEVICE_WACOM(0xD7) },
 	{ USB_DEVICE_WACOM(0xD8) },
 	{ USB_DEVICE_WACOM(0xDA) },
 	{ USB_DEVICE_WACOM(0xDB) },
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index b1310ec9720c..835f756b150c 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -88,15 +88,15 @@ struct wacom_features {
 
 struct wacom_shared {
 	bool stylus_in_proximity;
+	bool touch_down;
 };
 
 struct wacom_wac {
 	char name[64];
 	unsigned char *data;
-	int tool[3];
-	int id[3];
+	int tool[2];
+	int id[2];
 	__u32 serial[2];
-	int last_finger;
 	struct wacom_features features;
 	struct wacom_shared *shared;
 	struct input_dev *input;
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 61834ae282e1..112ec55f2939 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -86,6 +86,18 @@ config TOUCHSCREEN_AD7879_SPI
 	  To compile this driver as a module, choose M here: the
 	  module will be called ad7879-spi.
 
+config TOUCHSCREEN_ATMEL_MXT
+	tristate "Atmel mXT I2C Touchscreen"
+	depends on I2C
+	help
+	  Say Y here if you have Atmel mXT series I2C touchscreen,
+	  such as AT42QT602240/ATMXT224, connected to your system.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called atmel_mxt_ts.
+
 config TOUCHSCREEN_BITSY
 	tristate "Compaq iPAQ H3600 (Bitsy) touchscreen"
 	depends on SA1100_BITSY
@@ -339,18 +351,6 @@ config TOUCHSCREEN_PENMOUNT
 	  To compile this driver as a module, choose M here: the
 	  module will be called penmount.
 
-config TOUCHSCREEN_QT602240
-	tristate "QT602240 I2C Touchscreen"
-	depends on I2C
-	help
-	  Say Y here if you have the AT42QT602240/ATMXT224 I2C touchscreen
-	  connected to your system.
-
-	  If unsure, say N.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called qt602240_ts.
-
 config TOUCHSCREEN_MIGOR
 	tristate "Renesas MIGO-R touchscreen"
 	depends on SH_MIGOR && I2C
@@ -423,6 +423,16 @@ config TOUCHSCREEN_UCB1400
 	  To compile this driver as a module, choose M here: the
 	  module will be called ucb1400_ts.
 
+config TOUCHSCREEN_WM831X
+	tristate "Support for WM831x touchscreen controllers"
+	depends on MFD_WM831X
+	help
+	  This enables support for the touchscreen controller on the WM831x
+	  series of PMICs.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called wm831x-ts.
+
 config TOUCHSCREEN_WM97XX
 	tristate "Support for WM97xx AC97 touchscreen controllers"
 	depends on AC97_BUS
@@ -629,6 +639,17 @@ config TOUCHSCREEN_TOUCHIT213
 	  To compile this driver as a module, choose M here: the
 	  module will be called touchit213.
 
+config TOUCHSCREEN_TSC2005
+        tristate "TSC2005 based touchscreens"
+        depends on SPI_MASTER
+        help
+          Say Y here if you have a TSC2005 based touchscreen.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called tsc2005.
+
 config TOUCHSCREEN_TSC2007
 	tristate "TSC2007 based touchscreens"
 	depends on I2C
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 718bcc814952..ca94098d4c92 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_TOUCHSCREEN_AD7879)	+= ad7879.o
 obj-$(CONFIG_TOUCHSCREEN_AD7879_I2C)	+= ad7879-i2c.o
 obj-$(CONFIG_TOUCHSCREEN_AD7879_SPI)	+= ad7879-spi.o
 obj-$(CONFIG_TOUCHSCREEN_ADS7846)	+= ads7846.o
+obj-$(CONFIG_TOUCHSCREEN_ATMEL_MXT)	+= atmel_mxt_ts.o
 obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC)	+= atmel_tsadcc.o
 obj-$(CONFIG_TOUCHSCREEN_BITSY)		+= h3600_ts_input.o
 obj-$(CONFIG_TOUCHSCREEN_BU21013)       += bu21013_ts.o
@@ -37,7 +38,6 @@ obj-$(CONFIG_TOUCHSCREEN_HTCPEN)	+= htcpen.o
 obj-$(CONFIG_TOUCHSCREEN_USB_COMPOSITE)	+= usbtouchscreen.o
 obj-$(CONFIG_TOUCHSCREEN_PCAP)		+= pcap_ts.o
 obj-$(CONFIG_TOUCHSCREEN_PENMOUNT)	+= penmount.o
-obj-$(CONFIG_TOUCHSCREEN_QT602240)	+= qt602240_ts.o
 obj-$(CONFIG_TOUCHSCREEN_S3C2410)	+= s3c2410_ts.o
 obj-$(CONFIG_TOUCHSCREEN_ST1232)	+= st1232.o
 obj-$(CONFIG_TOUCHSCREEN_STMPE)		+= stmpe-ts.o
@@ -45,9 +45,11 @@ obj-$(CONFIG_TOUCHSCREEN_TNETV107X)	+= tnetv107x-ts.o
 obj-$(CONFIG_TOUCHSCREEN_TOUCHIT213)	+= touchit213.o
 obj-$(CONFIG_TOUCHSCREEN_TOUCHRIGHT)	+= touchright.o
 obj-$(CONFIG_TOUCHSCREEN_TOUCHWIN)	+= touchwin.o
+obj-$(CONFIG_TOUCHSCREEN_TSC2005)	+= tsc2005.o
 obj-$(CONFIG_TOUCHSCREEN_TSC2007)	+= tsc2007.o
 obj-$(CONFIG_TOUCHSCREEN_UCB1400)	+= ucb1400_ts.o
 obj-$(CONFIG_TOUCHSCREEN_WACOM_W8001)	+= wacom_w8001.o
+obj-$(CONFIG_TOUCHSCREEN_WM831X)	+= wm831x-ts.o
 obj-$(CONFIG_TOUCHSCREEN_WM97XX)	+= wm97xx-ts.o
 wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9705)	+= wm9705.o
 wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9712)	+= wm9712.o
diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
index a1952fcc083e..714d4e0f9f95 100644
--- a/drivers/input/touchscreen/ad7877.c
+++ b/drivers/input/touchscreen/ad7877.c
@@ -41,6 +41,7 @@
 #include <linux/delay.h>
 #include <linux/input.h>
 #include <linux/interrupt.h>
+#include <linux/pm.h>
 #include <linux/slab.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/ad7877.h>
@@ -826,39 +827,37 @@ static int __devexit ad7877_remove(struct spi_device *spi)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int ad7877_suspend(struct spi_device *spi, pm_message_t message)
+#ifdef CONFIG_PM_SLEEP
+static int ad7877_suspend(struct device *dev)
 {
-	struct ad7877 *ts = dev_get_drvdata(&spi->dev);
+	struct ad7877 *ts = dev_get_drvdata(dev);
 
 	ad7877_disable(ts);
 
 	return 0;
 }
 
-static int ad7877_resume(struct spi_device *spi)
+static int ad7877_resume(struct device *dev)
 {
-	struct ad7877 *ts = dev_get_drvdata(&spi->dev);
+	struct ad7877 *ts = dev_get_drvdata(dev);
 
 	ad7877_enable(ts);
 
 	return 0;
 }
-#else
-#define ad7877_suspend NULL
-#define ad7877_resume  NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(ad7877_pm, ad7877_suspend, ad7877_resume);
+
 static struct spi_driver ad7877_driver = {
 	.driver = {
 		.name	= "ad7877",
 		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
+		.pm	= &ad7877_pm,
 	},
 	.probe		= ad7877_probe,
 	.remove		= __devexit_p(ad7877_remove),
-	.suspend	= ad7877_suspend,
-	.resume		= ad7877_resume,
 };
 
 static int __init ad7877_init(void)
diff --git a/drivers/input/touchscreen/ad7879-spi.c b/drivers/input/touchscreen/ad7879-spi.c
index 59c6e68c4325..ddf732f3cafc 100644
--- a/drivers/input/touchscreen/ad7879-spi.c
+++ b/drivers/input/touchscreen/ad7879-spi.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/input.h>	/* BUS_SPI */
+#include <linux/pm.h>
 #include <linux/spi/spi.h>
 
 #include "ad7879.h"
@@ -20,9 +21,10 @@
 #define AD7879_WRITECMD(reg) (AD7879_CMD(reg))
 #define AD7879_READCMD(reg)  (AD7879_CMD(reg) | AD7879_CMD_READ)
 
-#ifdef CONFIG_PM
-static int ad7879_spi_suspend(struct spi_device *spi, pm_message_t message)
+#ifdef CONFIG_PM_SLEEP
+static int ad7879_spi_suspend(struct device *dev)
 {
+	struct spi_device *spi = to_spi_device(dev);
 	struct ad7879 *ts = spi_get_drvdata(spi);
 
 	ad7879_suspend(ts);
@@ -30,19 +32,19 @@ static int ad7879_spi_suspend(struct spi_device *spi, pm_message_t message)
 	return 0;
 }
 
-static int ad7879_spi_resume(struct spi_device *spi)
+static int ad7879_spi_resume(struct device *dev)
 {
+	struct spi_device *spi = to_spi_device(dev);
 	struct ad7879 *ts = spi_get_drvdata(spi);
 
 	ad7879_resume(ts);
 
 	return 0;
 }
-#else
-# define ad7879_spi_suspend NULL
-# define ad7879_spi_resume  NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(ad7879_spi_pm, ad7879_spi_suspend, ad7879_spi_resume);
+
 /*
  * ad7879_read/write are only used for initial setup and for sysfs controls.
  * The main traffic is done in ad7879_collect().
@@ -173,11 +175,10 @@ static struct spi_driver ad7879_spi_driver = {
 		.name	= "ad7879",
 		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
+		.pm	= &ad7879_spi_pm,
 	},
 	.probe		= ad7879_spi_probe,
 	.remove		= __devexit_p(ad7879_spi_remove),
-	.suspend	= ad7879_spi_suspend,
-	.resume		= ad7879_spi_resume,
 };
 
 static int __init ad7879_spi_init(void)
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 14ea54b78e46..c24946f51256 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -26,6 +26,7 @@
 #include <linux/input.h>
 #include <linux/interrupt.h>
 #include <linux/slab.h>
+#include <linux/pm.h>
 #include <linux/gpio.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/ads7846.h>
@@ -892,9 +893,10 @@ static irqreturn_t ads7846_irq(int irq, void *handle)
 	return IRQ_HANDLED;
 }
 
-static int ads7846_suspend(struct spi_device *spi, pm_message_t message)
+#ifdef CONFIG_PM_SLEEP
+static int ads7846_suspend(struct device *dev)
 {
-	struct ads7846 *ts = dev_get_drvdata(&spi->dev);
+	struct ads7846 *ts = dev_get_drvdata(dev);
 
 	mutex_lock(&ts->lock);
 
@@ -914,9 +916,9 @@ static int ads7846_suspend(struct spi_device *spi, pm_message_t message)
 	return 0;
 }
 
-static int ads7846_resume(struct spi_device *spi)
+static int ads7846_resume(struct device *dev)
 {
-	struct ads7846 *ts = dev_get_drvdata(&spi->dev);
+	struct ads7846 *ts = dev_get_drvdata(dev);
 
 	mutex_lock(&ts->lock);
 
@@ -935,34 +937,38 @@ static int ads7846_resume(struct spi_device *spi)
 
 	return 0;
 }
+#endif
+
+static SIMPLE_DEV_PM_OPS(ads7846_pm, ads7846_suspend, ads7846_resume);
 
 static int __devinit ads7846_setup_pendown(struct spi_device *spi, struct ads7846 *ts)
 {
 	struct ads7846_platform_data *pdata = spi->dev.platform_data;
 	int err;
 
-	/* REVISIT when the irq can be triggered active-low, or if for some
+	/*
+	 * REVISIT when the irq can be triggered active-low, or if for some
 	 * reason the touchscreen isn't hooked up, we don't need to access
 	 * the pendown state.
 	 */
-	if (!pdata->get_pendown_state && !gpio_is_valid(pdata->gpio_pendown)) {
-		dev_err(&spi->dev, "no get_pendown_state nor gpio_pendown?\n");
-		return -EINVAL;
-	}
 
 	if (pdata->get_pendown_state) {
 		ts->get_pendown_state = pdata->get_pendown_state;
-		return 0;
-	}
+	} else if (gpio_is_valid(pdata->gpio_pendown)) {
 
-	err = gpio_request(pdata->gpio_pendown, "ads7846_pendown");
-	if (err) {
-		dev_err(&spi->dev, "failed to request pendown GPIO%d\n",
-			pdata->gpio_pendown);
-		return err;
-	}
+		err = gpio_request(pdata->gpio_pendown, "ads7846_pendown");
+		if (err) {
+			dev_err(&spi->dev, "failed to request pendown GPIO%d\n",
+				pdata->gpio_pendown);
+			return err;
+		}
+
+		ts->gpio_pendown = pdata->gpio_pendown;
 
-	ts->gpio_pendown = pdata->gpio_pendown;
+	} else {
+		dev_err(&spi->dev, "no get_pendown_state nor gpio_pendown?\n");
+		return -EINVAL;
+	}
 
 	return 0;
 }
@@ -1353,7 +1359,7 @@ static int __devinit ads7846_probe(struct spi_device *spi)
  err_put_regulator:
 	regulator_put(ts->reg);
  err_free_gpio:
-	if (ts->gpio_pendown != -1)
+	if (!ts->get_pendown_state)
 		gpio_free(ts->gpio_pendown);
  err_cleanup_filter:
 	if (ts->filter_cleanup)
@@ -1383,8 +1389,13 @@ static int __devexit ads7846_remove(struct spi_device *spi)
 	regulator_disable(ts->reg);
 	regulator_put(ts->reg);
 
-	if (ts->gpio_pendown != -1)
+	if (!ts->get_pendown_state) {
+		/*
+		 * If we are not using specialized pendown method we must
+		 * have been relying on gpio we set up ourselves.
+		 */
 		gpio_free(ts->gpio_pendown);
+	}
 
 	if (ts->filter_cleanup)
 		ts->filter_cleanup(ts->filter_data);
@@ -1402,11 +1413,10 @@ static struct spi_driver ads7846_driver = {
 		.name	= "ads7846",
 		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
+		.pm	= &ads7846_pm,
 	},
 	.probe		= ads7846_probe,
 	.remove		= __devexit_p(ads7846_remove),
-	.suspend	= ads7846_suspend,
-	.resume		= ads7846_resume,
 };
 
 static int __init ads7846_init(void)
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
new file mode 100644
index 000000000000..4012436633b1
--- /dev/null
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -0,0 +1,1211 @@
+/*
+ * Atmel maXTouch Touchscreen driver
+ *
+ * Copyright (C) 2010 Samsung Electronics Co.Ltd
+ * Author: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/i2c.h>
+#include <linux/i2c/atmel_mxt_ts.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+
+/* Version */
+#define MXT_VER_20		20
+#define MXT_VER_21		21
+#define MXT_VER_22		22
+
+/* Slave addresses */
+#define MXT_APP_LOW		0x4a
+#define MXT_APP_HIGH		0x4b
+#define MXT_BOOT_LOW		0x24
+#define MXT_BOOT_HIGH		0x25
+
+/* Firmware */
+#define MXT_FW_NAME		"maxtouch.fw"
+
+/* Registers */
+#define MXT_FAMILY_ID		0x00
+#define MXT_VARIANT_ID		0x01
+#define MXT_VERSION		0x02
+#define MXT_BUILD		0x03
+#define MXT_MATRIX_X_SIZE	0x04
+#define MXT_MATRIX_Y_SIZE	0x05
+#define MXT_OBJECT_NUM		0x06
+#define MXT_OBJECT_START	0x07
+
+#define MXT_OBJECT_SIZE		6
+
+/* Object types */
+#define MXT_DEBUG_DIAGNOSTIC	37
+#define MXT_GEN_MESSAGE		5
+#define MXT_GEN_COMMAND		6
+#define MXT_GEN_POWER		7
+#define MXT_GEN_ACQUIRE		8
+#define MXT_TOUCH_MULTI		9
+#define MXT_TOUCH_KEYARRAY	15
+#define MXT_TOUCH_PROXIMITY	23
+#define MXT_PROCI_GRIPFACE	20
+#define MXT_PROCG_NOISE		22
+#define MXT_PROCI_ONETOUCH	24
+#define MXT_PROCI_TWOTOUCH	27
+#define MXT_PROCI_GRIP		40
+#define MXT_PROCI_PALM		41
+#define MXT_SPT_COMMSCONFIG	18
+#define MXT_SPT_GPIOPWM		19
+#define MXT_SPT_SELFTEST	25
+#define MXT_SPT_CTECONFIG	28
+#define MXT_SPT_USERDATA	38
+#define MXT_SPT_DIGITIZER	43
+#define MXT_SPT_MESSAGECOUNT	44
+
+/* MXT_GEN_COMMAND field */
+#define MXT_COMMAND_RESET	0
+#define MXT_COMMAND_BACKUPNV	1
+#define MXT_COMMAND_CALIBRATE	2
+#define MXT_COMMAND_REPORTALL	3
+#define MXT_COMMAND_DIAGNOSTIC	5
+
+/* MXT_GEN_POWER field */
+#define MXT_POWER_IDLEACQINT	0
+#define MXT_POWER_ACTVACQINT	1
+#define MXT_POWER_ACTV2IDLETO	2
+
+/* MXT_GEN_ACQUIRE field */
+#define MXT_ACQUIRE_CHRGTIME	0
+#define MXT_ACQUIRE_TCHDRIFT	2
+#define MXT_ACQUIRE_DRIFTST	3
+#define MXT_ACQUIRE_TCHAUTOCAL	4
+#define MXT_ACQUIRE_SYNC	5
+#define MXT_ACQUIRE_ATCHCALST	6
+#define MXT_ACQUIRE_ATCHCALSTHR	7
+
+/* MXT_TOUCH_MULTI field */
+#define MXT_TOUCH_CTRL		0
+#define MXT_TOUCH_XORIGIN	1
+#define MXT_TOUCH_YORIGIN	2
+#define MXT_TOUCH_XSIZE		3
+#define MXT_TOUCH_YSIZE		4
+#define MXT_TOUCH_BLEN		6
+#define MXT_TOUCH_TCHTHR	7
+#define MXT_TOUCH_TCHDI		8
+#define MXT_TOUCH_ORIENT	9
+#define MXT_TOUCH_MOVHYSTI	11
+#define MXT_TOUCH_MOVHYSTN	12
+#define MXT_TOUCH_NUMTOUCH	14
+#define MXT_TOUCH_MRGHYST	15
+#define MXT_TOUCH_MRGTHR	16
+#define MXT_TOUCH_AMPHYST	17
+#define MXT_TOUCH_XRANGE_LSB	18
+#define MXT_TOUCH_XRANGE_MSB	19
+#define MXT_TOUCH_YRANGE_LSB	20
+#define MXT_TOUCH_YRANGE_MSB	21
+#define MXT_TOUCH_XLOCLIP	22
+#define MXT_TOUCH_XHICLIP	23
+#define MXT_TOUCH_YLOCLIP	24
+#define MXT_TOUCH_YHICLIP	25
+#define MXT_TOUCH_XEDGECTRL	26
+#define MXT_TOUCH_XEDGEDIST	27
+#define MXT_TOUCH_YEDGECTRL	28
+#define MXT_TOUCH_YEDGEDIST	29
+#define MXT_TOUCH_JUMPLIMIT	30
+
+/* MXT_PROCI_GRIPFACE field */
+#define MXT_GRIPFACE_CTRL	0
+#define MXT_GRIPFACE_XLOGRIP	1
+#define MXT_GRIPFACE_XHIGRIP	2
+#define MXT_GRIPFACE_YLOGRIP	3
+#define MXT_GRIPFACE_YHIGRIP	4
+#define MXT_GRIPFACE_MAXTCHS	5
+#define MXT_GRIPFACE_SZTHR1	7
+#define MXT_GRIPFACE_SZTHR2	8
+#define MXT_GRIPFACE_SHPTHR1	9
+#define MXT_GRIPFACE_SHPTHR2	10
+#define MXT_GRIPFACE_SUPEXTTO	11
+
+/* MXT_PROCI_NOISE field */
+#define MXT_NOISE_CTRL		0
+#define MXT_NOISE_OUTFLEN	1
+#define MXT_NOISE_GCAFUL_LSB	3
+#define MXT_NOISE_GCAFUL_MSB	4
+#define MXT_NOISE_GCAFLL_LSB	5
+#define MXT_NOISE_GCAFLL_MSB	6
+#define MXT_NOISE_ACTVGCAFVALID	7
+#define MXT_NOISE_NOISETHR	8
+#define MXT_NOISE_FREQHOPSCALE	10
+#define MXT_NOISE_FREQ0		11
+#define MXT_NOISE_FREQ1		12
+#define MXT_NOISE_FREQ2		13
+#define MXT_NOISE_FREQ3		14
+#define MXT_NOISE_FREQ4		15
+#define MXT_NOISE_IDLEGCAFVALID	16
+
+/* MXT_SPT_COMMSCONFIG */
+#define MXT_COMMS_CTRL		0
+#define MXT_COMMS_CMD		1
+
+/* MXT_SPT_CTECONFIG field */
+#define MXT_CTE_CTRL		0
+#define MXT_CTE_CMD		1
+#define MXT_CTE_MODE		2
+#define MXT_CTE_IDLEGCAFDEPTH	3
+#define MXT_CTE_ACTVGCAFDEPTH	4
+#define MXT_CTE_VOLTAGE		5
+
+#define MXT_VOLTAGE_DEFAULT	2700000
+#define MXT_VOLTAGE_STEP	10000
+
+/* Define for MXT_GEN_COMMAND */
+#define MXT_BOOT_VALUE		0xa5
+#define MXT_BACKUP_VALUE	0x55
+#define MXT_BACKUP_TIME		25	/* msec */
+#define MXT_RESET_TIME		65	/* msec */
+
+#define MXT_FWRESET_TIME	175	/* msec */
+
+/* Command to unlock bootloader */
+#define MXT_UNLOCK_CMD_MSB	0xaa
+#define MXT_UNLOCK_CMD_LSB	0xdc
+
+/* Bootloader mode status */
+#define MXT_WAITING_BOOTLOAD_CMD	0xc0	/* valid 7 6 bit only */
+#define MXT_WAITING_FRAME_DATA	0x80	/* valid 7 6 bit only */
+#define MXT_FRAME_CRC_CHECK	0x02
+#define MXT_FRAME_CRC_FAIL	0x03
+#define MXT_FRAME_CRC_PASS	0x04
+#define MXT_APP_CRC_FAIL	0x40	/* valid 7 8 bit only */
+#define MXT_BOOT_STATUS_MASK	0x3f
+
+/* Touch status */
+#define MXT_SUPPRESS		(1 << 1)
+#define MXT_AMP			(1 << 2)
+#define MXT_VECTOR		(1 << 3)
+#define MXT_MOVE		(1 << 4)
+#define MXT_RELEASE		(1 << 5)
+#define MXT_PRESS		(1 << 6)
+#define MXT_DETECT		(1 << 7)
+
+/* Touchscreen absolute values */
+#define MXT_MAX_XC		0x3ff
+#define MXT_MAX_YC		0x3ff
+#define MXT_MAX_AREA		0xff
+
+#define MXT_MAX_FINGER		10
+
+struct mxt_info {
+	u8 family_id;
+	u8 variant_id;
+	u8 version;
+	u8 build;
+	u8 matrix_xsize;
+	u8 matrix_ysize;
+	u8 object_num;
+};
+
+struct mxt_object {
+	u8 type;
+	u16 start_address;
+	u8 size;
+	u8 instances;
+	u8 num_report_ids;
+
+	/* to map object and message */
+	u8 max_reportid;
+};
+
+struct mxt_message {
+	u8 reportid;
+	u8 message[7];
+	u8 checksum;
+};
+
+struct mxt_finger {
+	int status;
+	int x;
+	int y;
+	int area;
+};
+
+/* Each client has this additional data */
+struct mxt_data {
+	struct i2c_client *client;
+	struct input_dev *input_dev;
+	const struct mxt_platform_data *pdata;
+	struct mxt_object *object_table;
+	struct mxt_info info;
+	struct mxt_finger finger[MXT_MAX_FINGER];
+	unsigned int irq;
+};
+
+static bool mxt_object_readable(unsigned int type)
+{
+	switch (type) {
+	case MXT_GEN_MESSAGE:
+	case MXT_GEN_COMMAND:
+	case MXT_GEN_POWER:
+	case MXT_GEN_ACQUIRE:
+	case MXT_TOUCH_MULTI:
+	case MXT_TOUCH_KEYARRAY:
+	case MXT_TOUCH_PROXIMITY:
+	case MXT_PROCI_GRIPFACE:
+	case MXT_PROCG_NOISE:
+	case MXT_PROCI_ONETOUCH:
+	case MXT_PROCI_TWOTOUCH:
+	case MXT_PROCI_GRIP:
+	case MXT_PROCI_PALM:
+	case MXT_SPT_COMMSCONFIG:
+	case MXT_SPT_GPIOPWM:
+	case MXT_SPT_SELFTEST:
+	case MXT_SPT_CTECONFIG:
+	case MXT_SPT_USERDATA:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool mxt_object_writable(unsigned int type)
+{
+	switch (type) {
+	case MXT_GEN_COMMAND:
+	case MXT_GEN_POWER:
+	case MXT_GEN_ACQUIRE:
+	case MXT_TOUCH_MULTI:
+	case MXT_TOUCH_KEYARRAY:
+	case MXT_TOUCH_PROXIMITY:
+	case MXT_PROCI_GRIPFACE:
+	case MXT_PROCG_NOISE:
+	case MXT_PROCI_ONETOUCH:
+	case MXT_PROCI_TWOTOUCH:
+	case MXT_PROCI_GRIP:
+	case MXT_PROCI_PALM:
+	case MXT_SPT_GPIOPWM:
+	case MXT_SPT_SELFTEST:
+	case MXT_SPT_CTECONFIG:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static void mxt_dump_message(struct device *dev,
+				  struct mxt_message *message)
+{
+	dev_dbg(dev, "reportid:\t0x%x\n", message->reportid);
+	dev_dbg(dev, "message1:\t0x%x\n", message->message[0]);
+	dev_dbg(dev, "message2:\t0x%x\n", message->message[1]);
+	dev_dbg(dev, "message3:\t0x%x\n", message->message[2]);
+	dev_dbg(dev, "message4:\t0x%x\n", message->message[3]);
+	dev_dbg(dev, "message5:\t0x%x\n", message->message[4]);
+	dev_dbg(dev, "message6:\t0x%x\n", message->message[5]);
+	dev_dbg(dev, "message7:\t0x%x\n", message->message[6]);
+	dev_dbg(dev, "checksum:\t0x%x\n", message->checksum);
+}
+
+static int mxt_check_bootloader(struct i2c_client *client,
+				     unsigned int state)
+{
+	u8 val;
+
+recheck:
+	if (i2c_master_recv(client, &val, 1) != 1) {
+		dev_err(&client->dev, "%s: i2c recv failed\n", __func__);
+		return -EIO;
+	}
+
+	switch (state) {
+	case MXT_WAITING_BOOTLOAD_CMD:
+	case MXT_WAITING_FRAME_DATA:
+		val &= ~MXT_BOOT_STATUS_MASK;
+		break;
+	case MXT_FRAME_CRC_PASS:
+		if (val == MXT_FRAME_CRC_CHECK)
+			goto recheck;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (val != state) {
+		dev_err(&client->dev, "Unvalid bootloader mode state\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int mxt_unlock_bootloader(struct i2c_client *client)
+{
+	u8 buf[2];
+
+	buf[0] = MXT_UNLOCK_CMD_LSB;
+	buf[1] = MXT_UNLOCK_CMD_MSB;
+
+	if (i2c_master_send(client, buf, 2) != 2) {
+		dev_err(&client->dev, "%s: i2c send failed\n", __func__);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int mxt_fw_write(struct i2c_client *client,
+			     const u8 *data, unsigned int frame_size)
+{
+	if (i2c_master_send(client, data, frame_size) != frame_size) {
+		dev_err(&client->dev, "%s: i2c send failed\n", __func__);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int __mxt_read_reg(struct i2c_client *client,
+			       u16 reg, u16 len, void *val)
+{
+	struct i2c_msg xfer[2];
+	u8 buf[2];
+
+	buf[0] = reg & 0xff;
+	buf[1] = (reg >> 8) & 0xff;
+
+	/* Write register */
+	xfer[0].addr = client->addr;
+	xfer[0].flags = 0;
+	xfer[0].len = 2;
+	xfer[0].buf = buf;
+
+	/* Read data */
+	xfer[1].addr = client->addr;
+	xfer[1].flags = I2C_M_RD;
+	xfer[1].len = len;
+	xfer[1].buf = val;
+
+	if (i2c_transfer(client->adapter, xfer, 2) != 2) {
+		dev_err(&client->dev, "%s: i2c transfer failed\n", __func__);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int mxt_read_reg(struct i2c_client *client, u16 reg, u8 *val)
+{
+	return __mxt_read_reg(client, reg, 1, val);
+}
+
+static int mxt_write_reg(struct i2c_client *client, u16 reg, u8 val)
+{
+	u8 buf[3];
+
+	buf[0] = reg & 0xff;
+	buf[1] = (reg >> 8) & 0xff;
+	buf[2] = val;
+
+	if (i2c_master_send(client, buf, 3) != 3) {
+		dev_err(&client->dev, "%s: i2c send failed\n", __func__);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int mxt_read_object_table(struct i2c_client *client,
+				      u16 reg, u8 *object_buf)
+{
+	return __mxt_read_reg(client, reg, MXT_OBJECT_SIZE,
+				   object_buf);
+}
+
+static struct mxt_object *
+mxt_get_object(struct mxt_data *data, u8 type)
+{
+	struct mxt_object *object;
+	int i;
+
+	for (i = 0; i < data->info.object_num; i++) {
+		object = data->object_table + i;
+		if (object->type == type)
+			return object;
+	}
+
+	dev_err(&data->client->dev, "Invalid object type\n");
+	return NULL;
+}
+
+static int mxt_read_message(struct mxt_data *data,
+				 struct mxt_message *message)
+{
+	struct mxt_object *object;
+	u16 reg;
+
+	object = mxt_get_object(data, MXT_GEN_MESSAGE);
+	if (!object)
+		return -EINVAL;
+
+	reg = object->start_address;
+	return __mxt_read_reg(data->client, reg,
+			sizeof(struct mxt_message), message);
+}
+
+static int mxt_read_object(struct mxt_data *data,
+				u8 type, u8 offset, u8 *val)
+{
+	struct mxt_object *object;
+	u16 reg;
+
+	object = mxt_get_object(data, type);
+	if (!object)
+		return -EINVAL;
+
+	reg = object->start_address;
+	return __mxt_read_reg(data->client, reg + offset, 1, val);
+}
+
+static int mxt_write_object(struct mxt_data *data,
+				 u8 type, u8 offset, u8 val)
+{
+	struct mxt_object *object;
+	u16 reg;
+
+	object = mxt_get_object(data, type);
+	if (!object)
+		return -EINVAL;
+
+	reg = object->start_address;
+	return mxt_write_reg(data->client, reg + offset, val);
+}
+
+static void mxt_input_report(struct mxt_data *data, int single_id)
+{
+	struct mxt_finger *finger = data->finger;
+	struct input_dev *input_dev = data->input_dev;
+	int status = finger[single_id].status;
+	int finger_num = 0;
+	int id;
+
+	for (id = 0; id < MXT_MAX_FINGER; id++) {
+		if (!finger[id].status)
+			continue;
+
+		input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR,
+				finger[id].status != MXT_RELEASE ?
+				finger[id].area : 0);
+		input_report_abs(input_dev, ABS_MT_POSITION_X,
+				finger[id].x);
+		input_report_abs(input_dev, ABS_MT_POSITION_Y,
+				finger[id].y);
+		input_mt_sync(input_dev);
+
+		if (finger[id].status == MXT_RELEASE)
+			finger[id].status = 0;
+		else
+			finger_num++;
+	}
+
+	input_report_key(input_dev, BTN_TOUCH, finger_num > 0);
+
+	if (status != MXT_RELEASE) {
+		input_report_abs(input_dev, ABS_X, finger[single_id].x);
+		input_report_abs(input_dev, ABS_Y, finger[single_id].y);
+	}
+
+	input_sync(input_dev);
+}
+
+static void mxt_input_touchevent(struct mxt_data *data,
+				      struct mxt_message *message, int id)
+{
+	struct mxt_finger *finger = data->finger;
+	struct device *dev = &data->client->dev;
+	u8 status = message->message[0];
+	int x;
+	int y;
+	int area;
+
+	/* Check the touch is present on the screen */
+	if (!(status & MXT_DETECT)) {
+		if (status & MXT_RELEASE) {
+			dev_dbg(dev, "[%d] released\n", id);
+
+			finger[id].status = MXT_RELEASE;
+			mxt_input_report(data, id);
+		}
+		return;
+	}
+
+	/* Check only AMP detection */
+	if (!(status & (MXT_PRESS | MXT_MOVE)))
+		return;
+
+	x = (message->message[1] << 2) | ((message->message[3] & ~0x3f) >> 6);
+	y = (message->message[2] << 2) | ((message->message[3] & ~0xf3) >> 2);
+	area = message->message[4];
+
+	dev_dbg(dev, "[%d] %s x: %d, y: %d, area: %d\n", id,
+		status & MXT_MOVE ? "moved" : "pressed",
+		x, y, area);
+
+	finger[id].status = status & MXT_MOVE ?
+				MXT_MOVE : MXT_PRESS;
+	finger[id].x = x;
+	finger[id].y = y;
+	finger[id].area = area;
+
+	mxt_input_report(data, id);
+}
+
+static irqreturn_t mxt_interrupt(int irq, void *dev_id)
+{
+	struct mxt_data *data = dev_id;
+	struct mxt_message message;
+	struct mxt_object *object;
+	struct device *dev = &data->client->dev;
+	int id;
+	u8 reportid;
+	u8 max_reportid;
+	u8 min_reportid;
+
+	do {
+		if (mxt_read_message(data, &message)) {
+			dev_err(dev, "Failed to read message\n");
+			goto end;
+		}
+
+		reportid = message.reportid;
+
+		/* whether reportid is thing of MXT_TOUCH_MULTI */
+		object = mxt_get_object(data, MXT_TOUCH_MULTI);
+		if (!object)
+			goto end;
+
+		max_reportid = object->max_reportid;
+		min_reportid = max_reportid - object->num_report_ids + 1;
+		id = reportid - min_reportid;
+
+		if (reportid >= min_reportid && reportid <= max_reportid)
+			mxt_input_touchevent(data, &message, id);
+		else
+			mxt_dump_message(dev, &message);
+	} while (reportid != 0xff);
+
+end:
+	return IRQ_HANDLED;
+}
+
+static int mxt_check_reg_init(struct mxt_data *data)
+{
+	const struct mxt_platform_data *pdata = data->pdata;
+	struct mxt_object *object;
+	struct device *dev = &data->client->dev;
+	int index = 0;
+	int i, j, config_offset;
+
+	if (!pdata->config) {
+		dev_dbg(dev, "No cfg data defined, skipping reg init\n");
+		return 0;
+	}
+
+	for (i = 0; i < data->info.object_num; i++) {
+		object = data->object_table + i;
+
+		if (!mxt_object_writable(object->type))
+			continue;
+
+		for (j = 0; j < object->size + 1; j++) {
+			config_offset = index + j;
+			if (config_offset > pdata->config_length) {
+				dev_err(dev, "Not enough config data!\n");
+				return -EINVAL;
+			}
+			mxt_write_object(data, object->type, j,
+					 pdata->config[config_offset]);
+		}
+		index += object->size + 1;
+	}
+
+	return 0;
+}
+
+static int mxt_make_highchg(struct mxt_data *data)
+{
+	struct device *dev = &data->client->dev;
+	struct mxt_message message;
+	int count = 10;
+	int error;
+
+	/* Read dummy message to make high CHG pin */
+	do {
+		error = mxt_read_message(data, &message);
+		if (error)
+			return error;
+	} while (message.reportid != 0xff && --count);
+
+	if (!count) {
+		dev_err(dev, "CHG pin isn't cleared\n");
+		return -EBUSY;
+	}
+
+	return 0;
+}
+
+static void mxt_handle_pdata(struct mxt_data *data)
+{
+	const struct mxt_platform_data *pdata = data->pdata;
+	u8 voltage;
+
+	/* Set touchscreen lines */
+	mxt_write_object(data, MXT_TOUCH_MULTI, MXT_TOUCH_XSIZE,
+			pdata->x_line);
+	mxt_write_object(data, MXT_TOUCH_MULTI, MXT_TOUCH_YSIZE,
+			pdata->y_line);
+
+	/* Set touchscreen orient */
+	mxt_write_object(data, MXT_TOUCH_MULTI, MXT_TOUCH_ORIENT,
+			pdata->orient);
+
+	/* Set touchscreen burst length */
+	mxt_write_object(data, MXT_TOUCH_MULTI,
+			MXT_TOUCH_BLEN, pdata->blen);
+
+	/* Set touchscreen threshold */
+	mxt_write_object(data, MXT_TOUCH_MULTI,
+			MXT_TOUCH_TCHTHR, pdata->threshold);
+
+	/* Set touchscreen resolution */
+	mxt_write_object(data, MXT_TOUCH_MULTI,
+			MXT_TOUCH_XRANGE_LSB, (pdata->x_size - 1) & 0xff);
+	mxt_write_object(data, MXT_TOUCH_MULTI,
+			MXT_TOUCH_XRANGE_MSB, (pdata->x_size - 1) >> 8);
+	mxt_write_object(data, MXT_TOUCH_MULTI,
+			MXT_TOUCH_YRANGE_LSB, (pdata->y_size - 1) & 0xff);
+	mxt_write_object(data, MXT_TOUCH_MULTI,
+			MXT_TOUCH_YRANGE_MSB, (pdata->y_size - 1) >> 8);
+
+	/* Set touchscreen voltage */
+	if (pdata->voltage) {
+		if (pdata->voltage < MXT_VOLTAGE_DEFAULT) {
+			voltage = (MXT_VOLTAGE_DEFAULT - pdata->voltage) /
+				MXT_VOLTAGE_STEP;
+			voltage = 0xff - voltage + 1;
+		} else
+			voltage = (pdata->voltage - MXT_VOLTAGE_DEFAULT) /
+				MXT_VOLTAGE_STEP;
+
+		mxt_write_object(data, MXT_SPT_CTECONFIG,
+				MXT_CTE_VOLTAGE, voltage);
+	}
+}
+
+static int mxt_get_info(struct mxt_data *data)
+{
+	struct i2c_client *client = data->client;
+	struct mxt_info *info = &data->info;
+	int error;
+	u8 val;
+
+	error = mxt_read_reg(client, MXT_FAMILY_ID, &val);
+	if (error)
+		return error;
+	info->family_id = val;
+
+	error = mxt_read_reg(client, MXT_VARIANT_ID, &val);
+	if (error)
+		return error;
+	info->variant_id = val;
+
+	error = mxt_read_reg(client, MXT_VERSION, &val);
+	if (error)
+		return error;
+	info->version = val;
+
+	error = mxt_read_reg(client, MXT_BUILD, &val);
+	if (error)
+		return error;
+	info->build = val;
+
+	error = mxt_read_reg(client, MXT_OBJECT_NUM, &val);
+	if (error)
+		return error;
+	info->object_num = val;
+
+	return 0;
+}
+
+static int mxt_get_object_table(struct mxt_data *data)
+{
+	int error;
+	int i;
+	u16 reg;
+	u8 reportid = 0;
+	u8 buf[MXT_OBJECT_SIZE];
+
+	for (i = 0; i < data->info.object_num; i++) {
+		struct mxt_object *object = data->object_table + i;
+
+		reg = MXT_OBJECT_START + MXT_OBJECT_SIZE * i;
+		error = mxt_read_object_table(data->client, reg, buf);
+		if (error)
+			return error;
+
+		object->type = buf[0];
+		object->start_address = (buf[2] << 8) | buf[1];
+		object->size = buf[3];
+		object->instances = buf[4];
+		object->num_report_ids = buf[5];
+
+		if (object->num_report_ids) {
+			reportid += object->num_report_ids *
+					(object->instances + 1);
+			object->max_reportid = reportid;
+		}
+	}
+
+	return 0;
+}
+
+static int mxt_initialize(struct mxt_data *data)
+{
+	struct i2c_client *client = data->client;
+	struct mxt_info *info = &data->info;
+	int error;
+	u8 val;
+
+	error = mxt_get_info(data);
+	if (error)
+		return error;
+
+	data->object_table = kcalloc(info->object_num,
+				     sizeof(struct mxt_object),
+				     GFP_KERNEL);
+	if (!data->object_table) {
+		dev_err(&client->dev, "Failed to allocate memory\n");
+		return -ENOMEM;
+	}
+
+	/* Get object table information */
+	error = mxt_get_object_table(data);
+	if (error)
+		return error;
+
+	/* Check register init values */
+	error = mxt_check_reg_init(data);
+	if (error)
+		return error;
+
+	error = mxt_make_highchg(data);
+	if (error)
+		return error;
+
+	mxt_handle_pdata(data);
+
+	/* Backup to memory */
+	mxt_write_object(data, MXT_GEN_COMMAND,
+			MXT_COMMAND_BACKUPNV,
+			MXT_BACKUP_VALUE);
+	msleep(MXT_BACKUP_TIME);
+
+	/* Soft reset */
+	mxt_write_object(data, MXT_GEN_COMMAND,
+			MXT_COMMAND_RESET, 1);
+	msleep(MXT_RESET_TIME);
+
+	/* Update matrix size at info struct */
+	error = mxt_read_reg(client, MXT_MATRIX_X_SIZE, &val);
+	if (error)
+		return error;
+	info->matrix_xsize = val;
+
+	error = mxt_read_reg(client, MXT_MATRIX_Y_SIZE, &val);
+	if (error)
+		return error;
+	info->matrix_ysize = val;
+
+	dev_info(&client->dev,
+			"Family ID: %d Variant ID: %d Version: %d Build: %d\n",
+			info->family_id, info->variant_id, info->version,
+			info->build);
+
+	dev_info(&client->dev,
+			"Matrix X Size: %d Matrix Y Size: %d Object Num: %d\n",
+			info->matrix_xsize, info->matrix_ysize,
+			info->object_num);
+
+	return 0;
+}
+
+static ssize_t mxt_object_show(struct device *dev,
+				    struct device_attribute *attr, char *buf)
+{
+	struct mxt_data *data = dev_get_drvdata(dev);
+	struct mxt_object *object;
+	int count = 0;
+	int i, j;
+	int error;
+	u8 val;
+
+	for (i = 0; i < data->info.object_num; i++) {
+		object = data->object_table + i;
+
+		count += sprintf(buf + count,
+				"Object Table Element %d(Type %d)\n",
+				i + 1, object->type);
+
+		if (!mxt_object_readable(object->type)) {
+			count += sprintf(buf + count, "\n");
+			continue;
+		}
+
+		for (j = 0; j < object->size + 1; j++) {
+			error = mxt_read_object(data,
+						object->type, j, &val);
+			if (error)
+				return error;
+
+			count += sprintf(buf + count,
+					"  Byte %d: 0x%x (%d)\n", j, val, val);
+		}
+
+		count += sprintf(buf + count, "\n");
+	}
+
+	return count;
+}
+
+static int mxt_load_fw(struct device *dev, const char *fn)
+{
+	struct mxt_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	const struct firmware *fw = NULL;
+	unsigned int frame_size;
+	unsigned int pos = 0;
+	int ret;
+
+	ret = request_firmware(&fw, fn, dev);
+	if (ret) {
+		dev_err(dev, "Unable to open firmware %s\n", fn);
+		return ret;
+	}
+
+	/* Change to the bootloader mode */
+	mxt_write_object(data, MXT_GEN_COMMAND,
+			MXT_COMMAND_RESET, MXT_BOOT_VALUE);
+	msleep(MXT_RESET_TIME);
+
+	/* Change to slave address of bootloader */
+	if (client->addr == MXT_APP_LOW)
+		client->addr = MXT_BOOT_LOW;
+	else
+		client->addr = MXT_BOOT_HIGH;
+
+	ret = mxt_check_bootloader(client, MXT_WAITING_BOOTLOAD_CMD);
+	if (ret)
+		goto out;
+
+	/* Unlock bootloader */
+	mxt_unlock_bootloader(client);
+
+	while (pos < fw->size) {
+		ret = mxt_check_bootloader(client,
+						MXT_WAITING_FRAME_DATA);
+		if (ret)
+			goto out;
+
+		frame_size = ((*(fw->data + pos) << 8) | *(fw->data + pos + 1));
+
+		/* We should add 2 at frame size as the the firmware data is not
+		 * included the CRC bytes.
+		 */
+		frame_size += 2;
+
+		/* Write one frame to device */
+		mxt_fw_write(client, fw->data + pos, frame_size);
+
+		ret = mxt_check_bootloader(client,
+						MXT_FRAME_CRC_PASS);
+		if (ret)
+			goto out;
+
+		pos += frame_size;
+
+		dev_dbg(dev, "Updated %d bytes / %zd bytes\n", pos, fw->size);
+	}
+
+out:
+	release_firmware(fw);
+
+	/* Change to slave address of application */
+	if (client->addr == MXT_BOOT_LOW)
+		client->addr = MXT_APP_LOW;
+	else
+		client->addr = MXT_APP_HIGH;
+
+	return ret;
+}
+
+static ssize_t mxt_update_fw_store(struct device *dev,
+					struct device_attribute *attr,
+					const char *buf, size_t count)
+{
+	struct mxt_data *data = dev_get_drvdata(dev);
+	int error;
+
+	disable_irq(data->irq);
+
+	error = mxt_load_fw(dev, MXT_FW_NAME);
+	if (error) {
+		dev_err(dev, "The firmware update failed(%d)\n", error);
+		count = error;
+	} else {
+		dev_dbg(dev, "The firmware update succeeded\n");
+
+		/* Wait for reset */
+		msleep(MXT_FWRESET_TIME);
+
+		kfree(data->object_table);
+		data->object_table = NULL;
+
+		mxt_initialize(data);
+	}
+
+	enable_irq(data->irq);
+
+	return count;
+}
+
+static DEVICE_ATTR(object, 0444, mxt_object_show, NULL);
+static DEVICE_ATTR(update_fw, 0664, NULL, mxt_update_fw_store);
+
+static struct attribute *mxt_attrs[] = {
+	&dev_attr_object.attr,
+	&dev_attr_update_fw.attr,
+	NULL
+};
+
+static const struct attribute_group mxt_attr_group = {
+	.attrs = mxt_attrs,
+};
+
+static void mxt_start(struct mxt_data *data)
+{
+	/* Touch enable */
+	mxt_write_object(data,
+			MXT_TOUCH_MULTI, MXT_TOUCH_CTRL, 0x83);
+}
+
+static void mxt_stop(struct mxt_data *data)
+{
+	/* Touch disable */
+	mxt_write_object(data,
+			MXT_TOUCH_MULTI, MXT_TOUCH_CTRL, 0);
+}
+
+static int mxt_input_open(struct input_dev *dev)
+{
+	struct mxt_data *data = input_get_drvdata(dev);
+
+	mxt_start(data);
+
+	return 0;
+}
+
+static void mxt_input_close(struct input_dev *dev)
+{
+	struct mxt_data *data = input_get_drvdata(dev);
+
+	mxt_stop(data);
+}
+
+static int __devinit mxt_probe(struct i2c_client *client,
+		const struct i2c_device_id *id)
+{
+	const struct mxt_platform_data *pdata = client->dev.platform_data;
+	struct mxt_data *data;
+	struct input_dev *input_dev;
+	int error;
+
+	if (!pdata)
+		return -EINVAL;
+
+	data = kzalloc(sizeof(struct mxt_data), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!data || !input_dev) {
+		dev_err(&client->dev, "Failed to allocate memory\n");
+		error = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	input_dev->name = "Atmel maXTouch Touchscreen";
+	input_dev->id.bustype = BUS_I2C;
+	input_dev->dev.parent = &client->dev;
+	input_dev->open = mxt_input_open;
+	input_dev->close = mxt_input_close;
+
+	__set_bit(EV_ABS, input_dev->evbit);
+	__set_bit(EV_KEY, input_dev->evbit);
+	__set_bit(BTN_TOUCH, input_dev->keybit);
+
+	/* For single touch */
+	input_set_abs_params(input_dev, ABS_X,
+			     0, MXT_MAX_XC, 0, 0);
+	input_set_abs_params(input_dev, ABS_Y,
+			     0, MXT_MAX_YC, 0, 0);
+
+	/* For multi touch */
+	input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
+			     0, MXT_MAX_AREA, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_POSITION_X,
+			     0, MXT_MAX_XC, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
+			     0, MXT_MAX_YC, 0, 0);
+
+	input_set_drvdata(input_dev, data);
+
+	data->client = client;
+	data->input_dev = input_dev;
+	data->pdata = pdata;
+	data->irq = client->irq;
+
+	i2c_set_clientdata(client, data);
+
+	error = mxt_initialize(data);
+	if (error)
+		goto err_free_object;
+
+	error = request_threaded_irq(client->irq, NULL, mxt_interrupt,
+			pdata->irqflags, client->dev.driver->name, data);
+	if (error) {
+		dev_err(&client->dev, "Failed to register interrupt\n");
+		goto err_free_object;
+	}
+
+	error = input_register_device(input_dev);
+	if (error)
+		goto err_free_irq;
+
+	error = sysfs_create_group(&client->dev.kobj, &mxt_attr_group);
+	if (error)
+		goto err_unregister_device;
+
+	return 0;
+
+err_unregister_device:
+	input_unregister_device(input_dev);
+	input_dev = NULL;
+err_free_irq:
+	free_irq(client->irq, data);
+err_free_object:
+	kfree(data->object_table);
+err_free_mem:
+	input_free_device(input_dev);
+	kfree(data);
+	return error;
+}
+
+static int __devexit mxt_remove(struct i2c_client *client)
+{
+	struct mxt_data *data = i2c_get_clientdata(client);
+
+	sysfs_remove_group(&client->dev.kobj, &mxt_attr_group);
+	free_irq(data->irq, data);
+	input_unregister_device(data->input_dev);
+	kfree(data->object_table);
+	kfree(data);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int mxt_suspend(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct mxt_data *data = i2c_get_clientdata(client);
+	struct input_dev *input_dev = data->input_dev;
+
+	mutex_lock(&input_dev->mutex);
+
+	if (input_dev->users)
+		mxt_stop(data);
+
+	mutex_unlock(&input_dev->mutex);
+
+	return 0;
+}
+
+static int mxt_resume(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct mxt_data *data = i2c_get_clientdata(client);
+	struct input_dev *input_dev = data->input_dev;
+
+	/* Soft reset */
+	mxt_write_object(data, MXT_GEN_COMMAND,
+			MXT_COMMAND_RESET, 1);
+
+	msleep(MXT_RESET_TIME);
+
+	mutex_lock(&input_dev->mutex);
+
+	if (input_dev->users)
+		mxt_start(data);
+
+	mutex_unlock(&input_dev->mutex);
+
+	return 0;
+}
+
+static const struct dev_pm_ops mxt_pm_ops = {
+	.suspend	= mxt_suspend,
+	.resume		= mxt_resume,
+};
+#endif
+
+static const struct i2c_device_id mxt_id[] = {
+	{ "qt602240_ts", 0 },
+	{ "atmel_mxt_ts", 0 },
+	{ "mXT224", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, mxt_id);
+
+static struct i2c_driver mxt_driver = {
+	.driver = {
+		.name	= "atmel_mxt_ts",
+		.owner	= THIS_MODULE,
+#ifdef CONFIG_PM
+		.pm	= &mxt_pm_ops,
+#endif
+	},
+	.probe		= mxt_probe,
+	.remove		= __devexit_p(mxt_remove),
+	.id_table	= mxt_id,
+};
+
+static int __init mxt_init(void)
+{
+	return i2c_add_driver(&mxt_driver);
+}
+
+static void __exit mxt_exit(void)
+{
+	i2c_del_driver(&mxt_driver);
+}
+
+module_init(mxt_init);
+module_exit(mxt_exit);
+
+/* Module information */
+MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
+MODULE_DESCRIPTION("Atmel maXTouch Touchscreen driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/bu21013_ts.c b/drivers/input/touchscreen/bu21013_ts.c
index f7fa9ef4cd65..1507ce108d5b 100644
--- a/drivers/input/touchscreen/bu21013_ts.c
+++ b/drivers/input/touchscreen/bu21013_ts.c
@@ -12,6 +12,7 @@
 #include <linux/input.h>
 #include <linux/input/bu21013.h>
 #include <linux/slab.h>
+#include <linux/regulator/consumer.h>
 
 #define PEN_DOWN_INTR	0
 #define MAX_FINGERS	2
@@ -139,6 +140,7 @@
  * @chip: pointer to the touch panel controller
  * @in_dev: pointer to the input device structure
  * @intr_pin: interrupt pin value
+ * @regulator: pointer to the Regulator used for touch screen
  *
  * Touch panel device data structure
  */
@@ -149,6 +151,7 @@ struct bu21013_ts_data {
 	const struct bu21013_platform_device *chip;
 	struct input_dev *in_dev;
 	unsigned int intr_pin;
+	struct regulator *regulator;
 };
 
 /**
@@ -456,6 +459,20 @@ static int __devinit bu21013_probe(struct i2c_client *client,
 	bu21013_data->in_dev = in_dev;
 	bu21013_data->chip = pdata;
 	bu21013_data->client = client;
+
+	bu21013_data->regulator = regulator_get(&client->dev, "V-TOUCH");
+	if (IS_ERR(bu21013_data->regulator)) {
+		dev_err(&client->dev, "regulator_get failed\n");
+		error = PTR_ERR(bu21013_data->regulator);
+		goto err_free_mem;
+	}
+
+	error = regulator_enable(bu21013_data->regulator);
+	if (error < 0) {
+		dev_err(&client->dev, "regulator enable failed\n");
+		goto err_put_regulator;
+	}
+
 	bu21013_data->touch_stopped = false;
 	init_waitqueue_head(&bu21013_data->wait);
 
@@ -464,7 +481,7 @@ static int __devinit bu21013_probe(struct i2c_client *client,
 		error = pdata->cs_en(pdata->cs_pin);
 		if (error < 0) {
 			dev_err(&client->dev, "chip init failed\n");
-			goto err_free_mem;
+			goto err_disable_regulator;
 		}
 	}
 
@@ -485,9 +502,9 @@ static int __devinit bu21013_probe(struct i2c_client *client,
 	__set_bit(EV_ABS, in_dev->evbit);
 
 	input_set_abs_params(in_dev, ABS_MT_POSITION_X, 0,
-						pdata->x_max_res, 0, 0);
+						pdata->touch_x_max, 0, 0);
 	input_set_abs_params(in_dev, ABS_MT_POSITION_Y, 0,
-						pdata->y_max_res, 0, 0);
+						pdata->touch_y_max, 0, 0);
 	input_set_drvdata(in_dev, bu21013_data);
 
 	error = request_threaded_irq(pdata->irq, NULL, bu21013_gpio_irq,
@@ -513,6 +530,10 @@ err_free_irq:
 	bu21013_free_irq(bu21013_data);
 err_cs_disable:
 	pdata->cs_dis(pdata->cs_pin);
+err_disable_regulator:
+	regulator_disable(bu21013_data->regulator);
+err_put_regulator:
+	regulator_put(bu21013_data->regulator);
 err_free_mem:
 	input_free_device(in_dev);
 	kfree(bu21013_data);
@@ -535,6 +556,10 @@ static int __devexit bu21013_remove(struct i2c_client *client)
 	bu21013_data->chip->cs_dis(bu21013_data->chip->cs_pin);
 
 	input_unregister_device(bu21013_data->in_dev);
+
+	regulator_disable(bu21013_data->regulator);
+	regulator_put(bu21013_data->regulator);
+
 	kfree(bu21013_data);
 
 	device_init_wakeup(&client->dev, false);
@@ -561,6 +586,8 @@ static int bu21013_suspend(struct device *dev)
 	else
 		disable_irq(bu21013_data->chip->irq);
 
+	regulator_disable(bu21013_data->regulator);
+
 	return 0;
 }
 
@@ -577,6 +604,12 @@ static int bu21013_resume(struct device *dev)
 	struct i2c_client *client = bu21013_data->client;
 	int retval;
 
+	retval = regulator_enable(bu21013_data->regulator);
+	if (retval < 0) {
+		dev_err(&client->dev, "bu21013 regulator enable failed\n");
+		return retval;
+	}
+
 	retval = bu21013_init_chip(bu21013_data);
 	if (retval < 0) {
 		dev_err(&client->dev, "bu21013 controller config failed\n");
diff --git a/drivers/input/touchscreen/qt602240_ts.c b/drivers/input/touchscreen/qt602240_ts.c
deleted file mode 100644
index 4dcb0e872f6a..000000000000
--- a/drivers/input/touchscreen/qt602240_ts.c
+++ /dev/null
@@ -1,1406 +0,0 @@
-/*
- * AT42QT602240/ATMXT224 Touchscreen driver
- *
- * Copyright (C) 2010 Samsung Electronics Co.Ltd
- * Author: Joonyoung Shim <jy0922.shim@samsung.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/firmware.h>
-#include <linux/i2c.h>
-#include <linux/i2c/qt602240_ts.h>
-#include <linux/input.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-
-/* Version */
-#define QT602240_VER_20			20
-#define QT602240_VER_21			21
-#define QT602240_VER_22			22
-
-/* Slave addresses */
-#define QT602240_APP_LOW		0x4a
-#define QT602240_APP_HIGH		0x4b
-#define QT602240_BOOT_LOW		0x24
-#define QT602240_BOOT_HIGH		0x25
-
-/* Firmware */
-#define QT602240_FW_NAME		"qt602240.fw"
-
-/* Registers */
-#define QT602240_FAMILY_ID		0x00
-#define QT602240_VARIANT_ID		0x01
-#define QT602240_VERSION		0x02
-#define QT602240_BUILD			0x03
-#define QT602240_MATRIX_X_SIZE		0x04
-#define QT602240_MATRIX_Y_SIZE		0x05
-#define QT602240_OBJECT_NUM		0x06
-#define QT602240_OBJECT_START		0x07
-
-#define QT602240_OBJECT_SIZE		6
-
-/* Object types */
-#define QT602240_DEBUG_DIAGNOSTIC	37
-#define QT602240_GEN_MESSAGE		5
-#define QT602240_GEN_COMMAND		6
-#define QT602240_GEN_POWER		7
-#define QT602240_GEN_ACQUIRE		8
-#define QT602240_TOUCH_MULTI		9
-#define QT602240_TOUCH_KEYARRAY		15
-#define QT602240_TOUCH_PROXIMITY	23
-#define QT602240_PROCI_GRIPFACE		20
-#define QT602240_PROCG_NOISE		22
-#define QT602240_PROCI_ONETOUCH		24
-#define QT602240_PROCI_TWOTOUCH		27
-#define QT602240_SPT_COMMSCONFIG	18	/* firmware ver 21 over */
-#define QT602240_SPT_GPIOPWM		19
-#define QT602240_SPT_SELFTEST		25
-#define QT602240_SPT_CTECONFIG		28
-#define QT602240_SPT_USERDATA		38	/* firmware ver 21 over */
-
-/* QT602240_GEN_COMMAND field */
-#define QT602240_COMMAND_RESET		0
-#define QT602240_COMMAND_BACKUPNV	1
-#define QT602240_COMMAND_CALIBRATE	2
-#define QT602240_COMMAND_REPORTALL	3
-#define QT602240_COMMAND_DIAGNOSTIC	5
-
-/* QT602240_GEN_POWER field */
-#define QT602240_POWER_IDLEACQINT	0
-#define QT602240_POWER_ACTVACQINT	1
-#define QT602240_POWER_ACTV2IDLETO	2
-
-/* QT602240_GEN_ACQUIRE field */
-#define QT602240_ACQUIRE_CHRGTIME	0
-#define QT602240_ACQUIRE_TCHDRIFT	2
-#define QT602240_ACQUIRE_DRIFTST	3
-#define QT602240_ACQUIRE_TCHAUTOCAL	4
-#define QT602240_ACQUIRE_SYNC		5
-#define QT602240_ACQUIRE_ATCHCALST	6
-#define QT602240_ACQUIRE_ATCHCALSTHR	7
-
-/* QT602240_TOUCH_MULTI field */
-#define QT602240_TOUCH_CTRL		0
-#define QT602240_TOUCH_XORIGIN		1
-#define QT602240_TOUCH_YORIGIN		2
-#define QT602240_TOUCH_XSIZE		3
-#define QT602240_TOUCH_YSIZE		4
-#define QT602240_TOUCH_BLEN		6
-#define QT602240_TOUCH_TCHTHR		7
-#define QT602240_TOUCH_TCHDI		8
-#define QT602240_TOUCH_ORIENT		9
-#define QT602240_TOUCH_MOVHYSTI		11
-#define QT602240_TOUCH_MOVHYSTN		12
-#define QT602240_TOUCH_NUMTOUCH		14
-#define QT602240_TOUCH_MRGHYST		15
-#define QT602240_TOUCH_MRGTHR		16
-#define QT602240_TOUCH_AMPHYST		17
-#define QT602240_TOUCH_XRANGE_LSB	18
-#define QT602240_TOUCH_XRANGE_MSB	19
-#define QT602240_TOUCH_YRANGE_LSB	20
-#define QT602240_TOUCH_YRANGE_MSB	21
-#define QT602240_TOUCH_XLOCLIP		22
-#define QT602240_TOUCH_XHICLIP		23
-#define QT602240_TOUCH_YLOCLIP		24
-#define QT602240_TOUCH_YHICLIP		25
-#define QT602240_TOUCH_XEDGECTRL	26
-#define QT602240_TOUCH_XEDGEDIST	27
-#define QT602240_TOUCH_YEDGECTRL	28
-#define QT602240_TOUCH_YEDGEDIST	29
-#define QT602240_TOUCH_JUMPLIMIT	30	/* firmware ver 22 over */
-
-/* QT602240_PROCI_GRIPFACE field */
-#define QT602240_GRIPFACE_CTRL		0
-#define QT602240_GRIPFACE_XLOGRIP	1
-#define QT602240_GRIPFACE_XHIGRIP	2
-#define QT602240_GRIPFACE_YLOGRIP	3
-#define QT602240_GRIPFACE_YHIGRIP	4
-#define QT602240_GRIPFACE_MAXTCHS	5
-#define QT602240_GRIPFACE_SZTHR1	7
-#define QT602240_GRIPFACE_SZTHR2	8
-#define QT602240_GRIPFACE_SHPTHR1	9
-#define QT602240_GRIPFACE_SHPTHR2	10
-#define QT602240_GRIPFACE_SUPEXTTO	11
-
-/* QT602240_PROCI_NOISE field */
-#define QT602240_NOISE_CTRL		0
-#define QT602240_NOISE_OUTFLEN		1
-#define QT602240_NOISE_GCAFUL_LSB	3
-#define QT602240_NOISE_GCAFUL_MSB	4
-#define QT602240_NOISE_GCAFLL_LSB	5
-#define QT602240_NOISE_GCAFLL_MSB	6
-#define QT602240_NOISE_ACTVGCAFVALID	7
-#define QT602240_NOISE_NOISETHR		8
-#define QT602240_NOISE_FREQHOPSCALE	10
-#define QT602240_NOISE_FREQ0		11
-#define QT602240_NOISE_FREQ1		12
-#define QT602240_NOISE_FREQ2		13
-#define QT602240_NOISE_FREQ3		14
-#define QT602240_NOISE_FREQ4		15
-#define QT602240_NOISE_IDLEGCAFVALID	16
-
-/* QT602240_SPT_COMMSCONFIG */
-#define QT602240_COMMS_CTRL		0
-#define QT602240_COMMS_CMD		1
-
-/* QT602240_SPT_CTECONFIG field */
-#define QT602240_CTE_CTRL		0
-#define QT602240_CTE_CMD		1
-#define QT602240_CTE_MODE		2
-#define QT602240_CTE_IDLEGCAFDEPTH	3
-#define QT602240_CTE_ACTVGCAFDEPTH	4
-#define QT602240_CTE_VOLTAGE		5	/* firmware ver 21 over */
-
-#define QT602240_VOLTAGE_DEFAULT	2700000
-#define QT602240_VOLTAGE_STEP		10000
-
-/* Define for QT602240_GEN_COMMAND */
-#define QT602240_BOOT_VALUE		0xa5
-#define QT602240_BACKUP_VALUE		0x55
-#define QT602240_BACKUP_TIME		25	/* msec */
-#define QT602240_RESET_TIME		65	/* msec */
-
-#define QT602240_FWRESET_TIME		175	/* msec */
-
-/* Command to unlock bootloader */
-#define QT602240_UNLOCK_CMD_MSB		0xaa
-#define QT602240_UNLOCK_CMD_LSB		0xdc
-
-/* Bootloader mode status */
-#define QT602240_WAITING_BOOTLOAD_CMD	0xc0	/* valid 7 6 bit only */
-#define QT602240_WAITING_FRAME_DATA	0x80	/* valid 7 6 bit only */
-#define QT602240_FRAME_CRC_CHECK	0x02
-#define QT602240_FRAME_CRC_FAIL		0x03
-#define QT602240_FRAME_CRC_PASS		0x04
-#define QT602240_APP_CRC_FAIL		0x40	/* valid 7 8 bit only */
-#define QT602240_BOOT_STATUS_MASK	0x3f
-
-/* Touch status */
-#define QT602240_SUPPRESS		(1 << 1)
-#define QT602240_AMP			(1 << 2)
-#define QT602240_VECTOR			(1 << 3)
-#define QT602240_MOVE			(1 << 4)
-#define QT602240_RELEASE		(1 << 5)
-#define QT602240_PRESS			(1 << 6)
-#define QT602240_DETECT			(1 << 7)
-
-/* Touchscreen absolute values */
-#define QT602240_MAX_XC			0x3ff
-#define QT602240_MAX_YC			0x3ff
-#define QT602240_MAX_AREA		0xff
-
-#define QT602240_MAX_FINGER		10
-
-/* Initial register values recommended from chip vendor */
-static const u8 init_vals_ver_20[] = {
-	/* QT602240_GEN_COMMAND(6) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_GEN_POWER(7) */
-	0x20, 0xff, 0x32,
-	/* QT602240_GEN_ACQUIRE(8) */
-	0x08, 0x05, 0x05, 0x00, 0x00, 0x00, 0x05, 0x14,
-	/* QT602240_TOUCH_MULTI(9) */
-	0x00, 0x00, 0x00, 0x11, 0x0a, 0x00, 0x00, 0x00, 0x02, 0x00,
-	0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x64,
-	/* QT602240_TOUCH_KEYARRAY(15) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00,
-	/* QT602240_SPT_GPIOPWM(19) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00,
-	/* QT602240_PROCI_GRIPFACE(20) */
-	0x00, 0x64, 0x64, 0x64, 0x64, 0x00, 0x00, 0x1e, 0x14, 0x04,
-	0x1e, 0x00,
-	/* QT602240_PROCG_NOISE(22) */
-	0x05, 0x00, 0x00, 0x19, 0x00, 0xe7, 0xff, 0x04, 0x32, 0x00,
-	0x01, 0x0a, 0x0f, 0x14, 0x00, 0x00, 0xe8,
-	/* QT602240_TOUCH_PROXIMITY(23) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00,
-	/* QT602240_PROCI_ONETOUCH(24) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_SPT_SELFTEST(25) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00,
-	/* QT602240_PROCI_TWOTOUCH(27) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_SPT_CTECONFIG(28) */
-	0x00, 0x00, 0x00, 0x04, 0x08,
-};
-
-static const u8 init_vals_ver_21[] = {
-	/* QT602240_GEN_COMMAND(6) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_GEN_POWER(7) */
-	0x20, 0xff, 0x32,
-	/* QT602240_GEN_ACQUIRE(8) */
-	0x0a, 0x00, 0x05, 0x00, 0x00, 0x00, 0x09, 0x23,
-	/* QT602240_TOUCH_MULTI(9) */
-	0x00, 0x00, 0x00, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x02, 0x00,
-	0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_TOUCH_KEYARRAY(15) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00,
-	/* QT602240_SPT_GPIOPWM(19) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_PROCI_GRIPFACE(20) */
-	0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x28, 0x04,
-	0x0f, 0x0a,
-	/* QT602240_PROCG_NOISE(22) */
-	0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x23, 0x00,
-	0x00, 0x05, 0x0f, 0x19, 0x23, 0x2d, 0x03,
-	/* QT602240_TOUCH_PROXIMITY(23) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00,
-	/* QT602240_PROCI_ONETOUCH(24) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_SPT_SELFTEST(25) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00,
-	/* QT602240_PROCI_TWOTOUCH(27) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_SPT_CTECONFIG(28) */
-	0x00, 0x00, 0x00, 0x08, 0x10, 0x00,
-};
-
-static const u8 init_vals_ver_22[] = {
-	/* QT602240_GEN_COMMAND(6) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_GEN_POWER(7) */
-	0x20, 0xff, 0x32,
-	/* QT602240_GEN_ACQUIRE(8) */
-	0x0a, 0x00, 0x05, 0x00, 0x00, 0x00, 0x09, 0x23,
-	/* QT602240_TOUCH_MULTI(9) */
-	0x00, 0x00, 0x00, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x02, 0x00,
-	0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00,
-	/* QT602240_TOUCH_KEYARRAY(15) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00,
-	/* QT602240_SPT_GPIOPWM(19) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_PROCI_GRIPFACE(20) */
-	0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x28, 0x04,
-	0x0f, 0x0a,
-	/* QT602240_PROCG_NOISE(22) */
-	0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x23, 0x00,
-	0x00, 0x05, 0x0f, 0x19, 0x23, 0x2d, 0x03,
-	/* QT602240_TOUCH_PROXIMITY(23) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_PROCI_ONETOUCH(24) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_SPT_SELFTEST(25) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00,
-	/* QT602240_PROCI_TWOTOUCH(27) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_SPT_CTECONFIG(28) */
-	0x00, 0x00, 0x00, 0x08, 0x10, 0x00,
-};
-
-struct qt602240_info {
-	u8 family_id;
-	u8 variant_id;
-	u8 version;
-	u8 build;
-	u8 matrix_xsize;
-	u8 matrix_ysize;
-	u8 object_num;
-};
-
-struct qt602240_object {
-	u8 type;
-	u16 start_address;
-	u8 size;
-	u8 instances;
-	u8 num_report_ids;
-
-	/* to map object and message */
-	u8 max_reportid;
-};
-
-struct qt602240_message {
-	u8 reportid;
-	u8 message[7];
-	u8 checksum;
-};
-
-struct qt602240_finger {
-	int status;
-	int x;
-	int y;
-	int area;
-};
-
-/* Each client has this additional data */
-struct qt602240_data {
-	struct i2c_client *client;
-	struct input_dev *input_dev;
-	const struct qt602240_platform_data *pdata;
-	struct qt602240_object *object_table;
-	struct qt602240_info info;
-	struct qt602240_finger finger[QT602240_MAX_FINGER];
-	unsigned int irq;
-};
-
-static bool qt602240_object_readable(unsigned int type)
-{
-	switch (type) {
-	case QT602240_GEN_MESSAGE:
-	case QT602240_GEN_COMMAND:
-	case QT602240_GEN_POWER:
-	case QT602240_GEN_ACQUIRE:
-	case QT602240_TOUCH_MULTI:
-	case QT602240_TOUCH_KEYARRAY:
-	case QT602240_TOUCH_PROXIMITY:
-	case QT602240_PROCI_GRIPFACE:
-	case QT602240_PROCG_NOISE:
-	case QT602240_PROCI_ONETOUCH:
-	case QT602240_PROCI_TWOTOUCH:
-	case QT602240_SPT_COMMSCONFIG:
-	case QT602240_SPT_GPIOPWM:
-	case QT602240_SPT_SELFTEST:
-	case QT602240_SPT_CTECONFIG:
-	case QT602240_SPT_USERDATA:
-		return true;
-	default:
-		return false;
-	}
-}
-
-static bool qt602240_object_writable(unsigned int type)
-{
-	switch (type) {
-	case QT602240_GEN_COMMAND:
-	case QT602240_GEN_POWER:
-	case QT602240_GEN_ACQUIRE:
-	case QT602240_TOUCH_MULTI:
-	case QT602240_TOUCH_KEYARRAY:
-	case QT602240_TOUCH_PROXIMITY:
-	case QT602240_PROCI_GRIPFACE:
-	case QT602240_PROCG_NOISE:
-	case QT602240_PROCI_ONETOUCH:
-	case QT602240_PROCI_TWOTOUCH:
-	case QT602240_SPT_GPIOPWM:
-	case QT602240_SPT_SELFTEST:
-	case QT602240_SPT_CTECONFIG:
-		return true;
-	default:
-		return false;
-	}
-}
-
-static void qt602240_dump_message(struct device *dev,
-				  struct qt602240_message *message)
-{
-	dev_dbg(dev, "reportid:\t0x%x\n", message->reportid);
-	dev_dbg(dev, "message1:\t0x%x\n", message->message[0]);
-	dev_dbg(dev, "message2:\t0x%x\n", message->message[1]);
-	dev_dbg(dev, "message3:\t0x%x\n", message->message[2]);
-	dev_dbg(dev, "message4:\t0x%x\n", message->message[3]);
-	dev_dbg(dev, "message5:\t0x%x\n", message->message[4]);
-	dev_dbg(dev, "message6:\t0x%x\n", message->message[5]);
-	dev_dbg(dev, "message7:\t0x%x\n", message->message[6]);
-	dev_dbg(dev, "checksum:\t0x%x\n", message->checksum);
-}
-
-static int qt602240_check_bootloader(struct i2c_client *client,
-				     unsigned int state)
-{
-	u8 val;
-
-recheck:
-	if (i2c_master_recv(client, &val, 1) != 1) {
-		dev_err(&client->dev, "%s: i2c recv failed\n", __func__);
-		return -EIO;
-	}
-
-	switch (state) {
-	case QT602240_WAITING_BOOTLOAD_CMD:
-	case QT602240_WAITING_FRAME_DATA:
-		val &= ~QT602240_BOOT_STATUS_MASK;
-		break;
-	case QT602240_FRAME_CRC_PASS:
-		if (val == QT602240_FRAME_CRC_CHECK)
-			goto recheck;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	if (val != state) {
-		dev_err(&client->dev, "Unvalid bootloader mode state\n");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int qt602240_unlock_bootloader(struct i2c_client *client)
-{
-	u8 buf[2];
-
-	buf[0] = QT602240_UNLOCK_CMD_LSB;
-	buf[1] = QT602240_UNLOCK_CMD_MSB;
-
-	if (i2c_master_send(client, buf, 2) != 2) {
-		dev_err(&client->dev, "%s: i2c send failed\n", __func__);
-		return -EIO;
-	}
-
-	return 0;
-}
-
-static int qt602240_fw_write(struct i2c_client *client,
-			     const u8 *data, unsigned int frame_size)
-{
-	if (i2c_master_send(client, data, frame_size) != frame_size) {
-		dev_err(&client->dev, "%s: i2c send failed\n", __func__);
-		return -EIO;
-	}
-
-	return 0;
-}
-
-static int __qt602240_read_reg(struct i2c_client *client,
-			       u16 reg, u16 len, void *val)
-{
-	struct i2c_msg xfer[2];
-	u8 buf[2];
-
-	buf[0] = reg & 0xff;
-	buf[1] = (reg >> 8) & 0xff;
-
-	/* Write register */
-	xfer[0].addr = client->addr;
-	xfer[0].flags = 0;
-	xfer[0].len = 2;
-	xfer[0].buf = buf;
-
-	/* Read data */
-	xfer[1].addr = client->addr;
-	xfer[1].flags = I2C_M_RD;
-	xfer[1].len = len;
-	xfer[1].buf = val;
-
-	if (i2c_transfer(client->adapter, xfer, 2) != 2) {
-		dev_err(&client->dev, "%s: i2c transfer failed\n", __func__);
-		return -EIO;
-	}
-
-	return 0;
-}
-
-static int qt602240_read_reg(struct i2c_client *client, u16 reg, u8 *val)
-{
-	return __qt602240_read_reg(client, reg, 1, val);
-}
-
-static int qt602240_write_reg(struct i2c_client *client, u16 reg, u8 val)
-{
-	u8 buf[3];
-
-	buf[0] = reg & 0xff;
-	buf[1] = (reg >> 8) & 0xff;
-	buf[2] = val;
-
-	if (i2c_master_send(client, buf, 3) != 3) {
-		dev_err(&client->dev, "%s: i2c send failed\n", __func__);
-		return -EIO;
-	}
-
-	return 0;
-}
-
-static int qt602240_read_object_table(struct i2c_client *client,
-				      u16 reg, u8 *object_buf)
-{
-	return __qt602240_read_reg(client, reg, QT602240_OBJECT_SIZE,
-				   object_buf);
-}
-
-static struct qt602240_object *
-qt602240_get_object(struct qt602240_data *data, u8 type)
-{
-	struct qt602240_object *object;
-	int i;
-
-	for (i = 0; i < data->info.object_num; i++) {
-		object = data->object_table + i;
-		if (object->type == type)
-			return object;
-	}
-
-	dev_err(&data->client->dev, "Invalid object type\n");
-	return NULL;
-}
-
-static int qt602240_read_message(struct qt602240_data *data,
-				 struct qt602240_message *message)
-{
-	struct qt602240_object *object;
-	u16 reg;
-
-	object = qt602240_get_object(data, QT602240_GEN_MESSAGE);
-	if (!object)
-		return -EINVAL;
-
-	reg = object->start_address;
-	return __qt602240_read_reg(data->client, reg,
-			sizeof(struct qt602240_message), message);
-}
-
-static int qt602240_read_object(struct qt602240_data *data,
-				u8 type, u8 offset, u8 *val)
-{
-	struct qt602240_object *object;
-	u16 reg;
-
-	object = qt602240_get_object(data, type);
-	if (!object)
-		return -EINVAL;
-
-	reg = object->start_address;
-	return __qt602240_read_reg(data->client, reg + offset, 1, val);
-}
-
-static int qt602240_write_object(struct qt602240_data *data,
-				 u8 type, u8 offset, u8 val)
-{
-	struct qt602240_object *object;
-	u16 reg;
-
-	object = qt602240_get_object(data, type);
-	if (!object)
-		return -EINVAL;
-
-	reg = object->start_address;
-	return qt602240_write_reg(data->client, reg + offset, val);
-}
-
-static void qt602240_input_report(struct qt602240_data *data, int single_id)
-{
-	struct qt602240_finger *finger = data->finger;
-	struct input_dev *input_dev = data->input_dev;
-	int status = finger[single_id].status;
-	int finger_num = 0;
-	int id;
-
-	for (id = 0; id < QT602240_MAX_FINGER; id++) {
-		if (!finger[id].status)
-			continue;
-
-		input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR,
-				finger[id].status != QT602240_RELEASE ?
-				finger[id].area : 0);
-		input_report_abs(input_dev, ABS_MT_POSITION_X,
-				finger[id].x);
-		input_report_abs(input_dev, ABS_MT_POSITION_Y,
-				finger[id].y);
-		input_mt_sync(input_dev);
-
-		if (finger[id].status == QT602240_RELEASE)
-			finger[id].status = 0;
-		else
-			finger_num++;
-	}
-
-	input_report_key(input_dev, BTN_TOUCH, finger_num > 0);
-
-	if (status != QT602240_RELEASE) {
-		input_report_abs(input_dev, ABS_X, finger[single_id].x);
-		input_report_abs(input_dev, ABS_Y, finger[single_id].y);
-	}
-
-	input_sync(input_dev);
-}
-
-static void qt602240_input_touchevent(struct qt602240_data *data,
-				      struct qt602240_message *message, int id)
-{
-	struct qt602240_finger *finger = data->finger;
-	struct device *dev = &data->client->dev;
-	u8 status = message->message[0];
-	int x;
-	int y;
-	int area;
-
-	/* Check the touch is present on the screen */
-	if (!(status & QT602240_DETECT)) {
-		if (status & QT602240_RELEASE) {
-			dev_dbg(dev, "[%d] released\n", id);
-
-			finger[id].status = QT602240_RELEASE;
-			qt602240_input_report(data, id);
-		}
-		return;
-	}
-
-	/* Check only AMP detection */
-	if (!(status & (QT602240_PRESS | QT602240_MOVE)))
-		return;
-
-	x = (message->message[1] << 2) | ((message->message[3] & ~0x3f) >> 6);
-	y = (message->message[2] << 2) | ((message->message[3] & ~0xf3) >> 2);
-	area = message->message[4];
-
-	dev_dbg(dev, "[%d] %s x: %d, y: %d, area: %d\n", id,
-		status & QT602240_MOVE ? "moved" : "pressed",
-		x, y, area);
-
-	finger[id].status = status & QT602240_MOVE ?
-				QT602240_MOVE : QT602240_PRESS;
-	finger[id].x = x;
-	finger[id].y = y;
-	finger[id].area = area;
-
-	qt602240_input_report(data, id);
-}
-
-static irqreturn_t qt602240_interrupt(int irq, void *dev_id)
-{
-	struct qt602240_data *data = dev_id;
-	struct qt602240_message message;
-	struct qt602240_object *object;
-	struct device *dev = &data->client->dev;
-	int id;
-	u8 reportid;
-	u8 max_reportid;
-	u8 min_reportid;
-
-	do {
-		if (qt602240_read_message(data, &message)) {
-			dev_err(dev, "Failed to read message\n");
-			goto end;
-		}
-
-		reportid = message.reportid;
-
-		/* whether reportid is thing of QT602240_TOUCH_MULTI */
-		object = qt602240_get_object(data, QT602240_TOUCH_MULTI);
-		if (!object)
-			goto end;
-
-		max_reportid = object->max_reportid;
-		min_reportid = max_reportid - object->num_report_ids + 1;
-		id = reportid - min_reportid;
-
-		if (reportid >= min_reportid && reportid <= max_reportid)
-			qt602240_input_touchevent(data, &message, id);
-		else
-			qt602240_dump_message(dev, &message);
-	} while (reportid != 0xff);
-
-end:
-	return IRQ_HANDLED;
-}
-
-static int qt602240_check_reg_init(struct qt602240_data *data)
-{
-	struct qt602240_object *object;
-	struct device *dev = &data->client->dev;
-	int index = 0;
-	int i, j;
-	u8 version = data->info.version;
-	u8 *init_vals;
-
-	switch (version) {
-	case QT602240_VER_20:
-		init_vals = (u8 *)init_vals_ver_20;
-		break;
-	case QT602240_VER_21:
-		init_vals = (u8 *)init_vals_ver_21;
-		break;
-	case QT602240_VER_22:
-		init_vals = (u8 *)init_vals_ver_22;
-		break;
-	default:
-		dev_err(dev, "Firmware version %d doesn't support\n", version);
-		return -EINVAL;
-	}
-
-	for (i = 0; i < data->info.object_num; i++) {
-		object = data->object_table + i;
-
-		if (!qt602240_object_writable(object->type))
-			continue;
-
-		for (j = 0; j < object->size + 1; j++)
-			qt602240_write_object(data, object->type, j,
-					init_vals[index + j]);
-
-		index += object->size + 1;
-	}
-
-	return 0;
-}
-
-static int qt602240_check_matrix_size(struct qt602240_data *data)
-{
-	const struct qt602240_platform_data *pdata = data->pdata;
-	struct device *dev = &data->client->dev;
-	int mode = -1;
-	int error;
-	u8 val;
-
-	dev_dbg(dev, "Number of X lines: %d\n", pdata->x_line);
-	dev_dbg(dev, "Number of Y lines: %d\n", pdata->y_line);
-
-	switch (pdata->x_line) {
-	case 0 ... 15:
-		if (pdata->y_line <= 14)
-			mode = 0;
-		break;
-	case 16:
-		if (pdata->y_line <= 12)
-			mode = 1;
-		if (pdata->y_line == 13 || pdata->y_line == 14)
-			mode = 0;
-		break;
-	case 17:
-		if (pdata->y_line <= 11)
-			mode = 2;
-		if (pdata->y_line == 12 || pdata->y_line == 13)
-			mode = 1;
-		break;
-	case 18:
-		if (pdata->y_line <= 10)
-			mode = 3;
-		if (pdata->y_line == 11 || pdata->y_line == 12)
-			mode = 2;
-		break;
-	case 19:
-		if (pdata->y_line <= 9)
-			mode = 4;
-		if (pdata->y_line == 10 || pdata->y_line == 11)
-			mode = 3;
-		break;
-	case 20:
-		mode = 4;
-	}
-
-	if (mode < 0) {
-		dev_err(dev, "Invalid X/Y lines\n");
-		return -EINVAL;
-	}
-
-	error = qt602240_read_object(data, QT602240_SPT_CTECONFIG,
-				QT602240_CTE_MODE, &val);
-	if (error)
-		return error;
-
-	if (mode == val)
-		return 0;
-
-	/* Change the CTE configuration */
-	qt602240_write_object(data, QT602240_SPT_CTECONFIG,
-			QT602240_CTE_CTRL, 1);
-	qt602240_write_object(data, QT602240_SPT_CTECONFIG,
-			QT602240_CTE_MODE, mode);
-	qt602240_write_object(data, QT602240_SPT_CTECONFIG,
-			QT602240_CTE_CTRL, 0);
-
-	return 0;
-}
-
-static int qt602240_make_highchg(struct qt602240_data *data)
-{
-	struct device *dev = &data->client->dev;
-	int count = 10;
-	int error;
-	u8 val;
-
-	/* Read dummy message to make high CHG pin */
-	do {
-		error = qt602240_read_object(data, QT602240_GEN_MESSAGE, 0, &val);
-		if (error)
-			return error;
-	} while ((val != 0xff) && --count);
-
-	if (!count) {
-		dev_err(dev, "CHG pin isn't cleared\n");
-		return -EBUSY;
-	}
-
-	return 0;
-}
-
-static void qt602240_handle_pdata(struct qt602240_data *data)
-{
-	const struct qt602240_platform_data *pdata = data->pdata;
-	u8 voltage;
-
-	/* Set touchscreen lines */
-	qt602240_write_object(data, QT602240_TOUCH_MULTI, QT602240_TOUCH_XSIZE,
-			pdata->x_line);
-	qt602240_write_object(data, QT602240_TOUCH_MULTI, QT602240_TOUCH_YSIZE,
-			pdata->y_line);
-
-	/* Set touchscreen orient */
-	qt602240_write_object(data, QT602240_TOUCH_MULTI, QT602240_TOUCH_ORIENT,
-			pdata->orient);
-
-	/* Set touchscreen burst length */
-	qt602240_write_object(data, QT602240_TOUCH_MULTI,
-			QT602240_TOUCH_BLEN, pdata->blen);
-
-	/* Set touchscreen threshold */
-	qt602240_write_object(data, QT602240_TOUCH_MULTI,
-			QT602240_TOUCH_TCHTHR, pdata->threshold);
-
-	/* Set touchscreen resolution */
-	qt602240_write_object(data, QT602240_TOUCH_MULTI,
-			QT602240_TOUCH_XRANGE_LSB, (pdata->x_size - 1) & 0xff);
-	qt602240_write_object(data, QT602240_TOUCH_MULTI,
-			QT602240_TOUCH_XRANGE_MSB, (pdata->x_size - 1) >> 8);
-	qt602240_write_object(data, QT602240_TOUCH_MULTI,
-			QT602240_TOUCH_YRANGE_LSB, (pdata->y_size - 1) & 0xff);
-	qt602240_write_object(data, QT602240_TOUCH_MULTI,
-			QT602240_TOUCH_YRANGE_MSB, (pdata->y_size - 1) >> 8);
-
-	/* Set touchscreen voltage */
-	if (data->info.version >= QT602240_VER_21 && pdata->voltage) {
-		if (pdata->voltage < QT602240_VOLTAGE_DEFAULT) {
-			voltage = (QT602240_VOLTAGE_DEFAULT - pdata->voltage) /
-				QT602240_VOLTAGE_STEP;
-			voltage = 0xff - voltage + 1;
-		} else
-			voltage = (pdata->voltage - QT602240_VOLTAGE_DEFAULT) /
-				QT602240_VOLTAGE_STEP;
-
-		qt602240_write_object(data, QT602240_SPT_CTECONFIG,
-				QT602240_CTE_VOLTAGE, voltage);
-	}
-}
-
-static int qt602240_get_info(struct qt602240_data *data)
-{
-	struct i2c_client *client = data->client;
-	struct qt602240_info *info = &data->info;
-	int error;
-	u8 val;
-
-	error = qt602240_read_reg(client, QT602240_FAMILY_ID, &val);
-	if (error)
-		return error;
-	info->family_id = val;
-
-	error = qt602240_read_reg(client, QT602240_VARIANT_ID, &val);
-	if (error)
-		return error;
-	info->variant_id = val;
-
-	error = qt602240_read_reg(client, QT602240_VERSION, &val);
-	if (error)
-		return error;
-	info->version = val;
-
-	error = qt602240_read_reg(client, QT602240_BUILD, &val);
-	if (error)
-		return error;
-	info->build = val;
-
-	error = qt602240_read_reg(client, QT602240_OBJECT_NUM, &val);
-	if (error)
-		return error;
-	info->object_num = val;
-
-	return 0;
-}
-
-static int qt602240_get_object_table(struct qt602240_data *data)
-{
-	int error;
-	int i;
-	u16 reg;
-	u8 reportid = 0;
-	u8 buf[QT602240_OBJECT_SIZE];
-
-	for (i = 0; i < data->info.object_num; i++) {
-		struct qt602240_object *object = data->object_table + i;
-
-		reg = QT602240_OBJECT_START + QT602240_OBJECT_SIZE * i;
-		error = qt602240_read_object_table(data->client, reg, buf);
-		if (error)
-			return error;
-
-		object->type = buf[0];
-		object->start_address = (buf[2] << 8) | buf[1];
-		object->size = buf[3];
-		object->instances = buf[4];
-		object->num_report_ids = buf[5];
-
-		if (object->num_report_ids) {
-			reportid += object->num_report_ids *
-					(object->instances + 1);
-			object->max_reportid = reportid;
-		}
-	}
-
-	return 0;
-}
-
-static int qt602240_initialize(struct qt602240_data *data)
-{
-	struct i2c_client *client = data->client;
-	struct qt602240_info *info = &data->info;
-	int error;
-	u8 val;
-
-	error = qt602240_get_info(data);
-	if (error)
-		return error;
-
-	data->object_table = kcalloc(info->object_num,
-				     sizeof(struct qt602240_object),
-				     GFP_KERNEL);
-	if (!data->object_table) {
-		dev_err(&client->dev, "Failed to allocate memory\n");
-		return -ENOMEM;
-	}
-
-	/* Get object table information */
-	error = qt602240_get_object_table(data);
-	if (error)
-		return error;
-
-	/* Check register init values */
-	error = qt602240_check_reg_init(data);
-	if (error)
-		return error;
-
-	/* Check X/Y matrix size */
-	error = qt602240_check_matrix_size(data);
-	if (error)
-		return error;
-
-	error = qt602240_make_highchg(data);
-	if (error)
-		return error;
-
-	qt602240_handle_pdata(data);
-
-	/* Backup to memory */
-	qt602240_write_object(data, QT602240_GEN_COMMAND,
-			QT602240_COMMAND_BACKUPNV,
-			QT602240_BACKUP_VALUE);
-	msleep(QT602240_BACKUP_TIME);
-
-	/* Soft reset */
-	qt602240_write_object(data, QT602240_GEN_COMMAND,
-			QT602240_COMMAND_RESET, 1);
-	msleep(QT602240_RESET_TIME);
-
-	/* Update matrix size at info struct */
-	error = qt602240_read_reg(client, QT602240_MATRIX_X_SIZE, &val);
-	if (error)
-		return error;
-	info->matrix_xsize = val;
-
-	error = qt602240_read_reg(client, QT602240_MATRIX_Y_SIZE, &val);
-	if (error)
-		return error;
-	info->matrix_ysize = val;
-
-	dev_info(&client->dev,
-			"Family ID: %d Variant ID: %d Version: %d Build: %d\n",
-			info->family_id, info->variant_id, info->version,
-			info->build);
-
-	dev_info(&client->dev,
-			"Matrix X Size: %d Matrix Y Size: %d Object Num: %d\n",
-			info->matrix_xsize, info->matrix_ysize,
-			info->object_num);
-
-	return 0;
-}
-
-static ssize_t qt602240_object_show(struct device *dev,
-				    struct device_attribute *attr, char *buf)
-{
-	struct qt602240_data *data = dev_get_drvdata(dev);
-	struct qt602240_object *object;
-	int count = 0;
-	int i, j;
-	int error;
-	u8 val;
-
-	for (i = 0; i < data->info.object_num; i++) {
-		object = data->object_table + i;
-
-		count += sprintf(buf + count,
-				"Object Table Element %d(Type %d)\n",
-				i + 1, object->type);
-
-		if (!qt602240_object_readable(object->type)) {
-			count += sprintf(buf + count, "\n");
-			continue;
-		}
-
-		for (j = 0; j < object->size + 1; j++) {
-			error = qt602240_read_object(data,
-						object->type, j, &val);
-			if (error)
-				return error;
-
-			count += sprintf(buf + count,
-					"  Byte %d: 0x%x (%d)\n", j, val, val);
-		}
-
-		count += sprintf(buf + count, "\n");
-	}
-
-	return count;
-}
-
-static int qt602240_load_fw(struct device *dev, const char *fn)
-{
-	struct qt602240_data *data = dev_get_drvdata(dev);
-	struct i2c_client *client = data->client;
-	const struct firmware *fw = NULL;
-	unsigned int frame_size;
-	unsigned int pos = 0;
-	int ret;
-
-	ret = request_firmware(&fw, fn, dev);
-	if (ret) {
-		dev_err(dev, "Unable to open firmware %s\n", fn);
-		return ret;
-	}
-
-	/* Change to the bootloader mode */
-	qt602240_write_object(data, QT602240_GEN_COMMAND,
-			QT602240_COMMAND_RESET, QT602240_BOOT_VALUE);
-	msleep(QT602240_RESET_TIME);
-
-	/* Change to slave address of bootloader */
-	if (client->addr == QT602240_APP_LOW)
-		client->addr = QT602240_BOOT_LOW;
-	else
-		client->addr = QT602240_BOOT_HIGH;
-
-	ret = qt602240_check_bootloader(client, QT602240_WAITING_BOOTLOAD_CMD);
-	if (ret)
-		goto out;
-
-	/* Unlock bootloader */
-	qt602240_unlock_bootloader(client);
-
-	while (pos < fw->size) {
-		ret = qt602240_check_bootloader(client,
-						QT602240_WAITING_FRAME_DATA);
-		if (ret)
-			goto out;
-
-		frame_size = ((*(fw->data + pos) << 8) | *(fw->data + pos + 1));
-
-		/* We should add 2 at frame size as the the firmware data is not
-		 * included the CRC bytes.
-		 */
-		frame_size += 2;
-
-		/* Write one frame to device */
-		qt602240_fw_write(client, fw->data + pos, frame_size);
-
-		ret = qt602240_check_bootloader(client,
-						QT602240_FRAME_CRC_PASS);
-		if (ret)
-			goto out;
-
-		pos += frame_size;
-
-		dev_dbg(dev, "Updated %d bytes / %zd bytes\n", pos, fw->size);
-	}
-
-out:
-	release_firmware(fw);
-
-	/* Change to slave address of application */
-	if (client->addr == QT602240_BOOT_LOW)
-		client->addr = QT602240_APP_LOW;
-	else
-		client->addr = QT602240_APP_HIGH;
-
-	return ret;
-}
-
-static ssize_t qt602240_update_fw_store(struct device *dev,
-					struct device_attribute *attr,
-					const char *buf, size_t count)
-{
-	struct qt602240_data *data = dev_get_drvdata(dev);
-	unsigned int version;
-	int error;
-
-	if (sscanf(buf, "%u", &version) != 1) {
-		dev_err(dev, "Invalid values\n");
-		return -EINVAL;
-	}
-
-	if (data->info.version < QT602240_VER_21 || version < QT602240_VER_21) {
-		dev_err(dev, "FW update supported starting with version 21\n");
-		return -EINVAL;
-	}
-
-	disable_irq(data->irq);
-
-	error = qt602240_load_fw(dev, QT602240_FW_NAME);
-	if (error) {
-		dev_err(dev, "The firmware update failed(%d)\n", error);
-		count = error;
-	} else {
-		dev_dbg(dev, "The firmware update succeeded\n");
-
-		/* Wait for reset */
-		msleep(QT602240_FWRESET_TIME);
-
-		kfree(data->object_table);
-		data->object_table = NULL;
-
-		qt602240_initialize(data);
-	}
-
-	enable_irq(data->irq);
-
-	return count;
-}
-
-static DEVICE_ATTR(object, 0444, qt602240_object_show, NULL);
-static DEVICE_ATTR(update_fw, 0664, NULL, qt602240_update_fw_store);
-
-static struct attribute *qt602240_attrs[] = {
-	&dev_attr_object.attr,
-	&dev_attr_update_fw.attr,
-	NULL
-};
-
-static const struct attribute_group qt602240_attr_group = {
-	.attrs = qt602240_attrs,
-};
-
-static void qt602240_start(struct qt602240_data *data)
-{
-	/* Touch enable */
-	qt602240_write_object(data,
-			QT602240_TOUCH_MULTI, QT602240_TOUCH_CTRL, 0x83);
-}
-
-static void qt602240_stop(struct qt602240_data *data)
-{
-	/* Touch disable */
-	qt602240_write_object(data,
-			QT602240_TOUCH_MULTI, QT602240_TOUCH_CTRL, 0);
-}
-
-static int qt602240_input_open(struct input_dev *dev)
-{
-	struct qt602240_data *data = input_get_drvdata(dev);
-
-	qt602240_start(data);
-
-	return 0;
-}
-
-static void qt602240_input_close(struct input_dev *dev)
-{
-	struct qt602240_data *data = input_get_drvdata(dev);
-
-	qt602240_stop(data);
-}
-
-static int __devinit qt602240_probe(struct i2c_client *client,
-		const struct i2c_device_id *id)
-{
-	struct qt602240_data *data;
-	struct input_dev *input_dev;
-	int error;
-
-	if (!client->dev.platform_data)
-		return -EINVAL;
-
-	data = kzalloc(sizeof(struct qt602240_data), GFP_KERNEL);
-	input_dev = input_allocate_device();
-	if (!data || !input_dev) {
-		dev_err(&client->dev, "Failed to allocate memory\n");
-		error = -ENOMEM;
-		goto err_free_mem;
-	}
-
-	input_dev->name = "AT42QT602240/ATMXT224 Touchscreen";
-	input_dev->id.bustype = BUS_I2C;
-	input_dev->dev.parent = &client->dev;
-	input_dev->open = qt602240_input_open;
-	input_dev->close = qt602240_input_close;
-
-	__set_bit(EV_ABS, input_dev->evbit);
-	__set_bit(EV_KEY, input_dev->evbit);
-	__set_bit(BTN_TOUCH, input_dev->keybit);
-
-	/* For single touch */
-	input_set_abs_params(input_dev, ABS_X,
-			     0, QT602240_MAX_XC, 0, 0);
-	input_set_abs_params(input_dev, ABS_Y,
-			     0, QT602240_MAX_YC, 0, 0);
-
-	/* For multi touch */
-	input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
-			     0, QT602240_MAX_AREA, 0, 0);
-	input_set_abs_params(input_dev, ABS_MT_POSITION_X,
-			     0, QT602240_MAX_XC, 0, 0);
-	input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
-			     0, QT602240_MAX_YC, 0, 0);
-
-	input_set_drvdata(input_dev, data);
-
-	data->client = client;
-	data->input_dev = input_dev;
-	data->pdata = client->dev.platform_data;
-	data->irq = client->irq;
-
-	i2c_set_clientdata(client, data);
-
-	error = qt602240_initialize(data);
-	if (error)
-		goto err_free_object;
-
-	error = request_threaded_irq(client->irq, NULL, qt602240_interrupt,
-			IRQF_TRIGGER_FALLING, client->dev.driver->name, data);
-	if (error) {
-		dev_err(&client->dev, "Failed to register interrupt\n");
-		goto err_free_object;
-	}
-
-	error = input_register_device(input_dev);
-	if (error)
-		goto err_free_irq;
-
-	error = sysfs_create_group(&client->dev.kobj, &qt602240_attr_group);
-	if (error)
-		goto err_unregister_device;
-
-	return 0;
-
-err_unregister_device:
-	input_unregister_device(input_dev);
-	input_dev = NULL;
-err_free_irq:
-	free_irq(client->irq, data);
-err_free_object:
-	kfree(data->object_table);
-err_free_mem:
-	input_free_device(input_dev);
-	kfree(data);
-	return error;
-}
-
-static int __devexit qt602240_remove(struct i2c_client *client)
-{
-	struct qt602240_data *data = i2c_get_clientdata(client);
-
-	sysfs_remove_group(&client->dev.kobj, &qt602240_attr_group);
-	free_irq(data->irq, data);
-	input_unregister_device(data->input_dev);
-	kfree(data->object_table);
-	kfree(data);
-
-	return 0;
-}
-
-#ifdef CONFIG_PM
-static int qt602240_suspend(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct qt602240_data *data = i2c_get_clientdata(client);
-	struct input_dev *input_dev = data->input_dev;
-
-	mutex_lock(&input_dev->mutex);
-
-	if (input_dev->users)
-		qt602240_stop(data);
-
-	mutex_unlock(&input_dev->mutex);
-
-	return 0;
-}
-
-static int qt602240_resume(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct qt602240_data *data = i2c_get_clientdata(client);
-	struct input_dev *input_dev = data->input_dev;
-
-	/* Soft reset */
-	qt602240_write_object(data, QT602240_GEN_COMMAND,
-			QT602240_COMMAND_RESET, 1);
-
-	msleep(QT602240_RESET_TIME);
-
-	mutex_lock(&input_dev->mutex);
-
-	if (input_dev->users)
-		qt602240_start(data);
-
-	mutex_unlock(&input_dev->mutex);
-
-	return 0;
-}
-
-static const struct dev_pm_ops qt602240_pm_ops = {
-	.suspend	= qt602240_suspend,
-	.resume		= qt602240_resume,
-};
-#endif
-
-static const struct i2c_device_id qt602240_id[] = {
-	{ "qt602240_ts", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, qt602240_id);
-
-static struct i2c_driver qt602240_driver = {
-	.driver = {
-		.name	= "qt602240_ts",
-		.owner	= THIS_MODULE,
-#ifdef CONFIG_PM
-		.pm	= &qt602240_pm_ops,
-#endif
-	},
-	.probe		= qt602240_probe,
-	.remove		= __devexit_p(qt602240_remove),
-	.id_table	= qt602240_id,
-};
-
-static int __init qt602240_init(void)
-{
-	return i2c_add_driver(&qt602240_driver);
-}
-
-static void __exit qt602240_exit(void)
-{
-	i2c_del_driver(&qt602240_driver);
-}
-
-module_init(qt602240_init);
-module_exit(qt602240_exit);
-
-/* Module information */
-MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
-MODULE_DESCRIPTION("AT42QT602240/ATMXT224 Touchscreen driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/tnetv107x-ts.c b/drivers/input/touchscreen/tnetv107x-ts.c
index cf1dba2e267c..22a3411e93c5 100644
--- a/drivers/input/touchscreen/tnetv107x-ts.c
+++ b/drivers/input/touchscreen/tnetv107x-ts.c
@@ -14,6 +14,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/err.h>
 #include <linux/errno.h>
 #include <linux/input.h>
 #include <linux/platform_device.h>
@@ -289,9 +290,9 @@ static int __devinit tsc_probe(struct platform_device *pdev)
 	}
 
 	ts->clk = clk_get(dev, NULL);
-	if (!ts->clk) {
+	if (IS_ERR(ts->clk)) {
 		dev_err(dev, "cannot claim device clock\n");
-		error = -EINVAL;
+		error = PTR_ERR(ts->clk);
 		goto error_clk;
 	}
 
diff --git a/drivers/input/touchscreen/tps6507x-ts.c b/drivers/input/touchscreen/tps6507x-ts.c
index c8c136cf7bbc..43031492d733 100644
--- a/drivers/input/touchscreen/tps6507x-ts.c
+++ b/drivers/input/touchscreen/tps6507x-ts.c
@@ -43,7 +43,6 @@ struct tps6507x_ts {
 	struct input_dev	*input_dev;
 	struct device		*dev;
 	char			phys[32];
-	struct workqueue_struct *wq;
 	struct delayed_work	work;
 	unsigned		polling;	/* polling is active */
 	struct ts_event		tc;
@@ -220,8 +219,8 @@ done:
 	poll = 1;
 
 	if (poll) {
-		schd = queue_delayed_work(tsc->wq, &tsc->work,
-					  msecs_to_jiffies(tsc->poll_period));
+		schd = schedule_delayed_work(&tsc->work,
+					msecs_to_jiffies(tsc->poll_period));
 		if (schd)
 			tsc->polling = 1;
 		else {
@@ -303,7 +302,6 @@ static int tps6507x_ts_probe(struct platform_device *pdev)
 	tsc->input_dev = input_dev;
 
 	INIT_DELAYED_WORK(&tsc->work, tps6507x_ts_handler);
-	tsc->wq = create_workqueue("TPS6507x Touchscreen");
 
 	if (init_data) {
 		tsc->poll_period = init_data->poll_period;
@@ -325,8 +323,8 @@ static int tps6507x_ts_probe(struct platform_device *pdev)
 	if (error)
 		goto err2;
 
-	schd = queue_delayed_work(tsc->wq, &tsc->work,
-				  msecs_to_jiffies(tsc->poll_period));
+	schd = schedule_delayed_work(&tsc->work,
+				     msecs_to_jiffies(tsc->poll_period));
 
 	if (schd)
 		tsc->polling = 1;
@@ -341,7 +339,6 @@ static int tps6507x_ts_probe(struct platform_device *pdev)
 
 err2:
 	cancel_delayed_work_sync(&tsc->work);
-	destroy_workqueue(tsc->wq);
 	input_free_device(input_dev);
 err1:
 	kfree(tsc);
@@ -357,7 +354,6 @@ static int __devexit tps6507x_ts_remove(struct platform_device *pdev)
 	struct input_dev *input_dev = tsc->input_dev;
 
 	cancel_delayed_work_sync(&tsc->work);
-	destroy_workqueue(tsc->wq);
 
 	input_unregister_device(input_dev);
 
diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c
new file mode 100644
index 000000000000..87420616efa4
--- /dev/null
+++ b/drivers/input/touchscreen/tsc2005.c
@@ -0,0 +1,756 @@
+/*
+ * TSC2005 touchscreen driver
+ *
+ * Copyright (C) 2006-2010 Nokia Corporation
+ *
+ * Author: Lauri Leukkunen <lauri.leukkunen@nokia.com>
+ * based on TSC2301 driver by Klaus K. Pedersen <klaus.k.pedersen@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/tsc2005.h>
+
+/*
+ * The touchscreen interface operates as follows:
+ *
+ * 1) Pen is pressed against the touchscreen.
+ * 2) TSC2005 performs AD conversion.
+ * 3) After the conversion is done TSC2005 drives DAV line down.
+ * 4) GPIO IRQ is received and tsc2005_irq_thread() is scheduled.
+ * 5) tsc2005_irq_thread() queues up an spi transfer to fetch the x, y, z1, z2
+ *    values.
+ * 6) tsc2005_irq_thread() reports coordinates to input layer and sets up
+ *    tsc2005_penup_timer() to be called after TSC2005_PENUP_TIME_MS (40ms).
+ * 7) When the penup timer expires, there have not been touch or DAV interrupts
+ *    during the last 40ms which means the pen has been lifted.
+ *
+ * ESD recovery via a hardware reset is done if the TSC2005 doesn't respond
+ * after a configurable period (in ms) of activity. If esd_timeout is 0, the
+ * watchdog is disabled.
+ */
+
+/* control byte 1 */
+#define TSC2005_CMD			0x80
+#define TSC2005_CMD_NORMAL		0x00
+#define TSC2005_CMD_STOP		0x01
+#define TSC2005_CMD_12BIT		0x04
+
+/* control byte 0 */
+#define TSC2005_REG_READ		0x0001
+#define TSC2005_REG_PND0		0x0002
+#define TSC2005_REG_X			0x0000
+#define TSC2005_REG_Y			0x0008
+#define TSC2005_REG_Z1			0x0010
+#define TSC2005_REG_Z2			0x0018
+#define TSC2005_REG_TEMP_HIGH		0x0050
+#define TSC2005_REG_CFR0		0x0060
+#define TSC2005_REG_CFR1		0x0068
+#define TSC2005_REG_CFR2		0x0070
+
+/* configuration register 0 */
+#define TSC2005_CFR0_PRECHARGE_276US	0x0040
+#define TSC2005_CFR0_STABTIME_1MS	0x0300
+#define TSC2005_CFR0_CLOCK_1MHZ		0x1000
+#define TSC2005_CFR0_RESOLUTION12	0x2000
+#define TSC2005_CFR0_PENMODE		0x8000
+#define TSC2005_CFR0_INITVALUE		(TSC2005_CFR0_STABTIME_1MS    | \
+					 TSC2005_CFR0_CLOCK_1MHZ      | \
+					 TSC2005_CFR0_RESOLUTION12    | \
+					 TSC2005_CFR0_PRECHARGE_276US | \
+					 TSC2005_CFR0_PENMODE)
+
+/* bits common to both read and write of configuration register 0 */
+#define	TSC2005_CFR0_RW_MASK		0x3fff
+
+/* configuration register 1 */
+#define TSC2005_CFR1_BATCHDELAY_4MS	0x0003
+#define TSC2005_CFR1_INITVALUE		TSC2005_CFR1_BATCHDELAY_4MS
+
+/* configuration register 2 */
+#define TSC2005_CFR2_MAVE_Z		0x0004
+#define TSC2005_CFR2_MAVE_Y		0x0008
+#define TSC2005_CFR2_MAVE_X		0x0010
+#define TSC2005_CFR2_AVG_7		0x0800
+#define TSC2005_CFR2_MEDIUM_15		0x3000
+#define TSC2005_CFR2_INITVALUE		(TSC2005_CFR2_MAVE_X	| \
+					 TSC2005_CFR2_MAVE_Y	| \
+					 TSC2005_CFR2_MAVE_Z	| \
+					 TSC2005_CFR2_MEDIUM_15	| \
+					 TSC2005_CFR2_AVG_7)
+
+#define MAX_12BIT			0xfff
+#define TSC2005_SPI_MAX_SPEED_HZ	10000000
+#define TSC2005_PENUP_TIME_MS		40
+
+struct tsc2005_spi_rd {
+	struct spi_transfer	spi_xfer;
+	u32			spi_tx;
+	u32			spi_rx;
+};
+
+struct tsc2005 {
+	struct spi_device	*spi;
+
+	struct spi_message      spi_read_msg;
+	struct tsc2005_spi_rd	spi_x;
+	struct tsc2005_spi_rd	spi_y;
+	struct tsc2005_spi_rd	spi_z1;
+	struct tsc2005_spi_rd	spi_z2;
+
+	struct input_dev	*idev;
+	char			phys[32];
+
+	struct mutex		mutex;
+
+	/* raw copy of previous x,y,z */
+	int			in_x;
+	int			in_y;
+	int                     in_z1;
+	int			in_z2;
+
+	spinlock_t		lock;
+	struct timer_list	penup_timer;
+
+	unsigned int		esd_timeout;
+	struct delayed_work	esd_work;
+	unsigned long		last_valid_interrupt;
+
+	unsigned int		x_plate_ohm;
+
+	bool			opened;
+	bool			suspended;
+
+	bool			pen_down;
+
+	void			(*set_reset)(bool enable);
+};
+
+static int tsc2005_cmd(struct tsc2005 *ts, u8 cmd)
+{
+	u8 tx = TSC2005_CMD | TSC2005_CMD_12BIT | cmd;
+	struct spi_transfer xfer = {
+		.tx_buf		= &tx,
+		.len		= 1,
+		.bits_per_word	= 8,
+	};
+	struct spi_message msg;
+	int error;
+
+	spi_message_init(&msg);
+	spi_message_add_tail(&xfer, &msg);
+
+	error = spi_sync(ts->spi, &msg);
+	if (error) {
+		dev_err(&ts->spi->dev, "%s: failed, command: %x, error: %d\n",
+			__func__, cmd, error);
+		return error;
+	}
+
+	return 0;
+}
+
+static int tsc2005_write(struct tsc2005 *ts, u8 reg, u16 value)
+{
+	u32 tx = ((reg | TSC2005_REG_PND0) << 16) | value;
+	struct spi_transfer xfer = {
+		.tx_buf		= &tx,
+		.len		= 4,
+		.bits_per_word	= 24,
+	};
+	struct spi_message msg;
+	int error;
+
+	spi_message_init(&msg);
+	spi_message_add_tail(&xfer, &msg);
+
+	error = spi_sync(ts->spi, &msg);
+	if (error) {
+		dev_err(&ts->spi->dev,
+			"%s: failed, register: %x, value: %x, error: %d\n",
+			__func__, reg, value, error);
+		return error;
+	}
+
+	return 0;
+}
+
+static void tsc2005_setup_read(struct tsc2005_spi_rd *rd, u8 reg, bool last)
+{
+	memset(rd, 0, sizeof(*rd));
+
+	rd->spi_tx		   = (reg | TSC2005_REG_READ) << 16;
+	rd->spi_xfer.tx_buf	   = &rd->spi_tx;
+	rd->spi_xfer.rx_buf	   = &rd->spi_rx;
+	rd->spi_xfer.len	   = 4;
+	rd->spi_xfer.bits_per_word = 24;
+	rd->spi_xfer.cs_change	   = !last;
+}
+
+static int tsc2005_read(struct tsc2005 *ts, u8 reg, u16 *value)
+{
+	struct tsc2005_spi_rd spi_rd;
+	struct spi_message msg;
+	int error;
+
+	tsc2005_setup_read(&spi_rd, reg, true);
+
+	spi_message_init(&msg);
+	spi_message_add_tail(&spi_rd.spi_xfer, &msg);
+
+	error = spi_sync(ts->spi, &msg);
+	if (error)
+		return error;
+
+	*value = spi_rd.spi_rx;
+	return 0;
+}
+
+static void tsc2005_update_pen_state(struct tsc2005 *ts,
+				     int x, int y, int pressure)
+{
+	if (pressure) {
+		input_report_abs(ts->idev, ABS_X, x);
+		input_report_abs(ts->idev, ABS_Y, y);
+		input_report_abs(ts->idev, ABS_PRESSURE, pressure);
+		if (!ts->pen_down) {
+			input_report_key(ts->idev, BTN_TOUCH, !!pressure);
+			ts->pen_down = true;
+		}
+	} else {
+		input_report_abs(ts->idev, ABS_PRESSURE, 0);
+		if (ts->pen_down) {
+			input_report_key(ts->idev, BTN_TOUCH, 0);
+			ts->pen_down = false;
+		}
+	}
+	input_sync(ts->idev);
+	dev_dbg(&ts->spi->dev, "point(%4d,%4d), pressure (%4d)\n", x, y,
+		pressure);
+}
+
+static irqreturn_t tsc2005_irq_thread(int irq, void *_ts)
+{
+	struct tsc2005 *ts = _ts;
+	unsigned long flags;
+	unsigned int pressure;
+	u32 x, y;
+	u32 z1, z2;
+	int error;
+
+	/* read the coordinates */
+	error = spi_sync(ts->spi, &ts->spi_read_msg);
+	if (unlikely(error))
+		goto out;
+
+	x = ts->spi_x.spi_rx;
+	y = ts->spi_y.spi_rx;
+	z1 = ts->spi_z1.spi_rx;
+	z2 = ts->spi_z2.spi_rx;
+
+	/* validate position */
+	if (unlikely(x > MAX_12BIT || y > MAX_12BIT))
+		goto out;
+
+	/* Skip reading if the pressure components are out of range */
+	if (unlikely(z1 == 0 || z2 > MAX_12BIT || z1 >= z2))
+		goto out;
+
+       /*
+	* Skip point if this is a pen down with the exact same values as
+	* the value before pen-up - that implies SPI fed us stale data
+	*/
+	if (!ts->pen_down &&
+	    ts->in_x == x && ts->in_y == y &&
+	    ts->in_z1 == z1 && ts->in_z2 == z2) {
+		goto out;
+	}
+
+	/*
+	 * At this point we are happy we have a valid and useful reading.
+	 * Remember it for later comparisons. We may now begin downsampling.
+	 */
+	ts->in_x = x;
+	ts->in_y = y;
+	ts->in_z1 = z1;
+	ts->in_z2 = z2;
+
+	/* Compute touch pressure resistance using equation #1 */
+	pressure = x * (z2 - z1) / z1;
+	pressure = pressure * ts->x_plate_ohm / 4096;
+	if (unlikely(pressure > MAX_12BIT))
+		goto out;
+
+	spin_lock_irqsave(&ts->lock, flags);
+
+	tsc2005_update_pen_state(ts, x, y, pressure);
+	mod_timer(&ts->penup_timer,
+		  jiffies + msecs_to_jiffies(TSC2005_PENUP_TIME_MS));
+
+	spin_unlock_irqrestore(&ts->lock, flags);
+
+	ts->last_valid_interrupt = jiffies;
+out:
+	return IRQ_HANDLED;
+}
+
+static void tsc2005_penup_timer(unsigned long data)
+{
+	struct tsc2005 *ts = (struct tsc2005 *)data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ts->lock, flags);
+	tsc2005_update_pen_state(ts, 0, 0, 0);
+	spin_unlock_irqrestore(&ts->lock, flags);
+}
+
+static void tsc2005_start_scan(struct tsc2005 *ts)
+{
+	tsc2005_write(ts, TSC2005_REG_CFR0, TSC2005_CFR0_INITVALUE);
+	tsc2005_write(ts, TSC2005_REG_CFR1, TSC2005_CFR1_INITVALUE);
+	tsc2005_write(ts, TSC2005_REG_CFR2, TSC2005_CFR2_INITVALUE);
+	tsc2005_cmd(ts, TSC2005_CMD_NORMAL);
+}
+
+static void tsc2005_stop_scan(struct tsc2005 *ts)
+{
+	tsc2005_cmd(ts, TSC2005_CMD_STOP);
+}
+
+/* must be called with ts->mutex held */
+static void __tsc2005_disable(struct tsc2005 *ts)
+{
+	tsc2005_stop_scan(ts);
+
+	disable_irq(ts->spi->irq);
+	del_timer_sync(&ts->penup_timer);
+
+	cancel_delayed_work_sync(&ts->esd_work);
+
+	enable_irq(ts->spi->irq);
+}
+
+/* must be called with ts->mutex held */
+static void __tsc2005_enable(struct tsc2005 *ts)
+{
+	tsc2005_start_scan(ts);
+
+	if (ts->esd_timeout && ts->set_reset) {
+		ts->last_valid_interrupt = jiffies;
+		schedule_delayed_work(&ts->esd_work,
+				round_jiffies(jiffies +
+					msecs_to_jiffies(ts->esd_timeout)));
+	}
+
+}
+
+static ssize_t tsc2005_selftest_show(struct device *dev,
+				     struct device_attribute *attr,
+				     char *buf)
+{
+	struct spi_device *spi = to_spi_device(dev);
+	struct tsc2005 *ts = spi_get_drvdata(spi);
+	u16 temp_high;
+	u16 temp_high_orig;
+	u16 temp_high_test;
+	bool success = true;
+	int error;
+
+	mutex_lock(&ts->mutex);
+
+	/*
+	 * Test TSC2005 communications via temp high register.
+	 */
+	__tsc2005_disable(ts);
+
+	error = tsc2005_read(ts, TSC2005_REG_TEMP_HIGH, &temp_high_orig);
+	if (error) {
+		dev_warn(dev, "selftest failed: read error %d\n", error);
+		success = false;
+		goto out;
+	}
+
+	temp_high_test = (temp_high_orig - 1) & MAX_12BIT;
+
+	error = tsc2005_write(ts, TSC2005_REG_TEMP_HIGH, temp_high_test);
+	if (error) {
+		dev_warn(dev, "selftest failed: write error %d\n", error);
+		success = false;
+		goto out;
+	}
+
+	error = tsc2005_read(ts, TSC2005_REG_TEMP_HIGH, &temp_high);
+	if (error) {
+		dev_warn(dev, "selftest failed: read error %d after write\n",
+			 error);
+		success = false;
+		goto out;
+	}
+
+	if (temp_high != temp_high_test) {
+		dev_warn(dev, "selftest failed: %d != %d\n",
+			 temp_high, temp_high_test);
+		success = false;
+	}
+
+	/* hardware reset */
+	ts->set_reset(false);
+	usleep_range(100, 500); /* only 10us required */
+	ts->set_reset(true);
+
+	if (!success)
+		goto out;
+
+	/* test that the reset really happened */
+	error = tsc2005_read(ts, TSC2005_REG_TEMP_HIGH, &temp_high);
+	if (error) {
+		dev_warn(dev, "selftest failed: read error %d after reset\n",
+			 error);
+		success = false;
+		goto out;
+	}
+
+	if (temp_high != temp_high_orig) {
+		dev_warn(dev, "selftest failed after reset: %d != %d\n",
+			 temp_high, temp_high_orig);
+		success = false;
+	}
+
+out:
+	__tsc2005_enable(ts);
+	mutex_unlock(&ts->mutex);
+
+	return sprintf(buf, "%d\n", success);
+}
+
+static DEVICE_ATTR(selftest, S_IRUGO, tsc2005_selftest_show, NULL);
+
+static struct attribute *tsc2005_attrs[] = {
+	&dev_attr_selftest.attr,
+	NULL
+};
+
+static mode_t tsc2005_attr_is_visible(struct kobject *kobj,
+				      struct attribute *attr, int n)
+{
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct spi_device *spi = to_spi_device(dev);
+	struct tsc2005 *ts = spi_get_drvdata(spi);
+	mode_t mode = attr->mode;
+
+	if (attr == &dev_attr_selftest.attr) {
+		if (!ts->set_reset)
+			mode = 0;
+	}
+
+	return mode;
+}
+
+static const struct attribute_group tsc2005_attr_group = {
+	.is_visible	= tsc2005_attr_is_visible,
+	.attrs		= tsc2005_attrs,
+};
+
+static void tsc2005_esd_work(struct work_struct *work)
+{
+	struct tsc2005 *ts = container_of(work, struct tsc2005, esd_work.work);
+	int error;
+	u16 r;
+
+	mutex_lock(&ts->mutex);
+
+	if (time_is_after_jiffies(ts->last_valid_interrupt +
+				  msecs_to_jiffies(ts->esd_timeout)))
+		goto out;
+
+	/* We should be able to read register without disabling interrupts. */
+	error = tsc2005_read(ts, TSC2005_REG_CFR0, &r);
+	if (!error &&
+	    !((r ^ TSC2005_CFR0_INITVALUE) & TSC2005_CFR0_RW_MASK)) {
+		goto out;
+	}
+
+	/*
+	 * If we could not read our known value from configuration register 0
+	 * then we should reset the controller as if from power-up and start
+	 * scanning again.
+	 */
+	dev_info(&ts->spi->dev, "TSC2005 not responding - resetting\n");
+
+	disable_irq(ts->spi->irq);
+	del_timer_sync(&ts->penup_timer);
+
+	tsc2005_update_pen_state(ts, 0, 0, 0);
+
+	ts->set_reset(false);
+	usleep_range(100, 500); /* only 10us required */
+	ts->set_reset(true);
+
+	enable_irq(ts->spi->irq);
+	tsc2005_start_scan(ts);
+
+out:
+	/* re-arm the watchdog */
+	schedule_delayed_work(&ts->esd_work,
+			      round_jiffies(jiffies +
+					msecs_to_jiffies(ts->esd_timeout)));
+	mutex_unlock(&ts->mutex);
+}
+
+static int tsc2005_open(struct input_dev *input)
+{
+	struct tsc2005 *ts = input_get_drvdata(input);
+
+	mutex_lock(&ts->mutex);
+
+	if (!ts->suspended)
+		__tsc2005_enable(ts);
+
+	ts->opened = true;
+
+	mutex_unlock(&ts->mutex);
+
+	return 0;
+}
+
+static void tsc2005_close(struct input_dev *input)
+{
+	struct tsc2005 *ts = input_get_drvdata(input);
+
+	mutex_lock(&ts->mutex);
+
+	if (!ts->suspended)
+		__tsc2005_disable(ts);
+
+	ts->opened = false;
+
+	mutex_unlock(&ts->mutex);
+}
+
+static void __devinit tsc2005_setup_spi_xfer(struct tsc2005 *ts)
+{
+	tsc2005_setup_read(&ts->spi_x, TSC2005_REG_X, false);
+	tsc2005_setup_read(&ts->spi_y, TSC2005_REG_Y, false);
+	tsc2005_setup_read(&ts->spi_z1, TSC2005_REG_Z1, false);
+	tsc2005_setup_read(&ts->spi_z2, TSC2005_REG_Z2, true);
+
+	spi_message_init(&ts->spi_read_msg);
+	spi_message_add_tail(&ts->spi_x.spi_xfer, &ts->spi_read_msg);
+	spi_message_add_tail(&ts->spi_y.spi_xfer, &ts->spi_read_msg);
+	spi_message_add_tail(&ts->spi_z1.spi_xfer, &ts->spi_read_msg);
+	spi_message_add_tail(&ts->spi_z2.spi_xfer, &ts->spi_read_msg);
+}
+
+static int __devinit tsc2005_probe(struct spi_device *spi)
+{
+	const struct tsc2005_platform_data *pdata = spi->dev.platform_data;
+	struct tsc2005 *ts;
+	struct input_dev *input_dev;
+	unsigned int max_x, max_y, max_p;
+	unsigned int fudge_x, fudge_y, fudge_p;
+	int error;
+
+	if (!pdata) {
+		dev_dbg(&spi->dev, "no platform data\n");
+		return -ENODEV;
+	}
+
+	fudge_x	= pdata->ts_x_fudge	   ? : 4;
+	fudge_y	= pdata->ts_y_fudge	   ? : 8;
+	fudge_p	= pdata->ts_pressure_fudge ? : 2;
+	max_x	= pdata->ts_x_max	   ? : MAX_12BIT;
+	max_y	= pdata->ts_y_max	   ? : MAX_12BIT;
+	max_p	= pdata->ts_pressure_max   ? : MAX_12BIT;
+
+	if (spi->irq <= 0) {
+		dev_dbg(&spi->dev, "no irq\n");
+		return -ENODEV;
+	}
+
+	spi->mode = SPI_MODE_0;
+	spi->bits_per_word = 8;
+	if (!spi->max_speed_hz)
+		spi->max_speed_hz = TSC2005_SPI_MAX_SPEED_HZ;
+
+	error = spi_setup(spi);
+	if (error)
+		return error;
+
+	ts = kzalloc(sizeof(*ts), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!ts || !input_dev) {
+		error = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	ts->spi = spi;
+	ts->idev = input_dev;
+
+	ts->x_plate_ohm	= pdata->ts_x_plate_ohm	? : 280;
+	ts->esd_timeout	= pdata->esd_timeout_ms;
+	ts->set_reset	= pdata->set_reset;
+
+	mutex_init(&ts->mutex);
+
+	spin_lock_init(&ts->lock);
+	setup_timer(&ts->penup_timer, tsc2005_penup_timer, (unsigned long)ts);
+
+	INIT_DELAYED_WORK(&ts->esd_work, tsc2005_esd_work);
+
+	tsc2005_setup_spi_xfer(ts);
+
+	snprintf(ts->phys, sizeof(ts->phys),
+		 "%s/input-ts", dev_name(&spi->dev));
+
+	input_dev->name = "TSC2005 touchscreen";
+	input_dev->phys = ts->phys;
+	input_dev->id.bustype = BUS_SPI;
+	input_dev->dev.parent = &spi->dev;
+	input_dev->evbit[0] = BIT(EV_ABS) | BIT(EV_KEY);
+	input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+	input_set_abs_params(input_dev, ABS_X, 0, max_x, fudge_x, 0);
+	input_set_abs_params(input_dev, ABS_Y, 0, max_y, fudge_y, 0);
+	input_set_abs_params(input_dev, ABS_PRESSURE, 0, max_p, fudge_p, 0);
+
+	input_dev->open = tsc2005_open;
+	input_dev->close = tsc2005_close;
+
+	input_set_drvdata(input_dev, ts);
+
+	/* Ensure the touchscreen is off */
+	tsc2005_stop_scan(ts);
+
+	error = request_threaded_irq(spi->irq, NULL, tsc2005_irq_thread,
+				     IRQF_TRIGGER_RISING, "tsc2005", ts);
+	if (error) {
+		dev_err(&spi->dev, "Failed to request irq, err: %d\n", error);
+		goto err_free_mem;
+	}
+
+	spi_set_drvdata(spi, ts);
+	error = sysfs_create_group(&spi->dev.kobj, &tsc2005_attr_group);
+	if (error) {
+		dev_err(&spi->dev,
+			"Failed to create sysfs attributes, err: %d\n", error);
+		goto err_clear_drvdata;
+	}
+
+	error = input_register_device(ts->idev);
+	if (error) {
+		dev_err(&spi->dev,
+			"Failed to register input device, err: %d\n", error);
+		goto err_remove_sysfs;
+	}
+
+	set_irq_wake(spi->irq, 1);
+	return 0;
+
+err_remove_sysfs:
+	sysfs_remove_group(&spi->dev.kobj, &tsc2005_attr_group);
+err_clear_drvdata:
+	spi_set_drvdata(spi, NULL);
+	free_irq(spi->irq, ts);
+err_free_mem:
+	input_free_device(input_dev);
+	kfree(ts);
+	return error;
+}
+
+static int __devexit tsc2005_remove(struct spi_device *spi)
+{
+	struct tsc2005 *ts = spi_get_drvdata(spi);
+
+	sysfs_remove_group(&ts->spi->dev.kobj, &tsc2005_attr_group);
+
+	free_irq(ts->spi->irq, ts);
+	input_unregister_device(ts->idev);
+	kfree(ts);
+
+	spi_set_drvdata(spi, NULL);
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int tsc2005_suspend(struct device *dev)
+{
+	struct spi_device *spi = to_spi_device(dev);
+	struct tsc2005 *ts = spi_get_drvdata(spi);
+
+	mutex_lock(&ts->mutex);
+
+	if (!ts->suspended && ts->opened)
+		__tsc2005_disable(ts);
+
+	ts->suspended = true;
+
+	mutex_unlock(&ts->mutex);
+
+	return 0;
+}
+
+static int tsc2005_resume(struct device *dev)
+{
+	struct spi_device *spi = to_spi_device(dev);
+	struct tsc2005 *ts = spi_get_drvdata(spi);
+
+	mutex_lock(&ts->mutex);
+
+	if (ts->suspended && ts->opened)
+		__tsc2005_enable(ts);
+
+	ts->suspended = false;
+
+	mutex_unlock(&ts->mutex);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(tsc2005_pm_ops, tsc2005_suspend, tsc2005_resume);
+
+static struct spi_driver tsc2005_driver = {
+	.driver	= {
+		.name	= "tsc2005",
+		.owner	= THIS_MODULE,
+		.pm	= &tsc2005_pm_ops,
+	},
+	.probe	= tsc2005_probe,
+	.remove	= __devexit_p(tsc2005_remove),
+};
+
+static int __init tsc2005_init(void)
+{
+	return spi_register_driver(&tsc2005_driver);
+}
+module_init(tsc2005_init);
+
+static void __exit tsc2005_exit(void)
+{
+	spi_unregister_driver(&tsc2005_driver);
+}
+module_exit(tsc2005_exit);
+
+MODULE_AUTHOR("Lauri Leukkunen <lauri.leukkunen@nokia.com>");
+MODULE_DESCRIPTION("TSC2005 Touchscreen Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c
index 5cb8449c909d..c14412ef4648 100644
--- a/drivers/input/touchscreen/wacom_w8001.c
+++ b/drivers/input/touchscreen/wacom_w8001.c
@@ -51,6 +51,10 @@ MODULE_LICENSE("GPL");
 #define W8001_PKTLEN_TPCCTL	11	/* control packet */
 #define W8001_PKTLEN_TOUCH2FG	13
 
+/* resolution in points/mm */
+#define W8001_PEN_RESOLUTION    100
+#define W8001_TOUCH_RESOLUTION  10
+
 struct w8001_coord {
 	u8 rdy;
 	u8 tsw;
@@ -198,7 +202,7 @@ static void parse_touchquery(u8 *data, struct w8001_touch_query *query)
 		query->y = 1024;
 		if (query->panel_res)
 			query->x = query->y = (1 << query->panel_res);
-		query->panel_res = 10;
+		query->panel_res = W8001_TOUCH_RESOLUTION;
 	}
 }
 
@@ -394,6 +398,8 @@ static int w8001_setup(struct w8001 *w8001)
 
 		input_set_abs_params(dev, ABS_X, 0, coord.x, 0, 0);
 		input_set_abs_params(dev, ABS_Y, 0, coord.y, 0, 0);
+		input_abs_set_res(dev, ABS_X, W8001_PEN_RESOLUTION);
+		input_abs_set_res(dev, ABS_Y, W8001_PEN_RESOLUTION);
 		input_set_abs_params(dev, ABS_PRESSURE, 0, coord.pen_pressure, 0, 0);
 		if (coord.tilt_x && coord.tilt_y) {
 			input_set_abs_params(dev, ABS_TILT_X, 0, coord.tilt_x, 0, 0);
@@ -418,14 +424,17 @@ static int w8001_setup(struct w8001 *w8001)
 		w8001->max_touch_x = touch.x;
 		w8001->max_touch_y = touch.y;
 
-		/* scale to pen maximum */
 		if (w8001->max_pen_x && w8001->max_pen_y) {
+			/* if pen is supported scale to pen maximum */
 			touch.x = w8001->max_pen_x;
 			touch.y = w8001->max_pen_y;
+			touch.panel_res = W8001_PEN_RESOLUTION;
 		}
 
 		input_set_abs_params(dev, ABS_X, 0, touch.x, 0, 0);
 		input_set_abs_params(dev, ABS_Y, 0, touch.y, 0, 0);
+		input_abs_set_res(dev, ABS_X, touch.panel_res);
+		input_abs_set_res(dev, ABS_Y, touch.panel_res);
 
 		switch (touch.sensor_id) {
 		case 0:
diff --git a/drivers/input/touchscreen/wm831x-ts.c b/drivers/input/touchscreen/wm831x-ts.c
new file mode 100644
index 000000000000..6ae054f8e0aa
--- /dev/null
+++ b/drivers/input/touchscreen/wm831x-ts.c
@@ -0,0 +1,368 @@
+/*
+ * Touchscreen driver for WM831x PMICs
+ *
+ * Copyright 2011 Wolfson Microelectronics plc.
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/pm.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/mfd/wm831x/core.h>
+#include <linux/mfd/wm831x/irq.h>
+#include <linux/mfd/wm831x/pdata.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+/*
+ * R16424 (0x4028) - Touch Control 1
+ */
+#define WM831X_TCH_ENA                          0x8000  /* TCH_ENA */
+#define WM831X_TCH_CVT_ENA                      0x4000  /* TCH_CVT_ENA */
+#define WM831X_TCH_SLPENA                       0x1000  /* TCH_SLPENA */
+#define WM831X_TCH_Z_ENA                        0x0400  /* TCH_Z_ENA */
+#define WM831X_TCH_Y_ENA                        0x0200  /* TCH_Y_ENA */
+#define WM831X_TCH_X_ENA                        0x0100  /* TCH_X_ENA */
+#define WM831X_TCH_DELAY_MASK                   0x00E0  /* TCH_DELAY - [7:5] */
+#define WM831X_TCH_DELAY_SHIFT                       5  /* TCH_DELAY - [7:5] */
+#define WM831X_TCH_DELAY_WIDTH                       3  /* TCH_DELAY - [7:5] */
+#define WM831X_TCH_RATE_MASK                    0x001F  /* TCH_RATE - [4:0] */
+#define WM831X_TCH_RATE_SHIFT                        0  /* TCH_RATE - [4:0] */
+#define WM831X_TCH_RATE_WIDTH                        5  /* TCH_RATE - [4:0] */
+
+/*
+ * R16425 (0x4029) - Touch Control 2
+ */
+#define WM831X_TCH_PD_WK                        0x2000  /* TCH_PD_WK */
+#define WM831X_TCH_5WIRE                        0x1000  /* TCH_5WIRE */
+#define WM831X_TCH_PDONLY                       0x0800  /* TCH_PDONLY */
+#define WM831X_TCH_ISEL                         0x0100  /* TCH_ISEL */
+#define WM831X_TCH_RPU_MASK                     0x000F  /* TCH_RPU - [3:0] */
+#define WM831X_TCH_RPU_SHIFT                         0  /* TCH_RPU - [3:0] */
+#define WM831X_TCH_RPU_WIDTH                         4  /* TCH_RPU - [3:0] */
+
+/*
+ * R16426-8 (0x402A-C) - Touch Data X/Y/X
+ */
+#define WM831X_TCH_PD                           0x8000  /* TCH_PD1 */
+#define WM831X_TCH_DATA_MASK                    0x0FFF  /* TCH_DATA - [11:0] */
+#define WM831X_TCH_DATA_SHIFT                        0  /* TCH_DATA - [11:0] */
+#define WM831X_TCH_DATA_WIDTH                       12  /* TCH_DATA - [11:0] */
+
+struct wm831x_ts {
+	struct input_dev *input_dev;
+	struct wm831x *wm831x;
+	unsigned int data_irq;
+	unsigned int pd_irq;
+	bool pressure;
+	bool pen_down;
+};
+
+static irqreturn_t wm831x_ts_data_irq(int irq, void *irq_data)
+{
+	struct wm831x_ts *wm831x_ts = irq_data;
+	struct wm831x *wm831x = wm831x_ts->wm831x;
+	static int data_types[] = { ABS_X, ABS_Y, ABS_PRESSURE };
+	u16 data[3];
+	int count;
+	int i, ret;
+
+	if (wm831x_ts->pressure)
+		count = 3;
+	else
+		count = 2;
+
+	wm831x_set_bits(wm831x, WM831X_INTERRUPT_STATUS_1,
+			WM831X_TCHDATA_EINT, WM831X_TCHDATA_EINT);
+
+	ret = wm831x_bulk_read(wm831x, WM831X_TOUCH_DATA_X, count,
+			       data);
+	if (ret != 0) {
+		dev_err(wm831x->dev, "Failed to read touch data: %d\n",
+			ret);
+		return IRQ_NONE;
+	}
+
+	/*
+	 * We get a pen down reading on every reading, report pen up if any
+	 * individual reading does so.
+	 */
+	wm831x_ts->pen_down = true;
+	for (i = 0; i < count; i++) {
+		if (!(data[i] & WM831X_TCH_PD)) {
+			wm831x_ts->pen_down = false;
+			continue;
+		}
+		input_report_abs(wm831x_ts->input_dev, data_types[i],
+				 data[i] & WM831X_TCH_DATA_MASK);
+	}
+
+	if (!wm831x_ts->pen_down) {
+		disable_irq_nosync(wm831x_ts->data_irq);
+
+		/* Don't need data any more */
+		wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1,
+				WM831X_TCH_X_ENA | WM831X_TCH_Y_ENA |
+				WM831X_TCH_Z_ENA, 0);
+
+		/* Flush any final samples that arrived while reading */
+		wm831x_set_bits(wm831x, WM831X_INTERRUPT_STATUS_1,
+				WM831X_TCHDATA_EINT, WM831X_TCHDATA_EINT);
+
+		wm831x_bulk_read(wm831x, WM831X_TOUCH_DATA_X, count, data);
+
+		if (wm831x_ts->pressure)
+			input_report_abs(wm831x_ts->input_dev,
+					 ABS_PRESSURE, 0);
+
+		input_report_key(wm831x_ts->input_dev, BTN_TOUCH, 0);
+	}
+
+	input_sync(wm831x_ts->input_dev);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t wm831x_ts_pen_down_irq(int irq, void *irq_data)
+{
+	struct wm831x_ts *wm831x_ts = irq_data;
+	struct wm831x *wm831x = wm831x_ts->wm831x;
+	int ena = 0;
+
+	/* Start collecting data */
+	if (wm831x_ts->pressure)
+		ena |= WM831X_TCH_Z_ENA;
+
+	wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1,
+			WM831X_TCH_X_ENA | WM831X_TCH_Y_ENA | WM831X_TCH_Z_ENA,
+			WM831X_TCH_X_ENA | WM831X_TCH_Y_ENA | ena);
+
+	input_report_key(wm831x_ts->input_dev, BTN_TOUCH, 1);
+	input_sync(wm831x_ts->input_dev);
+
+	wm831x_set_bits(wm831x, WM831X_INTERRUPT_STATUS_1,
+			WM831X_TCHPD_EINT, WM831X_TCHPD_EINT);
+
+	wm831x_ts->pen_down = true;
+	enable_irq(wm831x_ts->data_irq);
+
+	return IRQ_HANDLED;
+}
+
+static int wm831x_ts_input_open(struct input_dev *idev)
+{
+	struct wm831x_ts *wm831x_ts = input_get_drvdata(idev);
+	struct wm831x *wm831x = wm831x_ts->wm831x;
+
+	wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1,
+			WM831X_TCH_ENA | WM831X_TCH_CVT_ENA |
+			WM831X_TCH_X_ENA | WM831X_TCH_Y_ENA |
+			WM831X_TCH_Z_ENA, WM831X_TCH_ENA);
+
+	wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1,
+			WM831X_TCH_CVT_ENA, WM831X_TCH_CVT_ENA);
+
+	return 0;
+}
+
+static void wm831x_ts_input_close(struct input_dev *idev)
+{
+	struct wm831x_ts *wm831x_ts = input_get_drvdata(idev);
+	struct wm831x *wm831x = wm831x_ts->wm831x;
+
+	wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1,
+			WM831X_TCH_ENA | WM831X_TCH_CVT_ENA |
+			WM831X_TCH_X_ENA | WM831X_TCH_Y_ENA |
+			WM831X_TCH_Z_ENA, 0);
+
+	if (wm831x_ts->pen_down)
+		disable_irq(wm831x_ts->data_irq);
+}
+
+static __devinit int wm831x_ts_probe(struct platform_device *pdev)
+{
+	struct wm831x_ts *wm831x_ts;
+	struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
+	struct wm831x_pdata *core_pdata = dev_get_platdata(pdev->dev.parent);
+	struct wm831x_touch_pdata *pdata = NULL;
+	struct input_dev *input_dev;
+	int error;
+
+	if (core_pdata)
+		pdata = core_pdata->touch;
+
+	wm831x_ts = kzalloc(sizeof(struct wm831x_ts), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!wm831x_ts || !input_dev) {
+		error = -ENOMEM;
+		goto err_alloc;
+	}
+
+	wm831x_ts->wm831x = wm831x;
+	wm831x_ts->input_dev = input_dev;
+
+	/*
+	 * If we have a direct IRQ use it, otherwise use the interrupt
+	 * from the WM831x IRQ controller.
+	 */
+	if (pdata && pdata->data_irq)
+		wm831x_ts->data_irq = pdata->data_irq;
+	else
+		wm831x_ts->data_irq = platform_get_irq_byname(pdev, "TCHDATA");
+
+	if (pdata && pdata->pd_irq)
+		wm831x_ts->pd_irq = pdata->pd_irq;
+	else
+		wm831x_ts->pd_irq = platform_get_irq_byname(pdev, "TCHPD");
+
+	if (pdata)
+		wm831x_ts->pressure = pdata->pressure;
+	else
+		wm831x_ts->pressure = true;
+
+	/* Five wire touchscreens can't report pressure */
+	if (pdata && pdata->fivewire) {
+		wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_2,
+				WM831X_TCH_5WIRE, WM831X_TCH_5WIRE);
+
+		/* Pressure measurements are not possible for five wire mode */
+		WARN_ON(pdata->pressure && pdata->fivewire);
+		wm831x_ts->pressure = false;
+	} else {
+		wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_2,
+				WM831X_TCH_5WIRE, 0);
+	}
+
+	if (pdata) {
+		switch (pdata->isel) {
+		default:
+			dev_err(&pdev->dev, "Unsupported ISEL setting: %d\n",
+				pdata->isel);
+			/* Fall through */
+		case 200:
+		case 0:
+			wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_2,
+					WM831X_TCH_ISEL, 0);
+			break;
+		case 400:
+			wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_2,
+					WM831X_TCH_ISEL, WM831X_TCH_ISEL);
+			break;
+		}
+	}
+
+	wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_2,
+			WM831X_TCH_PDONLY, 0);
+
+	/* Default to 96 samples/sec */
+	wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1,
+			WM831X_TCH_RATE_MASK, 6);
+
+	error = request_threaded_irq(wm831x_ts->data_irq,
+				     NULL, wm831x_ts_data_irq,
+				     IRQF_ONESHOT,
+				     "Touchscreen data", wm831x_ts);
+	if (error) {
+		dev_err(&pdev->dev, "Failed to request data IRQ %d: %d\n",
+			wm831x_ts->data_irq, error);
+		goto err_alloc;
+	}
+	disable_irq(wm831x_ts->data_irq);
+
+	error = request_threaded_irq(wm831x_ts->pd_irq,
+				     NULL, wm831x_ts_pen_down_irq,
+				     IRQF_ONESHOT,
+				     "Touchscreen pen down", wm831x_ts);
+	if (error) {
+		dev_err(&pdev->dev, "Failed to request pen down IRQ %d: %d\n",
+			wm831x_ts->pd_irq, error);
+		goto err_data_irq;
+	}
+
+	/* set up touch configuration */
+	input_dev->name = "WM831x touchscreen";
+	input_dev->phys = "wm831x";
+	input_dev->open = wm831x_ts_input_open;
+	input_dev->close = wm831x_ts_input_close;
+
+	__set_bit(EV_ABS, input_dev->evbit);
+	__set_bit(EV_KEY, input_dev->evbit);
+	__set_bit(BTN_TOUCH, input_dev->keybit);
+
+	input_set_abs_params(input_dev, ABS_X, 0, 4095, 5, 0);
+	input_set_abs_params(input_dev, ABS_Y, 0, 4095, 5, 0);
+	if (wm831x_ts->pressure)
+		input_set_abs_params(input_dev, ABS_PRESSURE, 0, 4095, 5, 0);
+
+	input_set_drvdata(input_dev, wm831x_ts);
+	input_dev->dev.parent = &pdev->dev;
+
+	error = input_register_device(input_dev);
+	if (error)
+		goto err_pd_irq;
+
+	platform_set_drvdata(pdev, wm831x_ts);
+	return 0;
+
+err_pd_irq:
+	free_irq(wm831x_ts->pd_irq, wm831x_ts);
+err_data_irq:
+	free_irq(wm831x_ts->data_irq, wm831x_ts);
+err_alloc:
+	input_free_device(input_dev);
+	kfree(wm831x_ts);
+
+	return error;
+}
+
+static __devexit int wm831x_ts_remove(struct platform_device *pdev)
+{
+	struct wm831x_ts *wm831x_ts = platform_get_drvdata(pdev);
+
+	free_irq(wm831x_ts->pd_irq, wm831x_ts);
+	free_irq(wm831x_ts->data_irq, wm831x_ts);
+	input_unregister_device(wm831x_ts->input_dev);
+	kfree(wm831x_ts);
+
+	platform_set_drvdata(pdev, NULL);
+	return 0;
+}
+
+static struct platform_driver wm831x_ts_driver = {
+	.driver = {
+		.name = "wm831x-touch",
+		.owner = THIS_MODULE,
+	},
+	.probe = wm831x_ts_probe,
+	.remove = __devexit_p(wm831x_ts_remove),
+};
+
+static int __init wm831x_ts_init(void)
+{
+	return platform_driver_register(&wm831x_ts_driver);
+}
+module_init(wm831x_ts_init);
+
+static void __exit wm831x_ts_exit(void)
+{
+	platform_driver_unregister(&wm831x_ts_driver);
+}
+module_exit(wm831x_ts_exit);
+
+/* Module information */
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("WM831x PMIC touchscreen driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:wm831x-touch");