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The MIPI/HSP clocks were recently turned on in the i.MX51 clock tree.
It turned out that the system does not work properly when the MIPI/HSP
clocks are enabled, but the IPU clock is disabled. This happens when
IPU support is disabled. In this case the IPU clock gets disabled when
the clock framework turns off unused clock in a late_initcall. This
is broken since:
| commit 9a2d4825a9368e018003a2732a61be063d178f67
| Author: Sascha Hauer <s.hauer@pengutronix.de>
| Date: Tue Jun 5 13:53:32 2012 +0200
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| ARM i.MX5: switch IPU clk support to devicetree bindings
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| The i.MX5 clk support has platform based clock bindings for the
| IPU. IPU support is devicetree only, so move them over to devicetree
| based bindings. Also, enable MIPI clocks which do not have a device
| associated with, but still need to be enabled to do graphics on
| i.MX51.
This patch fixes this by setting some reserved bits in the CCM as recommended
in the reference manual.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
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Similarly as it was done for mx6q, use a DT lookup in order to make maintainance
task for the clock devices easier.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The i.MX5 clk support has platform based clock bindings for the
IPU. IPU support is devicetree only, so move them over to devicetree
based bindings. Also, enable MIPI clocks which do not have a device
associated with, but still need to be enabled to do graphics on
i.MX51.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
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This patch enables support for i.MX53 in addition to i.MX25 by providing a
dummy clock on i.MX53 since this one doesn't have a separate clock for internal
RTC but the driver requests one.
Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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It moves a bunch of header files included in hardware.h and itself
from mach-imx/include/mach to mach-imx, and updates users to include
hardware.h rather than mach/hardware.h. The files in mach-imx/devices
will need to include "../hardware.h".
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
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It changes the driver to use platform_device_id rather than cpu_is_xxx
to determine the controller type, and updates the platform code
accordingly.
As the result, mach/hardware.h inclusion gets removed from the driver.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Cc: linux-mtd@lists.infradead.org
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This is some amount of work left/forgot from device tree conversion.
Instead of checking cpu_is_xxx to determine the controller type, the
driver should use platform_device_id, which should match the device
tree compatible string.
The patch changes the driver to use platform_device_id rather than
cpu_is_xxx to determine the controller type/version. It also updates
the platform code and device tree source accordingly.
As the result, mach/hardware.h inclusion gets removed from the driver.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Wolfram Sang <w.sang@pengutronix.de>
Cc: linux-i2c@vger.kernel.org
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Rename mach-imx/include/mach/common.h to mach-imx/common.h and update
all users to include common.h rather than mach/common.h.
It also removes an unneeded inclusion to common.h in
mach-imx/devices/devices.c.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
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git://git.infradead.org/users/dhowells/linux-headers
UAPI Disintegration 2012-10-09
Conflicts:
MAINTAINERS
arch/arm/configs/bcmring_defconfig
arch/arm/mach-imx/clk-imx51-imx53.c
drivers/mtd/nand/Kconfig
drivers/mtd/nand/bcm_umi_nand.c
drivers/mtd/nand/nand_bcm_umi.h
drivers/mtd/nand/orion_nand.c
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Pull ARM soc-specific updates from Olof Johansson:
"Most notable here is probably the addition of basic support for the
BCM2835, an SoC used in some of the Roku 2 players as well as the
much-hyped Raspberry Pi, cleaned up and contributed by Stephen Warren.
It's still early days on mainline support, with just the basics
working. But it has to start somewhere!
Beyond that there's some conversions of clock infrastructure on tegra
to common clock, misc updates for several other platforms, and OMAP
now has its own bus (under drivers/bus) to manage its devices through.
This branch adds two new directories outside of arch/arm:
drivers/irqchip for new irq controllers, and drivers/bus for the above
OMAP bus. It's expected that some of the other platforms will migrate
parts of their platforms to those directories over time as well."
Fix up trivial conflicts with the clk infrastructure changes.
* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (62 commits)
ARM: shmobile: add new __iomem annotation for new code
ARM: LPC32xx: Support GPI 28
ARM: LPC32xx: Platform update for devicetree completion of spi-pl022
ARM: LPC32xx: Board cleanup
irqchip: fill in empty Kconfig
ARM: SAMSUNG: Add check for NULL in clock interface
ARM: EXYNOS: Put PCM, Slimbus, Spdif clocks to off state
ARM: EXYNOS: Add bus clock for FIMD
ARM: SAMSUNG: Fix HDMI related warnings
ARM: S3C24XX: Add .get_rate callback for "camif-upll" clock
ARM: EXYNOS: Fix incorrect help text
ARM: EXYNOS: Turn off clocks for NAND, OneNAND and TSI controllers
ARM: OMAP: AM33xx hwmod: fixup SPI after platform_data move
MAINTAINERS: add an entry for the BCM2835 ARM sub-architecture
ARM: bcm2835: instantiate console UART
ARM: bcm2835: add stub clock driver
ARM: bcm2835: add system timer
ARM: bcm2835: add interrupt controller driver
ARM: add infra-structure for BCM2835 and Raspberry Pi
ARM: tegra20: add CPU hotplug support
...
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ARM i.MX SoC updates
* tag 'imx-soc' of git://git.pengutronix.de/git/imx/linux-2.6:
ARM: i.MX35: Implement camera and keypad clocks
ARM: mxc: ssi-fiq: Make ssi-fiq.S Thumb-2 compatible
ARM i.MX53: register CAN clocks
arm imx31: add a few pinmux settings the tt01 needs
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next/cleanup
ARM i.MX cleanup patches
* tag 'imx-cleanup' of git://git.pengutronix.de/git/imx/linux-2.6:
ARM i.MX53 clk: Fix ldb parent clocks
serial/imx: fix IMX UART macro usage to reflect correct processor
ARM: i.MX remove last leftovers from legacy clock support
ARM: i.MX clk pllv1: move mxc_decode_pll code to its user
ARM: imx27-phytec-phycore: Fix I2C EEPROM address
ARM i.MX mx2_camera: Remove MX2_CAMERA_SWAP16 and MX2_CAMERA_PACK_DIR_MSB flags.
ARM i.MX: remove duplicated include from clk-imx21.c
ARM: plat-mxc: Remove unused imx_ioremap
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The ipu_di0 and ipu_di1 muxes referenced to nonexisting clocks. Use
ldb_di0_gate and ldb_di1_gate instead.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Having missed the merge window, update to 3.6-rc2 to avoid conflicts with
new patches.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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From: Sascha Hauer <s.hauer@pengutronix.de>
This adds the clocks for the flexcans on the imx53.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The imx5 common clock migration causes a regression with smsc911x
driver on imx53-ard board, where a smsc lan9220 controller gets
connected on imx53 with EIM interface. EIM needs clock emi_slow_gate
to be functional. In the new imx5 clock driver, there is no use count
incremented for the clock by enabling it, so the framework closes the
clock at late init time and makes EIM stop working then.
Enable emi_slow_gate in clock driver initialization to fix the
regression.
Cc: stable@vger.kernel.org
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
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Pull arm-soc clk changes from Arnd Bergmann:
"Clock support is moving to the clk subsystem. These tegra, omap and
imx changes are for code that is still platform specific and not (yet)
part of that subsystem."
Fix up conflicts in arch/arm/mach-{imx/clk-imx51-imx53.c,omap2/Makefile}
* tag 'clk' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (23 commits)
ARM: imx: clk-imx31: Fix clock id for rnga driver
ARM: imx: add missing item to the list of clock event modes
ARM: i.MX5x CSPI: Fixed clock name for CSPI
ARM: i.MX5x clocks: Fix GPT clocks
ARM: i.MX5x clocks: Fix parent for PWM clocks
ARM: i.MX5x clocks: Add EPIT support
ARM: mx27: Reenable silicon version print
ARM: clk-imx27: Fix rtc clock id
ARM: tegra: Provide clock for only one PWM controller
ARM: tegra: Fix PWM clock programming
ARM: OMAP3+: clock33xx: Add AM33XX clock tree data
ARM: OMAP3+: clock: Move common clksel_rate & clock data to common file
ARM: tegra: dma: rename driver name for clock to "tegra-apbdma"
ARM: tegra: Remove second instance of uart clk
crypto: add clk_prepare/clk_unprepare
ASoC: tegra: add clk_prepare/clk_unprepare
staging: nvec: add clk_prepare/clk_unprepare
spi/tegra: add clk_prepare/clk_unprepare
Input: tegra-kbc - add clk_prepare/clk_unprepare
USB: ehci-tegra: add clk_prepare/clk_unprepare
...
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This patch also includes fix CSPI ID for i.MX53. ID should be 2,
because IDs 0 and 1 are occupied by eCSPI.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This patch fix incorrect defined bits for GPT clocks according to datasheet.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This patch adds support for Enhanced Periodic Interrupt Timer (EPIT)
to clock subsystem.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This adds snippets to the i.MX51/53 devicetrees for the nand
flash controller.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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* imx/cpuidle:
ARM: imx: Add imx6q cpuidle driver
ARM: imx: Add imx5 cpuidle
ARM: imx: Add common imx cpuidle init functionality.
ARM: imx: Enable imx53 low power idle
ARM: imx: clean and consolidate imx5 suspend and idle code
ARM: imx: Add comments to tzic_enable_waker()
ARM: imx: Modify IMX_IO_P2V macro
Resolved trivial context conflict in arch/arm/plat-mxc/include/mach/common.h
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.pengutronix.de/git/imx/linux-2.6 into fixes
From Sascha Hauer: "Some fixes for the fresh i.MX common clock support"
Resolved trivial conflict in arch/arm/plat-mxc/include/mach/common.h.
* tag 'imx-clk-common-fixes' of git://git.pengutronix.de/git/imx/linux-2.6:
ARM: imx6q: prepare and enable init on clks directly instead of clk_get first
ARM i.MX: remove now unnecessary argument from mxc_timer_init
ARM: i.MX: change timer clock from ipg to perclk
ARM i.MX5: fix gpt peripheral clock path
Signed-off-by: Olof Johansson <olof@lixom.net>
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Add various functionality needed to enable a imx53 low power idle
state. This includes adding the imx53 gpc_dvfs clock and making a
common imx5_late_init function and initializing all imx53
MACHINE_STATE late_init calls to imx5_late_init.
Signed-off-by: Robert Lee <rob.lee@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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As the timer code now does a clk_get to get its clock we don't
need the struct clk argument anymore.
This also changes the alternative EPIT timer to do a clk_get.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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- The gpt peripheral clk parent is per_root, not ipg
- The register for selectin per_lp_apm and per_root is
MXC_CCM_CBCMR, not MXC_CCM_CBCDR
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Add more imx5 ssi clocks and lookup for device tree probe.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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