Commit Graph

1088 Commits

Author SHA1 Message Date
Jingoo Han 626d65aa52 watchdog: bcm63xx_wdt: use devm_ioremap_nocache()
Use devm_ioremap_nocache() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-07-11 20:53:44 +02:00
Sachin Kamat 321e31231d watchdog: at32ap700x: Remove redundant platform_set_drvdata()
Commit 0998d06310 (device-core: Ensure drvdata = NULL when no
driver is bound) removes the need to set driver data field to
NULL.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-07-11 20:52:42 +02:00
Jingoo Han a7960784e9 watchdog: at32ap700x_wdt: use devm_*() functions
Use devm_*() functions to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-07-11 20:52:30 +02:00
Linus Torvalds 3aa78e0cb5 For the 3.11 merge we only have one new MFD driver for the Kontron PLD.
But we also have:
 
 - Support for the TPS659038 PMIC from the palmas driver.
 
 - Intel's Coleto Creek and Avoton SoCs support from the lpc_ich driver.
 
 - RTL8411B support from the rtsx driver.
 
 - More DT support for the Arizona, max8998, twl4030-power and the
   ti_am335x_tsadc drivers.
 
 - The SSBI driver move under MFD.
 
 - A conversion to the devm_* API for most of the MFD drivers.
 
 - The twl4030-power got split from twl-core into its own module.
 
 - A major ti_am335x_adc cleanup, leading to a proper DT support.
 
 - Our regular arizona and wm* updates and cleanups from the Wolfson
   folks.
 
 - A better error handling and initialization, and a regulator subdevice
   addition for the 88pm80x driver.
 
 - A bulk platform_set_drvdata() call removal that's no longer need since
   commit 0998d063.
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Merge tag 'mfd-3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next

Pull MFD update from Samuel Ortiz:
 "For the 3.11 merge we only have one new MFD driver for the Kontron
  PLD.

  But we also have:
   - Support for the TPS659038 PMIC from the palmas driver.
   - Intel's Coleto Creek and Avoton SoCs support from the lpc_ich
     driver.
   - RTL8411B support from the rtsx driver.
   - More DT support for the Arizona, max8998, twl4030-power and the
     ti_am335x_tsadc drivers.
   - The SSBI driver move under MFD.
   - A conversion to the devm_* API for most of the MFD drivers.
   - The twl4030-power got split from twl-core into its own module.
   - A major ti_am335x_adc cleanup, leading to a proper DT support.
   - Our regular arizona and wm* updates and cleanups from the Wolfson
     folks.
   - A better error handling and initialization, and a regulator
     subdevice addition for the 88pm80x driver.
   - A bulk platform_set_drvdata() call removal that's no longer need
     since commit 0998d06310 ("device-core: Ensure drvdata = NULL when
     no driver is bound")

* tag 'mfd-3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next: (102 commits)
  mfd: sec: Provide max_register to regmap
  mfd: wm8994: Remove duplicate check for active JACKDET
  MAINTAINERS: Add include directory to MFD file patterns
  mfd: sec: Remove fields not used since regmap conversion
  watchdog: Kontron PLD watchdog timer driver
  mfd: max8998: Add support for Device Tree
  regulator: max8998: Use arrays for specifying voltages in platform data
  mfd: max8998: Add irq domain support
  regulator: palmas: Add TPS659038 support
  mfd: Kontron PLD mfd driver
  mfd: palmas: Add TPS659038 PMIC support
  mfd: palmas: Add SMPS10_BOOST feature
  mfd: palmas: Check if irq is valid
  mfd: lpc_ich: iTCO_wdt patch for Intel Coleto Creek DeviceIDs
  mfd: twl-core: Change TWL6025 references to TWL6032
  mfd: davinci_voicecodec: Fix build breakage
  mfd: vexpress: Make the driver optional for arm and arm64
  mfd: htc-egpio: Use devm_ioremap_nocache() instead of ioremap_nocache()
  mfd: davinci_voicecodec: Convert to use devm_* APIs
  mfd: twl4030-power: Fix relocking on error
  ...
2013-07-10 11:10:27 -07:00
Linus Torvalds 65b97fb730 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc updates from Ben Herrenschmidt:
 "This is the powerpc changes for the 3.11 merge window.  In addition to
  the usual bug fixes and small updates, the main highlights are:

   - Support for transparent huge pages by Aneesh Kumar for 64-bit
     server processors.  This allows the use of 16M pages as transparent
     huge pages on kernels compiled with a 64K base page size.

   - Base VFIO support for KVM on power by Alexey Kardashevskiy

   - Wiring up of our nvram to the pstore infrastructure, including
     putting compressed oopses in there by Aruna Balakrishnaiah

   - Move, rework and improve our "EEH" (basically PCI error handling
     and recovery) infrastructure.  It is no longer specific to pseries
     but is now usable by the new "powernv" platform as well (no
     hypervisor) by Gavin Shan.

   - I fixed some bugs in our math-emu instruction decoding and made it
     usable to emulate some optional FP instructions on processors with
     hard FP that lack them (such as fsqrt on Freescale embedded
     processors).

   - Support for Power8 "Event Based Branch" facility by Michael
     Ellerman.  This facility allows what is basically "userspace
     interrupts" for performance monitor events.

   - A bunch of Transactional Memory vs.  Signals bug fixes and HW
     breakpoint/watchpoint fixes by Michael Neuling.

  And more ...  I appologize in advance if I've failed to highlight
  something that somebody deemed worth it."

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (156 commits)
  pstore: Add hsize argument in write_buf call of pstore_ftrace_call
  powerpc/fsl: add MPIC timer wakeup support
  powerpc/mpic: create mpic subsystem object
  powerpc/mpic: add global timer support
  powerpc/mpic: add irq_set_wake support
  powerpc/85xx: enable coreint for all the 64bit boards
  powerpc/8xx: Erroneous double irq_eoi() on CPM IRQ in MPC8xx
  powerpc/fsl: Enable CONFIG_E1000E in mpc85xx_smp_defconfig
  powerpc/mpic: Add get_version API both for internal and external use
  powerpc: Handle both new style and old style reserve maps
  powerpc/hw_brk: Fix off by one error when validating DAWR region end
  powerpc/pseries: Support compression of oops text via pstore
  powerpc/pseries: Re-organise the oops compression code
  pstore: Pass header size in the pstore write callback
  powerpc/powernv: Fix iommu initialization again
  powerpc/pseries: Inform the hypervisor we are using EBB regs
  powerpc/perf: Add power8 EBB support
  powerpc/perf: Core EBB support for 64-bit book3s
  powerpc/perf: Drop MMCRA from thread_struct
  powerpc/perf: Don't enable if we have zero events
  ...
2013-07-04 10:29:23 -07:00
Linus Torvalds 3883cbb6c1 ARM SoC specific changes
These changes are all to SoC-specific code, a total of 33 branches on
 17 platforms were pulled into this. Like last time, Renesas sh-mobile
 is now the platform with the most changes, followed by OMAP and EXYNOS.
 
 Two new platforms, TI Keystone and Rockchips RK3xxx are added in
 this branch, both containing almost no platform specific code at all,
 since they are using generic subsystem interfaces for clocks, pinctrl,
 interrupts etc. The device drivers are getting merged through the
 respective subsystem maintainer trees.
 
 One more SoC (u300) is now multiplatform capable and several others
 (shmobile, exynos, msm, integrator, kirkwood, clps711x) are moving
 towards that goal with this series but need more work.
 
 Also noteworthy is the work on PCI here, which is traditionally part of
 the SoC specific code. With the changes done by Thomas Petazzoni, we can
 now more easily have PCI host controller drivers as loadable modules and
 keep them separate from the platform code in drivers/pci/host. This has
 already led to the discovery that three platforms (exynos, spear and imx)
 are actually using an identical PCIe host controller and will be able
 to share a driver once support for spear and imx is added.
 
 Conflicts:
 * asm/glue-proc.h has one CPU type getting added that conflicts
   with another addition in 3.10-rc7
 * Simple context changes in arch/arm/Makefile and arch/arm/Kconfig
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Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC specific changes from Arnd Bergmann:
 "These changes are all to SoC-specific code, a total of 33 branches on
  17 platforms were pulled into this.  Like last time, Renesas sh-mobile
  is now the platform with the most changes, followed by OMAP and
  EXYNOS.

  Two new platforms, TI Keystone and Rockchips RK3xxx are added in this
  branch, both containing almost no platform specific code at all, since
  they are using generic subsystem interfaces for clocks, pinctrl,
  interrupts etc.  The device drivers are getting merged through the
  respective subsystem maintainer trees.

  One more SoC (u300) is now multiplatform capable and several others
  (shmobile, exynos, msm, integrator, kirkwood, clps711x) are moving
  towards that goal with this series but need more work.

  Also noteworthy is the work on PCI here, which is traditionally part
  of the SoC specific code.  With the changes done by Thomas Petazzoni,
  we can now more easily have PCI host controller drivers as loadable
  modules and keep them separate from the platform code in
  drivers/pci/host.  This has already led to the discovery that three
  platforms (exynos, spear and imx) are actually using an identical PCIe
  host controller and will be able to share a driver once support for
  spear and imx is added."

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (480 commits)
  ARM: integrator: let pciv3 use mem/premem from device tree
  ARM: integrator: set local side PCI addresses right
  ARM: dts: Add pcie controller node for exynos5440-ssdk5440
  ARM: dts: Add pcie controller node for Samsung EXYNOS5440 SoC
  ARM: EXYNOS: Enable PCIe support for Exynos5440
  pci: Add PCIe driver for Samsung Exynos
  ARM: OMAP5: voltagedomain data: remove temporary OMAP4 voltage data
  ARM: keystone: Move CPU bringup code to dedicated asm file
  ARM: multiplatform: always pick one CPU type
  ARM: imx: select syscon for IMX6SL
  ARM: keystone: select ARM_ERRATA_798181 only for SMP
  ARM: imx: Synertronixx scb9328 needs to select SOC_IMX1
  ARM: OMAP2+: AM43x: resolve SMP related build error
  dmaengine: edma: enable build for AM33XX
  ARM: edma: Add EDMA crossbar event mux support
  ARM: edma: Add DT and runtime PM support to the private EDMA API
  dmaengine: edma: Add TI EDMA device tree binding
  arm: add basic support for Rockchip RK3066a boards
  arm: add debug uarts for rockchip rk29xx and rk3xxx series
  arm: Add basic clocks for Rockchip rk3066a SoCs
  ...
2013-07-02 13:43:38 -07:00
Kevin Strasser e51c288ea1 watchdog: Kontron PLD watchdog timer driver
Add watchdog timer support for the on-board PLD found on some Kontron
embedded modules.

Originally-From: Michael Brunner <michael.brunner@kontron.com>
Signed-off-by: Kevin Strasser <kevin.strasser@linux.intel.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Darren Hart <dvhart@linux.intel.com>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-06-30 23:30:06 +02:00
Tudor Laurentiu 3978bdb4ed powerpc/watchdog: Don't enable interrupt on PPC64 BookE
Critical interrupts are not handled on PPC64 BookE machines,
so when the first watchdog interrupt fires the machine will
freeze without a warning until it's rebooted by the second
watchdog trigger.
Plus, the interrupt isn't used anyway since the driver
expects a usermode app to ping the watchdog periodically.

Signed-off-by: Laurentiu Tudor <Laurentiu.Tudor@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2013-06-25 18:14:45 -05:00
Ralf Baechle cd6cbde6b0 WATCHDOG: sb_wdog: Fix 32 bit build failure
Fixes the following linking problem:
drivers/watchdog/sb_wdog.c:211: undefined reference to `__udivdi3'

This results from reading a 64 bit register, then dividing the value by
1000000.  For 32 bit kernels gcc will use the helper function __udivdi3
from libgcc which the kernel intentionally doesn't provide.

In the read registerbits 23..63 are always zero and only bits 0..22 are
signficant.  So a simple cast to truncate the read value to 32 bits
fixes the issue.

Reported and initial patch by Markos Chandras <markos.chandras@imgtec.com>.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Reported-by: Markos Chandras <markos.chandras@imgtec.com>
2013-06-21 18:07:03 +02:00
Arnd Bergmann c3b693d1d6 Device Tree and Multiplatform support for U300:
- Add devicetree support to timer, pinctrl (probe), I2C block,
   watchdog, DMA controller and clocks.
 - Piecewise add a device tree containing all peripherals.
 - Delete the ATAG boot path.
 - Delete redundant platform data and board files.
 - Convert to multiplatform.
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Merge tag 'u300-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/soc

From Linus Walleij:

Device Tree and Multiplatform support for U300:
- Add devicetree support to timer, pinctrl (probe), I2C block,
  watchdog, DMA controller and clocks.
- Piecewise add a device tree containing all peripherals.
- Delete the ATAG boot path.
- Delete redundant platform data and board files.
- Convert to multiplatform.

* tag 'u300-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson: (40 commits)
  ARM: u300: switch to using syscon regmap for board
  ARM: u300: Update MMC configs for u300 defconfig
  spi: pl022: use DMA by default when probing from DT
  pinctrl: get rid of all platform data for coh901
  ARM: u300: convert MMC/SD clock to device tree
  ARM: u300: move the gated system controller clocks to DT
  i2c: stu300: do not request a specific clock name
  clk: move the U300 fixed and fixed-factor to DT
  ARM: u300: remove register definition file
  ARM: u300: add syscon node
  ARM: u300 use module_spi_driver to register driver
  ARM: u300: delete remnant machine headers
  ARM: u300: convert to multiplatform
  ARM: u300: localize <mach/u300-regs.h>
  ARM: u300: delete <mach/irqs.h>
  ARM: u300: delete <mach/hardware.h>
  ARM: u300: push down syscon registers
  ARM: u300: remove deps from debug macro
  ARM: u300: move debugmacro to debug includes
  ARM: u300: delete all static board data
  ...

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20 01:51:18 +02:00
Tomasz Figa a8f5401af9 watchdog: s3c2410_wdt: Use local register definitions
This patch moves register and bitfield definitions to the driver itself,
removing remaining dependencies on plat/ and mach/ headers.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Tested-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-06-19 03:13:04 +09:00
David Daney 9ddebc46e7 MIPS: OCTEON: Rename Kconfig CAVIUM_OCTEON_REFERENCE_BOARD to CAVIUM_OCTEON_SOC
CAVIUM_OCTEON_SOC most place we used to use CPU_CAVIUM_OCTEON.  This
allows us to CPU_CAVIUM_OCTEON in places where we have no OCTEON SOC.

Remove CAVIUM_OCTEON_SIMULATOR as it doesn't really do anything, we can
get the same configuration with CAVIUM_OCTEON_SOC.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-ide@vger.kernel.org
Cc: linux-edac@vger.kernel.org
Cc: linux-i2c@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: spi-devel-general@lists.sourceforge.net
Cc: devel@driverdev.osuosl.org
Cc: linux-usb@vger.kernel.org
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Patchwork: https://patchwork.linux-mips.org/patch/5295/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-10 18:01:25 +02:00
Linus Walleij c83c199199 watchdog: coh901327: devicetree support
This adds support for probing the COH 901 327 watchdog from
the device tree and also adds associated bindings.

Acked-by: Wim Van Sebroeck <wim@iguana.be>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-31 11:25:52 +02:00
Wolfram Sang 937192a7cf drivers/watchdog: don't check resource with devm_ioremap_resource
devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-05-18 11:58:04 +02:00
Guenter Roeck 60403f7a4d watchdog: Fix race condition in registration code
A race condition exists when registering the first watchdog device.
Sequence of events:

- watchdog_register_device calls watchdog_dev_register
- watchdog_dev_register creates the watchdog misc device by calling
  misc_register.
  At that time, the matching character device (/dev/watchdog0) does not yet
  exist, and old_wdd is not set either.
- Userspace gets an event and opens /dev/watchdog
- watchdog_open is called and sets wdd = old_wdd, which is still NULL,
  and tries to dereference it. This causes the kernel to panic.

Seen with systemd trying to open /dev/watchdog immediately after
it was created.

Reported-by: Arkadiusz Miskiewicz <arekm@maven.pl>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Arkadiusz Miskiewicz <arekm@maven.pl>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-05-09 08:13:41 +02:00
Sachin Kamat 6330c7070b watchdog: Convert to devm_ioremap_resource()
Use the newly introduced devm_ioremap_resource() instead of
devm_request_and_ioremap() which provides more consistent error handling.

devm_ioremap_resource() provides its own error messages; so all explicit
error messages can be removed from the failure code paths.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Gabor Juhos <juhosg@openwrt.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-05-09 08:12:00 +02:00
Nicolas Ferre 09549cd017 watchdog: Revert the AT91RM9200_WATCHDOG dependency
Compiling the at91rm9200_wdt.c driver without at91rm9200
support was leading to several errors:

drivers/built-in.o: In function `at91_wdt_close':
at91_adc.c:(.text+0xc9fe4): undefined reference to `at91_st_base'
drivers/built-in.o: In function `at91_wdt_write':
at91_adc.c:(.text+0xca004): undefined reference to `at91_st_base'
drivers/built-in.o: In function `at91wdt_shutdown':
at91_adc.c:(.text+0xca01c): undefined reference to `at91_st_base'
drivers/built-in.o: In function `at91wdt_suspend':
at91_adc.c:(.text+0xca038): undefined reference to `at91_st_base'
drivers/built-in.o: In function `at91_wdt_open':
at91_adc.c:(.text+0xca0cc): undefined reference to `at91_st_base'
drivers/built-in.o:at91_adc.c:(.text+0xca2c8): more undefined references to
`at91_st_base' follow

So, reverting the modification of the "depends" Kconfig line
introduced by patch a6a1bcd37 (watchdog: at91rm9200: add DT support)
seems to be the good solution.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-04-14 09:09:10 +02:00
Takahisa Tanaka 81fc933f17 watchdog: sp5100_tco: Set the AcpiMmioSel bitmask value to 1 instead of 2
The AcpiMmioSel bit is bit 1 in the AcpiMmioEn register, but the current
sp5100_tco driver is using bit 2.

See 2.3.3 Power Management (PM) Registers page 150 of the
AMD SB800-Series Southbridges Register Reference Guide [1].

        AcpiMmioEn - RW – 8/16/32 bits - [PM_Reg: 24h]
        Field Name        Bits  Default  Description
        AcpiMMioDecodeEn  0     0b       Set to 1 to enable AcpiMMio space.
        AcpiMMIoSel       1     0b       Set AcpiMMio registers to be memory-mapped or IO-mapped space.
                                         0: Memory-mapped space
                                         1: I/O-mapped space

The sp5100_tco driver expects zero as a value of AcpiMmioSel (bit 1).

Fortunately, no problems were caused by this typo, because the default
value of the undocumented misused bit 2 seems to be zero.

However, the sp5100_tco driver should use the correct bitmask value.

[1] http://support.amd.com/us/Embedded_TechDocs/45482.pdf

Signed-off-by: Takahisa Tanaka <mc74hc00@gmail.com>
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@vger.kernel.org>
2013-03-22 23:21:55 +01:00
Takahisa Tanaka 18e4321276 watchdog: sp5100_tco: Remove code that may cause a boot failure
A problem was found on PC's with the SB700 chipset: The PC fails to
load BIOS after running the 3.8.x kernel until the power is completely
cut off. It occurs in all 3.8.x versions and the mainline version as of
2/4. The issue does not occur with the 3.7.x builds.

There are two methods for accessing the watchdog registers.

 1. Re-programming a resource address obtained by allocate_resource()
to chipset.
 2. Use the direct memory-mapped IO access.

The method 1 can be used by all the chipsets (SP5100, SB7x0, SB8x0 or
later). However, experience shows that only PC with the SB8x0 (or
later) chipsets can use the method 2.

This patch removes the method 1, because the critical problem was found.
That's why the watchdog timer was able to be used on SP5100 and SB7x0
chipsets until now.

Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1116835
Link: https://lkml.org/lkml/2013/2/14/271

Signed-off-by: Takahisa Tanaka <mc74hc00@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@vger.kernel.org>
2013-03-22 23:21:47 +01:00
Alessandro Rubini 41e9f3f71b watchdog: sp805_wdt depends on ARM
The SP805 driver is only used by the Spear machines, and uses
writel_relaxed, which is not available on all architectures.

The dependency from CONFIG_ARM avoids compilation problems under
randomconfig when CONFIG_ARM_AMBA is enabled for x86 builds.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com>
Signed-off-by: Davide Ciminaghi <ciminaghi@gnudd.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:56:26 +01:00
Kumar, Anil e20880e60f watchdog: davinci_wdt: update to devm_* API
Update the code to use devm_* API so that driver
core will manage resources.

Signed-off-by: Kumar, Anil <anilkumar.v@ti.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:56:18 +01:00
Mrugesh Katepallewar 362ce5aeeb watchdog: davinci_wdt: use devm managed clk get
Get the clock using devm_clk_get().

Signed-off-by: Mrugesh Katepallewar <mrugesh.mk@ti.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:56:14 +01:00
Joachim Eastwood a6a1bcd370 watchdog: at91rm9200: add DT support
Add DT support for at91rm9200_wdt.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:55:27 +01:00
Fabio Porcedda c1fd5f6402 watchdog: add timeout-sec property binding
this patchset add the timeout-sec property to the following drivers:
orion_wdt, pnx4008_wdt, s3c2410_wdt and at91sam9_wdt.

The at91sam9_wdt is tested on evk-pr3,
the other drivers are compile tested only.

Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Wolfram Sang <w.sang@pengutronix.de>
Cc: Masanari Iida <standby24x7@gmail.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Andrew Victor <linux@maxim.org.za>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:53:45 +01:00
Wenyou Yang 490ac7af8b watchdog: at91sam9_wdt: Convert to use the watchdog framework
According to Documentation/watchdog/convert_drivers_to_kernel_api.txt,
remove the file_operations struct, miscdevice, and obsolete includes

Since the at91sam watchdog inherent characteristics, add the watchdog
operations: at91wdt_start, at91wdt_stop and at91wdt_ping.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: linux-watchdog@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
2013-03-01 12:49:53 +01:00
Pali Rohár 2dd7b24467 watchdog: omap_wdt: Add option nowayout
Like other watchdog drivers, this patch adds new option nowayout
which overwrite WATCHDOG_NOWAYOUT.

Signed-off-by: Pali Rohar <pali.rohar@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:49:02 +01:00
Fabio Porcedda 3048253ed9 watchdog: core: dt: add support for the timeout-sec dt property
Add support for watchdog drivers to initialize/set the timeout field
of the watchdog_device structure. The timeout field is initialised
either with the module timeout parameter value (if valid) or with the
timeout-sec dt property (if valid). If both are invalid the initial
value is unchanged.

Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:48:36 +01:00
Hauke Mehrtens e3e83d0001 watchdog: bcm47xx_wdt.c: add hard timer
The more recent devices have a watchdog timer which could be configured
for over 2 hours and not just 2 seconds like the first generation
devices. For those devices do not use the extra software timer, but
directly program the time into the register. This will automatically be
used if the timer supports more than a minute.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:47:31 +01:00
Hauke Mehrtens 93aed1f02a watchdog: bcm47xx_wdt.c: rename wdt_time to timeout
Rename wdt_time to timeout to name it like the other watchdog
driver do it.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:47:28 +01:00
Hauke Mehrtens a39068929a watchdog: bcm47xx_wdt.c: rename ops methods
Rename the methods registered to struct watchdog_ops bcm47xx_wdt_ops in
order to add an other struct watchdog_ops using different ops in the
next patch.
Also rename WDT_MAX_TIME to WDT_SOFTTIMER_MAX.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:47:19 +01:00
Hauke Mehrtens f82dedf812 watchdog: bcm47xx_wdt.c: use platform device
Instead of accessing the function to set the watchdog timer directly,
register a platform driver the platform could register to use this
watchdog driver.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:47:16 +01:00
Hauke Mehrtens 5434a04db9 watchdog: bcm47xx_wdt.c: convert to watchdog core api
Convert the bcm47xx_wdt.c driver to the new watchdog core api.

The nowayout parameter is now added unconditionally to the module.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:47:13 +01:00
Guenter Roeck 52e5cc4efa watchdog: Convert BookE watchdog driver to watchdog infrastructure
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:46:28 +01:00
Jingoo Han 04ecc7dc8e watchdog: s3c2410_wdt: Use devm_* functions
Use devm_* functions to make cleanup paths more simple.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:45:34 +01:00
Wolfram Sang e4504daba1 watchdog: remove old STMP3xxx driver
Now that the new driver is in place, we can remove the old one.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:44:40 +01:00
Wolfram Sang de6303ab93 watchdog: add new driver for STMP3xxx and i.MX23/28
Replace the existing STMP3xxx driver because it has enough drawbacks
that a rewrite is apropriate. The new driver is designed to use the
watchdog framework which makes it a lot smaller and avoids open coding
the watchdog API again. It also uses now an explicitly exported function
from the RTC driver to set up its registers (the old driver silently
reused the hopefully(!) already remapped RTC registers). Also, this
driver is mach independent, while the old one depends on a mach replaced
by another one a year ago. Since the user interface is still the
standard watchdog API, users don't need to adapt.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:44:34 +01:00
Aaro Koskinen 3d3a6d18ab watchdog: introduce retu_wdt driver
Introduce Retu watchdog driver.

Cc: linux-watchdog@vger.kernel.org
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:31:14 +01:00
Wim Van Sebroeck d1ec74ab5a watchdog: intel_scu_watchdog: fix Kconfig dependency
Kernel symbol X86_MRST has been removed from the kernel.
INTEL_SCU_WATCHDOG driver can never be compiled due dependence of X86_MRST
which remained in the drivers/watchdog/Kconfig.

Reported-by: Alexander Shiyan <shc_work@mail.ru>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:25:06 +01:00
Lubomir Rintel f3ea733e2e watchdog: orion_wdt: Add platform alias
...so that it's automatically picked up on relevant platforms.
Tested on Kirkwood-based GuruPlug.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:24:58 +01:00
Gabor Juhos 15920d1299 watchdog: ath79_wdt: add device tree matching
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: devicetree-discuss@lists.ozlabs.org
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:22:43 +01:00
Gabor Juhos 09f5100a59 watchdog: ath79_wdt: get register base from platform device's resources
The ath79_wdt driver uses a fixed memory address
currently. Although this is working with each
currently supported SoCs, but this may change
in the future. Additionally, the driver includes
platform specific header files in order to be
able to get the memory base of the watchdog
device.

The patch adds a memory resource to the platform
device, and converts the driver to get the base
address of the watchdog device from that.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:22:38 +01:00
Gabor Juhos 5071a88475 watchdog: ath79_wdt: convert to use devm_clk_get
Use the managed version of clk_get. This allows to
simplify the probe/remove functions a bit.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:21:24 +01:00
Takahisa Tanaka 41adafbd7b watchdog: sp5100_tco: Write back the original value to reserved bits, instead of zero
In case of SP5100 or SB7x0 chipsets, the sp5100_tco module writes zero to
reserved bits. The module, however, shouldn't depend on specific default
value, and should perform a read-merge-write operation for the reserved
bits.

This patch makes the sp5100_tco module perform a read-merge-write operation
on all the chipset (sp5100, sb7x0, sb8x0 or later).

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43176
Signed-off-by: Takahisa Tanaka <mc74hc00@gmail.com>
Tested-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@vger.kernel.org>
2013-03-01 12:19:35 +01:00
Takahisa Tanaka 10ab329b5d watchdog: sp5100_tco: Fix wrong indirect I/O access for getting value of reserved bits
In case of SB800 or later chipset and re-programming MMIO address(*),
sp5100_tco module may read incorrect value of reserved bit, because the module
reads a value from an incorrect I/O address. However, this bug doesn't cause
a problem, because when re-programming MMIO address, by chance the module
writes zero (this is BIOS's default value) to the low three bits of register.
* In most cases, PC with SB8x0 or later chipset doesn't need to re-programming
  MMIO address, because such PC can enable AcpiMmio and can use 0xfed80b00 for
  watchdog register base address.

This patch fixes this bug.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43176
Signed-off-by: Takahisa Tanaka <mc74hc00@gmail.com>
Tested-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@vger.kernel.org>
2013-03-01 12:19:26 +01:00
Devendra Naga 6737176569 watchdog: gef_wdt.c: add missing remove callback
this module missed a remove callback in the platform ops.

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01 12:18:33 +01:00
Arnd Bergmann 6c41e47486 watchdog: at91sam9: at91_wdt_dt_ids cannot be __init
The device IDs are referenced by the driver and potentially
used beyond the init time, as kbuild correctly warns
about. Remove the __initconst annotation.

Without this patch, building at91_dt_defconfig results in:

WARNING: drivers/watchdog/built-in.o(.data+0x28): Section mismatch in reference from the variable at91wdt_driver to the (unknown reference) .init.rodata:(unknown)
The variable at91wdt_driver references
the (unknown reference) __initconst (unknown)

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Tested-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: linux-watchdog@vger.kernel.org
2013-03-01 12:16:47 +01:00
Randy Dunlap 12a5c05cb1 watchdog: da9055_wdt needs to select WATCHDOG_CORE
DA9055_WATCHDOG (introduced in v3.8) needs to select WATCHDOG_CORE so that it will
build cleanly.  Fixes these build errors:

da9055_wdt.c:(.text+0xe9bc7): undefined reference to `watchdog_unregister_device'
da9055_wdt.c:(.text+0xe9f4b): undefined reference to `watchdog_register_device'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: David Dajun Chen <dchen@diasemi.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: linux-watchdog@vger.kernel.org
Cc: stable <stable@vger.kernel.org>
2013-03-01 12:15:32 +01:00
Linus Torvalds d895cb1af1 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs pile (part one) from Al Viro:
 "Assorted stuff - cleaning namei.c up a bit, fixing ->d_name/->d_parent
  locking violations, etc.

  The most visible changes here are death of FS_REVAL_DOT (replaced with
  "has ->d_weak_revalidate()") and a new helper getting from struct file
  to inode.  Some bits of preparation to xattr method interface changes.

  Misc patches by various people sent this cycle *and* ocfs2 fixes from
  several cycles ago that should've been upstream right then.

  PS: the next vfs pile will be xattr stuff."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (46 commits)
  saner proc_get_inode() calling conventions
  proc: avoid extra pde_put() in proc_fill_super()
  fs: change return values from -EACCES to -EPERM
  fs/exec.c: make bprm_mm_init() static
  ocfs2/dlm: use GFP_ATOMIC inside a spin_lock
  ocfs2: fix possible use-after-free with AIO
  ocfs2: Fix oops in ocfs2_fast_symlink_readpage() code path
  get_empty_filp()/alloc_file() leave both ->f_pos and ->f_version zero
  target: writev() on single-element vector is pointless
  export kernel_write(), convert open-coded instances
  fs: encode_fh: return FILEID_INVALID if invalid fid_type
  kill f_vfsmnt
  vfs: kill FS_REVAL_DOT by adding a d_weak_revalidate dentry op
  nfsd: handle vfs_getattr errors in acl protocol
  switch vfs_getattr() to struct path
  default SET_PERSONALITY() in linux/elf.h
  ceph: prepopulate inodes only when request is aborted
  d_hash_and_lookup(): export, switch open-coded instances
  9p: switch v9fs_set_create_acl() to inode+fid, do it before d_instantiate()
  9p: split dropping the acls from v9fs_set_create_acl()
  ...
2013-02-26 20:16:07 -08:00
Linus Torvalds ab7826595e This is the MFD pull request for the 3.9 merge window.
No new drivers this time, but a bunch of fairly big cleanups:
 
 - Roger Quadros worked on a OMAP USBHS and TLL platform data consolidation,
   OMAP5 support and clock management code cleanup.
 
 - The first step of a major sync for the ab8500 driver from Lee Jones. In
   particular, the debugfs and the sysct interfaces got extended and improved.
 
 - Peter Ujfalusi sent a nice patchset for cleaning and fixing the twl-core
   driver, with a much needed module id lookup code improvement.
 
 - The regular wm5102 and arizona cleanups and fixes from Mark Brown.
 
 - Laxman Dewangan extended the palmas APIs in order to implement the palmas
   GPIO and rt drivers.
 
 - Laxman also added DT support for the tps65090 driver.
 
 - The Intel SCH and ICH drivers got a couple fixes from Aaron Sierra and
   Darren Hart.
 
 - Linus Walleij patchset for the ab8500 driver allowed ab8500 and ab9540 based
   devices to switch to the new abx500 pin-ctrl driver.
 
 - The max8925 now has device tree and irqdomain support thanks to Qing Xu.
 
 - The recently added rtsx driver got a few cleanups and fixes for a better
   card detection code path and now also supports the RTS5227 chipset, thanks
   to Wei Wang and Roger Tseng.
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Merge tag 'mfd-3.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6

Pull MFS updates from Samuel Ortiz:
 "This is the MFD pull request for the 3.9 merge window.

  No new drivers this time, but a bunch of fairly big cleanups:

   - Roger Quadros worked on a OMAP USBHS and TLL platform data
     consolidation, OMAP5 support and clock management code cleanup.

   - The first step of a major sync for the ab8500 driver from Lee
     Jones.  In particular, the debugfs and the sysct interfaces got
     extended and improved.

   - Peter Ujfalusi sent a nice patchset for cleaning and fixing the
     twl-core driver, with a much needed module id lookup code
     improvement.

   - The regular wm5102 and arizona cleanups and fixes from Mark Brown.

   - Laxman Dewangan extended the palmas APIs in order to implement the
     palmas GPIO and rt drivers.

   - Laxman also added DT support for the tps65090 driver.

   - The Intel SCH and ICH drivers got a couple fixes from Aaron Sierra
     and Darren Hart.

   - Linus Walleij patchset for the ab8500 driver allowed ab8500 and
     ab9540 based devices to switch to the new abx500 pin-ctrl driver.

   - The max8925 now has device tree and irqdomain support thanks to
     Qing Xu.

   - The recently added rtsx driver got a few cleanups and fixes for a
     better card detection code path and now also supports the RTS5227
     chipset, thanks to Wei Wang and Roger Tseng."

* tag 'mfd-3.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (109 commits)
  mfd: lpc_ich: Use devres API to allocate private data
  mfd: lpc_ich: Add Device IDs for Intel Wellsburg PCH
  mfd: lpc_sch: Accomodate partial population of the MFD devices
  mfd: da9052-i2c: Staticize da9052_i2c_fix()
  mfd: syscon: Fix sparse warning
  mfd: twl-core: Fix kernel panic on boot
  mfd: rtsx: Fix issue that booting OS with SD card inserted
  mfd: ab8500: Fix compile error
  mfd: Add missing GENERIC_HARDIRQS dependecies
  Documentation: Add docs for max8925 dt
  mfd: max8925: Add dts
  mfd: max8925: Support dt for backlight
  mfd: max8925: Fix onkey driver irq base
  mfd: max8925: Fix mfd device register failure
  mfd: max8925: Add irqdomain for dt
  mfd: vexpress: Allow vexpress-sysreg to self-initialise
  mfd: rtsx: Support RTS5227
  mfd: rtsx: Implement driving adjustment to device-dependent callbacks
  mfd: vexpress: Add pseudo-GPIO based LEDs
  mfd: ab8500: Rename ab8500 to abx500 for hwmon driver
  ...
2013-02-24 20:00:58 -08:00
Al Viro 496ad9aa8e new helper: file_inode(file)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-22 23:31:31 -05:00
Fabio Baltieri f0e5bd412f watchdog: Add support for ux500_wdt watchdog
This patch adds support for the ux500_wdt watchdog that is found in
ST-Ericsson Ux500 platform.  The driver is based on PRCMU APIs.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14 00:22:53 +01:00
Thierry Reding 4c271bb67c watchdog: Convert to devm_ioremap_resource()
Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.

devm_ioremap_resource() provides its own error messages so all explicit
error messages can be removed from the failure code paths.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-25 12:21:48 -08:00
Fabio Porcedda 1cb9204cc6 watchdog: convert drivers/watchdog/* to use module_platform_driver_probe
This makes the code a bit smaller by getting rid of
some boilerplate code.

Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-17 17:39:33 -08:00
Aaro Koskinen 8899b8d93e watchdog: twl4030_wdt: add DT support
Add DT support for twl4030_wdt. This is needed to get twl4030_wdt to
probe when booting with DT.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-01-02 12:07:05 +01:00
Aaro Koskinen 412b3729dd watchdog: omap_wdt: eliminate unused variable and a compiler warning
We forgot to delete this in the commit 4f4753d9 (watchdog: omap_wdt:
convert to devm_ functions), and as a result the following compilation
warning was introduced:

drivers/watchdog/omap_wdt.c: In function 'omap_wdt_remove':
drivers/watchdog/omap_wdt.c:299:19: warning: unused variable 'res' [-Wunused-variable]

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-01-02 12:06:58 +01:00
Axel Lin 98e4a29389 watchdog: da9055: Don't update wdt_dev->timeout in da9055_wdt_set_timeout error path
Otherwise, WDIOC_GETTIMEOUT returns wrong value if set_timeout fails.
This patch also removes unnecessary ret variable in da9055_wdt_ping function.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-01-02 12:06:49 +01:00
Axel Lin ee8c94adff watchdog: da9055: Fix invalid free of devm_ allocated data
It is not required to free devm_ allocated data. Since kref_put
needs a valid release function, da9055_wdt_release_resources()
is not deleted.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-01-02 12:06:43 +01:00
Jason Gunthorpe 8c4c419ca3 watchdog: Orion: Fix possible null-deference in orion_wdt_probe
If the DT does not include a regs parameter then the null res
would be dereferenced.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:25:10 +01:00
Takahisa Tanaka 740fbddf5c watchdog: sp5100_tco: Add SB8x0 chipset support
The current sp5100_tco driver only supports SP5100/SB7x0 chipset, doesn't
support SB8x0 chipset, because current sp5100_tco driver doesn't know that the
offset address for watchdog timer was changed from SB8x0 chipset.

The offset address of SP5100 and SB7x0 chipsets are as follows, quote from the
AMD SB700/710/750 Register Reference Guide (Page 164) and the AMD SP5100
Register Reference Guide (Page 166).

  WatchDogTimerControl 69h
  WatchDogTimerBase0   6Ch
  WatchDogTimerBase1   6Dh
  WatchDogTimerBase2   6Eh
  WatchDogTimerBase3   6Fh

In contrast, the offset address of SB8x0 chipset is as follows, quote from
AMD SB800-Series Southbridges Register Reference Guide (Page 147).

  WatchDogTimerEn      48h
  WatchDogTimerConfig  4Ch

So, In the case of SB8x0 chipset, sp5100_tco reads meaningless MMIO
address (for example, 0xbafe00) from wrong offset address, and the following
message is logged.

   SP5100 TCO timer: mmio address 0xbafe00 already in use

With this patch, sp5100_tco driver supports SB8x0 chipset, and can avoid
iomem resource conflict. The processing of this patch is as follows.

 Step 1) Attempt to get the watchdog base address from indirect I/O (0xCD6
         and 0xCD7).
  - Go to the step 7 if obtained address hasn't conflicted with other
    resource. But, currently, the address (0xfec000f0) conflicts with the
    IOAPIC MMIO address, and the following message is logged.

       SP5100 TCO timer: mmio address 0xfec000f0 already in use

    0xfec000f0 is recommended by AMD BIOS Developer's Guide. So, go to the
    next step.

 Step 2) Attempt to get the SBResource_MMIO base address from AcpiMmioEN (for
         SB8x0,  PM_Reg:24h) or SBResource_MMIO (SP5100/SB7x0, PCI_Reg:9Ch)
         register.
  - Go to the step 7 if these register has enabled by BIOS, and obtained
    address hasn't conflicted with other resource.
  - If above condition isn't true, go to the next step.

 Step 3) Attempt to get the free MMIO address from allocate_resource().
  - Go to the step 7 if these register has enabled by BIOS, and obtained
    address hasn't conflicted with other resource.
  - Driver initialization has failed if obtained address has conflicted
    with other resource, and no 'force_addr' parameter is specified.

 Step 4) Use the specified address If 'force_addr' parameter is specified.
  - allocate_resource() function may fail, when the PCI bridge device occupies
    iomem resource from 0xf0000000 to 0xffffffff. To handle such a case,
    I added 'force_addr' parameter to sp5100_tco driver. With 'force_addr'
    parameter, sp5100_tco driver directly can assign MMIO address for watchdog
    timer from free iomem region. Note that It's dangerous to specify wrong
    address in the 'force_addr' parameter.

      Example of force_addr parameter use
        # cat /proc/iomem
        ...snip...
        fec00000-fec003ff : IOAPIC 0
                                      <--- free MMIO region
        fec10000-fec1001f : pnp 00:0b
        fec20000-fec203ff : IOAPIC 1
        ...snip...
        # cat /etc/modprobe.d/sp5100_tco.conf
        options sp5100_tco force_addr=0xfec00800
        # modprobe sp5100_tco
        # cat /proc/iomem
        ...snip...
        fec00000-fec003ff : IOAPIC 0
        fec00800-fec00807 : SP5100 TCO  <--- watchdog timer MMIO address
        fec10000-fec1001f : pnp 00:0b
        fec20000-fec203ff : IOAPIC 1
        ...snip...
        #

  - Driver initialization has failed if specified address has conflicted
    with other resource.

 Step 5) Disable the watchdog timer
  - To rewrite the watchdog timer register of the chipset, absolutely
    guarantee that the watchdog timer is disabled.

 Step 6) Re-program the watchdog timer MMIO address to chipset.
  - Re-program the obtained MMIO address in Step 3 or Step 4 to chipset via
    indirect I/O (0xCD6 and 0xCD7).

 Step 7) Enable and setup the watchdog timer

This patch has worked fine on my test environment (ASUS M4A89GTD-PRO/USB3 and
DL165G7). therefore I believe that it's no problem to re-program the MMIO
address for watchdog timer to chipset during disabled watchdog. However,
I'm not sure about it, because I don't know much about chipset programming.

So, any comments will be welcome.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43176
Tested-by: Arkadiusz Miskiewicz <arekm@maven.pl>
Tested-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Takahisa Tanaka <mc74hc00@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:25:09 +01:00
Murali Karicheri 902e2e7d48 watchdog: davinci_wdt: add OF support
This adds OF support for davinci_wdt driver.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:25:08 +01:00
Tushar Behera 0360dffedd watchdog: da9052: Fix invalid free of devm_ allocated data
It is not required to free devm_ allocated data. Since kref_put
needs a valid release function, da9052_wdt_release_resources()
is not deleted.

Fixes following warning.
drivers/watchdog/da9052_wdt.c:59:1-6: WARNING: invalid free of
devm_ allocated data

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:25:07 +01:00
Peter Ujfalusi 2bc3f62f96 watchdog: twl4030_wdt: Change TWL4030_MODULE_PM_RECEIVER to TWL_MODULE_PM_RECEIVER
To facilitate upcoming cleanup in twl stack.
No functional changes.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:25:07 +01:00
Kees Cook e1926349c2 watchdog: remove depends on CONFIG_EXPERIMENTAL
The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:25:06 +01:00
Joe Perches 77e0dfcc09 watchdog: Convert dev_printk(KERN_<LEVEL> to dev_<level>(
dev_<level> calls take less code than dev_printk(KERN_<LEVEL>
and reducing object size is good.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:25:06 +01:00
Ashish Jangam 312b00e1c3 watchdog: DA9055 Watchdog driver
This is the Watchdog patch for the DA9055 PMIC. This patch has got dependency on
the DA9055 MFD core.

This patch is functionally tested on SMDK6410

Signed-off-by: David Dajun Chen <dchen@diasemi.com>
Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:58 +01:00
Aaro Koskinen 1ba85387f0 watchdog: omap_wdt: eliminate goto
Eliminate a goto to simplify the code.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:57 +01:00
Aaro Koskinen ef48174729 watchdog: omap_wdt: delete redundant platform_set_drvdata() calls
It's not needed to manually reset the driver data.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:57 +01:00
Aaro Koskinen 4f4753d96d watchdog: omap_wdt: convert to devm_ functions
Use devm_kzalloc(), devm_request_mem_region() ande devm_ioremap()
to simplify the code.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:56 +01:00
Aaro Koskinen 67c0f55468 watchdog: omap_wdt: convert to new watchdog core
Convert omap_wdt to new watchdog core. On OMAP boards, there are usually
multiple watchdogs. Since the new watchdog core supports multiple
watchdogs, all watchdog drivers used on OMAP should be converted.

The legacy watchdog device node is still created, so this should not
break existing users.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Tested-by: Jarkko Nikula <jarkko.nikula@jollamobile.com>
Tested-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:55 +01:00
Thomas Abraham 50d854c8a7 watchdog: s3c2410_wdt: use clk_prepare_enable and clk_disable_unprepare
Convert clk_enable/clk_disable to clk_prepare_enable/clk_disable_unprepare
calls as required by common clock framework.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:43 +01:00
Fabio Estevam 2d076bb839 watchdog: imx2_wdt: Select the driver via ARCH_MXC
With device tree support in place, we should not use IMX_HAVE_PLATFORM_IMX2_WDT
as a dependency for selecting the imx2_wdt driver.

Use ARCH_MXC symbol instead, so that the driver can be even selected by a device-tree
only SoC, such as i.MX6.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:42 +01:00
devendra.aaru e09d9c3e9f watchdog: cpu5wdt.c: add missing del_timer call
We do a setup_timer at init stage of the module, but we didn't
de-activate the time using del_timer.

Signed-off-by: devendra.aaru <devendra.aaru@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:41 +01:00
Tom Mingarelli e16cfb9d38 watchdog: hpwdt.c: Increase version string
Changing the version of the driver for all the latest patches being applied
for kdump fixes.

Signed-off-by: Thomas Mingarelli <thomas.mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:40 +01:00
Jarkko Nikula b2c4e4b269 watchdog: Convert twl4030_wdt to watchdog core
Convert the twl4030_wdt watchdog driver to watchdog core.

While at there use devm_kzalloc and set the default timeout in order to be
able test this driver with a simple shell script.

Signed-off-by: Jarkko Nikula <jarkko.nikula@jollamobile.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:40 +01:00
Karicheri, Muralidharan 5235f57a6f davinci_wdt: preparation for switch to common clock framework
As a first step towards migrating davinci platforms to use common clock
framework, replace all instances of clk_enable() with clk_prepare_enable()
and clk_disable() with clk_disable_unprepare(). Until the platform is
switched to use the CONFIG_HAVE_CLK_PREPARE Kconfig variable, this just
adds a might_sleep() call and would work without any issues.

This will make it easy later to switch to common clk based implementation
of clk driver from DaVinci specific driver.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:39 +01:00
Julia Lawall 63fbbc1696 watchdog: sp805_wdt.c: use clk_prepare_enable and clk_disable_unprepare
Clk_prepare_enable and clk_disable_unprepare combine clk_prepare and
clk_enable, and clk_disable and clk_unprepare.  They make the code more
concise, and ensure that clk_unprepare is called when clk_enable fails.

A simplified version of the semantic patch that introduces calls to these
functions is as follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e;
@@

- clk_prepare(e);
- clk_enable(e);
+ clk_prepare_enable(e);

@@
expression e;
@@

- clk_disable(e);
- clk_unprepare(e);
+ clk_disable_unprepare(e);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:38 +01:00
Gabor Juhos 8157becf8d watchdog: ath79_wdt: convert to use module_platform_driver
This makes the code a bit smaller by getting rid of
some boilerplate code.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:38 +01:00
Linus Torvalds a2013a13e6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial branch from Jiri Kosina:
 "Usual stuff -- comment/printk typo fixes, documentation updates, dead
  code elimination."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
  HOWTO: fix double words typo
  x86 mtrr: fix comment typo in mtrr_bp_init
  propagate name change to comments in kernel source
  doc: Update the name of profiling based on sysfs
  treewide: Fix typos in various drivers
  treewide: Fix typos in various Kconfig
  wireless: mwifiex: Fix typo in wireless/mwifiex driver
  messages: i2o: Fix typo in messages/i2o
  scripts/kernel-doc: check that non-void fcts describe their return value
  Kernel-doc: Convention: Use a "Return" section to describe return values
  radeon: Fix typo and copy/paste error in comments
  doc: Remove unnecessary declarations from Documentation/accounting/getdelays.c
  various: Fix spelling of "asynchronous" in comments.
  Fix misspellings of "whether" in comments.
  eisa: Fix spelling of "asynchronous".
  various: Fix spelling of "registered" in comments.
  doc: fix quite a few typos within Documentation
  target: iscsi: fix comment typos in target/iscsi drivers
  treewide: fix typo of "suport" in various comments and Kconfig
  treewide: fix typo of "suppport" in various comments
  ...
2012-12-13 12:00:02 -08:00
Linus Torvalds a11da7df65 ARM: arm-soc: power management and clock changes
This branch contains a largeish set of updates of power management and
 clock setup. The bulk of it is for OMAP/AM33xx platforms, but also a
 few around hotplug/suspend/resume on Exynos.
 
 It includes a split-up of some of the OMAP clock data into separate
 files which adds to the diffstat, but gross delta is fairly reasonable.
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Merge tag 'pm-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC power management and clock changes from Olof Johansson:
 "This branch contains a largeish set of updates of power management and
  clock setup.  The bulk of it is for OMAP/AM33xx platforms, but also a
  few around hotplug/suspend/resume on Exynos.

  It includes a split-up of some of the OMAP clock data into separate
  files which adds to the diffstat, but gross delta is fairly reasonable."

* tag 'pm-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (60 commits)
  ARM: OMAP: Move plat-omap/dma-omap.h to include/linux/omap-dma.h
  ASoC: OMAP: mcbsp fixes for enabling ARM multiplatform support
  watchdog: OMAP: fixup for ARM multiplatform support
  ARM: EXYNOS: Add flush_cache_all in suspend finisher
  ARM: EXYNOS: Remove scu_enable from cpuidle
  ARM: EXYNOS: Fix soft reboot hang after suspend/resume
  ARM: EXYNOS: Add support for rtc wakeup
  ARM: EXYNOS: fix the hotplug for Cortex-A15
  ARM: OMAP2+: omap_device: Correct resource handling for DT boot
  ARM: OMAP2+: hwmod: Add possibility to count hwmod resources based on type
  ARM: OMAP2+: hwmod: Add support for per hwmod/module context lost count
  ARM: OMAP2+: PRM: initialize some PRM functions early
  ARM: OMAP2+: voltage: fixup oscillator handling when CONFIG_PM=n
  ARM: OMAP4: USB: power down MUSB PHY during boot
  ARM: OMAP2+: clock: Cleanup !CONFIG_COMMON_CLK parts
  ARM: OMAP2xxx: clock: drop obsolete clock data
  ARM: OMAP2: clock: Cleanup !CONFIG_COMMON_CLK parts
  ARM: OMAP3+: DPLL: drop !CONFIG_COMMON_CLK sections
  ARM: AM33xx: clock: drop obsolete clock data
  ARM: OMAP3xxx: clk: drop obsolete clock data
  ...
2012-12-13 10:58:20 -08:00
Linus Torvalds db5b0ae007 ARM: arm-soc: device tree conversions and enablement
Continued device tree conversion and enablement across a number of
 platforms; Kirkwood, tegra, i.MX, Exynos, zynq and a couple of other
 smaller series as well.
 
 ux500 has seen continued conversion for platforms. Several platforms have
 seen pinctrl-via-devicetree conversions for simpler multiplatform. Tegra
 is adding data for new devices/drivers, and Exynos has a bunch of new
 bindings and devices added as well.
 
 So, pretty much the same progression in the right direction as the last
 few releases.
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Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC device tree conversions and enablement from Olof Johansson:
 "Continued device tree conversion and enablement across a number of
  platforms; Kirkwood, tegra, i.MX, Exynos, zynq and a couple of other
  smaller series as well.

  ux500 has seen continued conversion for platforms.  Several platforms
  have seen pinctrl-via-devicetree conversions for simpler
  multiplatform.  Tegra is adding data for new devices/drivers, and
  Exynos has a bunch of new bindings and devices added as well.

  So, pretty much the same progression in the right direction as the
  last few releases."

Fix up conflicts as per Olof.

* tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (185 commits)
  ARM: ux500: Rename dbx500 cpufreq code to be more generic
  ARM: dts: add missing ux500 device trees
  ARM: ux500: Stop registering the PCM driver from platform code
  ARM: ux500: Move board specific GPIO info out to subordinate DTS files
  ARM: ux500: Disable the MMCI gpio-regulator by default
  ARM: Kirkwood: remove kirkwood_ehci_init() from new boards
  ARM: Kirkwood: Add support LED of OpenBlocks A6
  ARM: Kirkwood: Convert to EHCI via DT for OpenBlocks A6
  ARM: kirkwood: Add NAND partiton map for OpenBlocks A6
  ARM: kirkwood: Add support second I2C bus and RTC on OpenBlocks A6
  ARM: kirkwood: Add support DT of second I2C bus
  ARM: kirkwood: Convert mplcec4 board to pinctrl
  ARM: Kirkwood: Convert km_kirkwood to pinctrl
  ARM: Kirkwood: support 98DX412x kirkwoods with pinctrl
  ARM: Kirkwood: Convert IX2-200 to pinctrl.
  ARM: Kirkwood: Convert lsxl boards to pinctrl.
  ARM: Kirkwood: Convert ib62x0 to pinctrl.
  ARM: Kirkwood: Convert GoFlex Net to pinctrl.
  ARM: Kirkwood: Convert dreamplug to pinctrl.
  ARM: Kirkwood: Convert dockstar to pinctrl.
  ...
2012-12-13 10:39:26 -08:00
Linus Torvalds d01e4afdbb ARM: arm-soc: Cleanups on various subarchitectures
Cleanup patches for various ARM platforms and some of their associated
 drivers. There's also a branch in here that enables Freescale i.MX to be
 part of the multiplatform support -- the first "big" SoC that is moved
 over (more multiplatform work comes in a separate branch later during
 the merge window).
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Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups on various subarchitectures from Olof Johansson:
 "Cleanup patches for various ARM platforms and some of their associated
  drivers.  There's also a branch in here that enables Freescale i.MX to
  be part of the multiplatform support -- the first "big" SoC that is
  moved over (more multiplatform work comes in a separate branch later
  during the merge window)."

Conflicts fixed as per Olof, including a silent semantic one in
arch/arm/mach-omap2/board-generic.c (omap_prcm_restart() was renamed to
omap3xxx_restart(), and a new user of the old name was added).

* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (189 commits)
  ARM: omap: fix typo on timer cleanup
  ARM: EXYNOS: Remove unused regs-mem.h file
  ARM: EXYNOS: Remove unused non-dt support for dwmci controller
  ARM: Kirkwood: Use hw_pci.ops instead of hw_pci.scan
  ARM: OMAP3: cm-t3517: use GPTIMER for system clock
  ARM: OMAP2+: timer: remove CONFIG_OMAP_32K_TIMER
  ARM: SAMSUNG: use devm_ functions for ADC driver
  ARM: EXYNOS: no duplicate mask/unmask in eint0_15
  ARM: S3C24XX: SPI clock channel setup is fixed for S3C2443
  ARM: EXYNOS: Remove i2c0 resource information and setting of device names
  ARM: Kirkwood: checkpatch cleanups
  ARM: Kirkwood: Fix sparse warnings.
  ARM: Kirkwood: Remove unused includes
  ARM: kirkwood: cleanup lsxl board includes
  ARM: integrator: use BUG_ON where possible
  ARM: integrator: push down SC dependencies
  ARM: integrator: delete static UART1 mapping
  ARM: integrator: delete SC mapping on the CP
  ARM: integrator: remove static CP syscon mapping
  ARM: integrator: remove static AP syscon mapping
  ...
2012-12-12 11:51:39 -08:00
Linus Torvalds b1286f4e9a Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM updates from Russell King:
 "Here's the updates for ARM for this merge window, which cover quite a
  variety of areas.

  There's a bunch of patch series from Will tackling various bugs like
  the PROT_NONE handling, ASID allocation, cluster boot protocol and
  ASID TLB tagging updates.

  We move to a build-time sorted exception table rather than doing the
  sorting at run-time, add support for the secure computing filter, and
  some updates to the perf code.  We also have sorted out the placement
  of some headers, fixed some build warnings, fixed some hotplug
  problems with the per-cpu TWD code."

* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (73 commits)
  ARM: 7594/1: Add .smp entry for REALVIEW_EB
  ARM: 7599/1: head: Remove boot-time HYP mode check for v5 and below
  ARM: 7598/1: net: bpf_jit_32: fix sp-relative load/stores offsets.
  ARM: 7595/1: syscall: rework ordering in syscall_trace_exit
  ARM: 7596/1: mmci: replace readsl/writesl with ioread32_rep/iowrite32_rep
  ARM: 7597/1: net: bpf_jit_32: fix kzalloc gfp/size mismatch.
  ARM: 7593/1: nommu: do not enable DCACHE_WORD_ACCESS when !CONFIG_MMU
  ARM: 7592/1: nommu: prevent generation of kernel unaligned memory accesses
  ARM: 7591/1: nommu: Enable the strict alignment (CR_A) bit only if ARCH < v6
  ARM: 7590/1: /proc/interrupts: limit the display of IPIs to online CPUs only
  ARM: 7587/1: implement optimized percpu variable access
  ARM: 7589/1: integrator: pass the lm resource to amba
  ARM: 7588/1: amba: create a resource parent registrator
  ARM: 7582/2: rename kvm_seq to vmalloc_seq so to avoid confusion with KVM
  ARM: 7585/1: kernel: fix nr_cpu_ids check in DT logical map init
  ARM: 7584/1: perf: fix link error when CONFIG_HW_PERF_EVENTS is not selected
  ARM: gic: use a private mapping for CPU target interfaces
  ARM: kernel: add logical mappings look-up
  ARM: kernel: add cpu logical map DT init in setup_arch
  ARM: kernel: add device tree init map function
  ...
2012-12-12 11:30:02 -08:00
Olof Johansson 48d224d1ef Remaining patches to allow omap2+ to build with multiplatform
enabled. Unfortunately the DMA header patch had to be redone
 to avoid adding new multiplatform specific include paths, the
 other patches are just trivial compile fixes.
 
 Note that this does not yet contain the necessary Kconfig
 changes as we are still waiting for some drivers to get
 fixed up first.
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Merge tag 'tags/omap-for-v3.8/cleanup-multiplatform-no-clock-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/pm2

From Tony Lindgren:
Remaining patches to allow omap2+ to build with multiplatform
enabled. Unfortunately the DMA header patch had to be redone
to avoid adding new multiplatform specific include paths, the
other patches are just trivial compile fixes.

Note that this does not yet contain the necessary Kconfig
changes as we are still waiting for some drivers to get
fixed up first.

* tag 'tags/omap-for-v3.8/cleanup-multiplatform-no-clock-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP: Move plat-omap/dma-omap.h to include/linux/omap-dma.h
  ASoC: OMAP: mcbsp fixes for enabling ARM multiplatform support
  watchdog: OMAP: fixup for ARM multiplatform support

Conflicts due to surrounding changes in:
	arch/arm/mach-omap2/omap_hwmod_2420_data.c
	arch/arm/mach-omap2/omap_hwmod_2430_data.c

Signed-off-by: Olof Johansson <olof@lixom.net>
2012-11-30 21:47:21 -08:00
Tony Lindgren 0a779abe87 watchdog: OMAP: fixup for ARM multiplatform support
Recent changes to the omap_wdt.c removed the dependencies to
the core omap code, but forgot to remove mach/hardware.h.

We cannot include any plat headers with multiplatform
support enabled.

cc: Wim Van Sebroeck <wim@iguana.be>
cc: linux-watchdog@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-11-30 08:41:35 -08:00
Bill Pemberton 4b12b896c2 watchdog: remove use of __devexit
CONFIG_HOTPLUG is going away as an option so __devexit is no
longer needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-28 12:00:24 -08:00
Bill Pemberton 1d13136864 watchdog: remove use of __devinitdata
CONFIG_HOTPLUG is going away as an option so __devinitdata is no
longer needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-28 12:00:24 -08:00
Bill Pemberton 2d991a164a watchdog: remove use of __devinit
CONFIG_HOTPLUG is going away as an option so __devinit is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-28 12:00:24 -08:00
Bill Pemberton 82268714bd watchdog: remove use of __devexit_p
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-28 12:00:24 -08:00
Olof Johansson 6fe05f33da More DT material for AT91:
- conversion of watchdog to DT
 - usart definition for evk-pro3 board
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Merge tag 'at91-for-next-dt' of git://github.com/at91linux/linux-at91 into next/dt

From Nicolas Ferre:
More DT material for AT91:

- conversion of watchdog to DT
- usart definition for evk-pro3 board

* tag 'at91-for-next-dt' of git://github.com/at91linux/linux-at91:
  ARM: at91/dts: evk-pro3: enable watchdog
  ARM: at91/dts: add at91sam9_wdt driver to at91sam926x, at91sam9g45
  watchdog: at91sam9_wdt: add device tree support
  ARM: at91: dt: evk-pro3: enable uart0 and uart2
2012-11-20 23:11:45 -08:00
Adam Buchbinder 48fc7f7e78 Fix misspellings of "whether" in comments.
"Whether" is misspelled in various comments across the tree; this
fixes them. No code changes.

Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-11-19 14:31:35 +01:00
Arnd Bergmann bac2f66886 ARM i.MX dt updates for 3.8
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Merge tag 'imx-dt' of git://git.pengutronix.de/git/imx/linux-2.6 into next/dt

From Sascha Hauer <s.hauer@pengutronix.de>:

ARM i.MX dt updates for 3.8

* tag 'imx-dt' of git://git.pengutronix.de/git/imx/linux-2.6:
  Add device tree file for the armadeus apf27
  ARM i.MX: Add Ka-Ro TX25 devicetree
  ARM i.MX25: Add devicetree
  ARM i.MX25: Add devicetree support
  ARM i.MX25: Add missing clock gates

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-11-16 17:11:46 +01:00
Fabio Porcedda be49bbae13 watchdog: at91sam9_wdt: add device tree support
Tested on an at91sam9260 board (evk-pro3)

Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2012-11-16 15:48:30 +01:00
Arnd Bergmann cb64babf9e More PRCM cleanups via Paul Walmsley <paul@pwsan.com>:
Second set of OMAP PRCM cleanups for 3.8.
 
 These patches remove the use of omap_prcm_get_reset_sources() from the
 OMAP watchdog driver, and remove mach-omap2/prcm.c and
 plat-omap/include/plat/prcm.h.
 
 Basic test logs for this branch on top of Tony's cleanup-prcm branch
 at commit 7fc54fd308 are here:
 
     http://www.pwsan.com/omap/testlogs/prcm_cleanup_b_3.8/20121108151646/
 
 However, cleanup-prcm at 7fc54fd3 does not include some fixes
 that are needed for a successful test.  With several reverts,
 fixes, and workarounds applied, the following test logs were
 obtained:
 
     http://www.pwsan.com/omap/testlogs/TEST_prcm_cleanup_b_3.8/20121108151930/
 
 which indicate that the series tests cleanly.
 
 This second pull request updates one of the patches which broke
 with rmk's allnoconfigs, and also updates the tag description to
 indicate that 7fc54fd3 is building cleanly here.
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Merge tag 'omap-for-v3.8/cleanup-prcm-part2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup

From Tony Lindgren <tony@atomide.com>:

More PRCM cleanups via Paul Walmsley <paul@pwsan.com>:

Second set of OMAP PRCM cleanups for 3.8.

These patches remove the use of omap_prcm_get_reset_sources() from the
OMAP watchdog driver, and remove mach-omap2/prcm.c and
plat-omap/include/plat/prcm.h.

Basic test logs for this branch on top of Tony's cleanup-prcm branch
at commit 7fc54fd308 are here:

    http://www.pwsan.com/omap/testlogs/prcm_cleanup_b_3.8/20121108151646/

However, cleanup-prcm at 7fc54fd3 does not include some fixes
that are needed for a successful test.  With several reverts,
fixes, and workarounds applied, the following test logs were
obtained:

    http://www.pwsan.com/omap/testlogs/TEST_prcm_cleanup_b_3.8/20121108151930/

which indicate that the series tests cleanly.

This second pull request updates one of the patches which broke
with rmk's allnoconfigs, and also updates the tag description to
indicate that 7fc54fd3 is building cleanly here.

* tag 'omap-for-v3.8/cleanup-prcm-part2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (27 commits)
  ARM: OMAP2: Fix compillation error in cm_common
  ARM: OMAP2+: PRCM: remove obsolete prcm.[ch]
  ARM: OMAP2+: hwmod: call to _omap4_disable_module() should use the SoC-specific call
  ARM: OMAP2+: PRCM: consolidate PRCM-related timeout macros
  ARM: OMAP2+: PRCM: split and relocate the PRM/CM globals setup
  ARM: OMAP2+: PRCM: remove omap2_cm_wait_idlest()
  ARM: OMAP2+: CM/clock: convert _omap2_module_wait_ready() to use SoC-independent CM functions
  ARM: OMAP2xxx: APLL/CM: convert to use omap2_cm_wait_module_ready()
  ARM: OMAP2+: board files: use SoC-specific system restart functions
  ARM: OMAP2+: PRCM: create SoC-specific chip restart functions
  ARM: OMAP2xxx: clock: move virt_prcm_set code into clkt2xxx_virt_prcm_set.c
  ARM: OMAP2xxx: clock: remove global 'dclk' variable
  ARM: OMAP2/3: PRM: add SoC reset functions (using the CORE DPLL method)
  ARM: OMAP2+: common: remove mach-omap2/common.c globals and map_common_io code
  ARM: OMAP2+: PRCM: remove omap_prcm_get_reset_sources()
  watchdog: OMAP: use standard GETBOOTSTATUS interface; use platform_data fn ptr
  ARM: OMAP2+: WDT: move init; add read_reset_sources pdata function pointer
  ARM: OMAP1: CGRM: fix omap1_get_reset_sources() return type
  ARM: OMAP2+: PRM: create PRM reset source API for the watchdog timer driver
  ARM: OMAP1: create read_reset_sources() function (for initial use by watchdog)
  ...

Conflicts:
	arch/arm/mach-omap2/cm33xx.c
	arch/arm/mach-omap2/io.c
	arch/arm/mach-omap2/prm_common.c

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-11-15 17:08:51 +01:00
Paul Walmsley 129f557723 watchdog: OMAP: use standard GETBOOTSTATUS interface; use platform_data fn ptr
Previously the OMAP watchdog driver used a non-standard way to report
the chip reset source via the GETBOOTSTATUS ioctl.  This patch
converts the driver to use the standard WDIOF_* flags for this
purpose.

This patch may break existing userspace code that uses the existing
non-standard data format returned by the OMAP watchdog driver's
GETBOOTSTATUS ioctl.  To fetch detailed reset source information,
userspace code will need to retrieve it directly from the CGRM or PRM
drivers when those are completed.

Previously, to fetch the reset source, the driver either read a
register outside the watchdog IP block (OMAP1), or called a function
exported directly from arch/arm/mach-omap2.  Both approaches are
broken.  This patch also converts the driver to use a platform_data
function pointer.  This approach is temporary, and is due to the lack
of drivers for the OMAP16xx+ Clock Generation and Reset Management IP
block and the OMAP2+ Power and Reset Management IP block.  Once
drivers are available for those IP blocks, the watchdog driver can be
converted to call exported functions from those drivers directly.
At that point, the platform_data function pointer can be removed.

In the short term, this patch is needed to allow the PRM code to be
removed from arch/arm/mach-omap2 (it is being moved to a driver).

This version integrates a fix from Jon Hunter <jon-hunter@ti.com>
that avoids a NULL pointer dereference in a DT-only boot, and integrates
a patch commit message fix from Felipe Balbi <balbi@ti.com>.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Wim Van Sebroeck <wim@iguana.be>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
[paul@pwsan.com: integrated pdata fix from Jon Hunter]
Cc: Jon Hunter <jon-hunter@ti.com>
[paul@pwsan.com: integrated changelog fix from Felipe Balbi]
Cc: Felipe Balbi <balbi@ti.com>
2012-11-08 12:33:07 -07:00
Russell King 60d6dd530a WATCHDOG: fix build PM warnings
drivers/watchdog/sp805_wdt.c:288:12: warning: 'sp805_wdt_suspend' defined but not used
drivers/watchdog/sp805_wdt.c:298:12: warning: 'sp805_wdt_resume' defined but not used

This is caused by the wrong config symbol being used for these functions.
Rather than fixing that, mark the functions with __maybe_unused

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-11-08 10:54:16 +00:00
Shawn Guo 881994638c watchdog: imx2_wdt: remove unneeded mach/hardware.h inclusion
The inclusion of mach/hardware.h is not used by the driver at all.
Remove it.

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: Wim Van Sebroeck <wim@iguana.be>
Cc: linux-watchdog@vger.kernel.org
2012-10-15 10:03:14 +08:00
Linus Torvalds 7cb9cf0224 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu arch updates from Greg Ungerer:
 "Most of it is a cleanup of the ColdFire hardware header files.  We
  have had a few occurrances of bugs caused by inconsistent definitions
  of peripheral addresses.  These patches make them all consistent, and
  also clean out a bunch of old crap.  Overall we remove about 1000
  lines."

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (27 commits)
  m68knommu: fix inconsistent formating in ColdFire 5407 definitions
  m68knommu: fix inconsistent formating in ColdFire 5307 definitions
  m68knommu: fix inconsistent formating in ColdFire 527x definitions
  m68knommu: fix inconsistent formating in ColdFire 5272 definitions
  m68knommu: fix inconsistent formating in ColdFire 523x definitions
  m68knommu: clean up ColdFire 54xx General Timer definitions
  m68knommu: clean up Pin Assignment definitions for the 54xx ColdFire CPU
  m68knommu: fix multi-function pin setup for FEC module on ColdFire 523x
  m68knommu: move ColdFire slice timer address defiens to 54xx header
  m68knommu: use read/write IO access functions in ColdFire m532x setup code
  m68knommu: modify ColdFire 532x GPIO register definitions to be consistent
  m68knommu: remove a lot of unsed definitions for 532x ColdFire
  m68knommu: use definitions for the ColdFire 528x FEC multi-function pins
  m68knommu: remove address offsets relative to IPSBAR for ColdFire 527x
  m68knommu: remove unused ColdFire 5282 register definitions
  m68knommu: fix wrong register offsets used for ColdFire 5272 multi-function pins
  m68knommu: make ColdFire 5249 MBAR2 register definitions absolute addresses
  m68knommu: make remaining ColdFire 5272 register definitions absolute addresses
  m68knommu: make ColdFire Park and Assignment register definitions absolute addresses
  m68knommu: make ColdFire Chip Select register definitions absolute addresses
  ...
2012-10-07 21:06:10 +09:00
Linus Torvalds 578f1ef91a MFD bits for the 3.7 merge window.
As usual we have a few new drivers:
 
 - TI LP8788
 - TI OMAP USB TLL
 - Maxim MAX8907
 - SMSC ECE1099
 - Dialog Semiconductor DA9055
 - A simpler syscon driver that allow us to get rid of the anatop one.
 
 Drivers are also gradually getting Device Tree and IRQ domain support.
 
 The following drivers got DT support:
 - palmas, 88pm860x, tc3589x and twl4030-audio
 
 And those ones now use the IRQ domain APIs:
 - 88pm860x, tc3589x, db8500_prcmu
 
 Also some other interesting changes:
 - Intel's ICH LPC now supports Lynx Point
 - TI's twl4030-audio added a GPO child
 - tps6527 enabled its backlight subdevice
 - The twl6030 pwm driver moved to the new PWM subsystem
 
 And finally a bunch of cleanup and casual fixes for mc13xxx, 88pm860x, palmas,
 ab8500, wm8994, wm5110, max8907 and the tps65xxx family.
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Merge tag 'mfd-3.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6

Pull MFD changes from Samuel Ortiz:
 "MFD bits for the 3.7 merge window.

  As usual we have a few new drivers:

   - TI LP8788
   - TI OMAP USB TLL
   - Maxim MAX8907
   - SMSC ECE1099
   - Dialog Semiconductor DA9055
   - A simpler syscon driver that allow us to get rid of the anatop one.

  Drivers are also gradually getting Device Tree and IRQ domain support.

  The following drivers got DT support:
   - palmas, 88pm860x, tc3589x and twl4030-audio

  And those ones now use the IRQ domain APIs:
   - 88pm860x, tc3589x, db8500_prcmu

  Also some other interesting changes:
   - Intel's ICH LPC now supports Lynx Point
   - TI's twl4030-audio added a GPO child
   - tps6527 enabled its backlight subdevice
   - The twl6030 pwm driver moved to the new PWM subsystem

  And finally a bunch of cleanup and casual fixes for mc13xxx, 88pm860x,
  palmas, ab8500, wm8994, wm5110, max8907 and the tps65xxx family."

Fix up various annoying conflicts: the DT and IRQ domain support came in
twice and was already in 3.6. And then it was apparently rebased.

Guys, DON'T REBASE!

* tag 'mfd-3.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (89 commits)
  ARM: dts: Enable 88pm860x pmic
  mfd: 88pm860x: Move gpadc init into touch
  mfd: 88pm860x: Device tree support
  mfd: 88pm860x: Use irqdomain
  mfd: smsc: Add support for smsc gpio io/keypad driver
  backlight: tps65217_bl: Add missing platform_set_drvdata in tps65217_bl_probe
  mfd: DA9055 core driver
  mfd: tps65910: Add alarm interrupt of TPS65910 RTC to mfd device list
  mfd: wm5110: Add register patches for revision B
  mfd: wm5110: Disable control interface error report for WM5110 rev B
  mfd: max8907: Remove regulator-compatible from DT docs
  backlight: Add TPS65217 WLED driver
  mfd: Add backlight as subdevice to the tps65217
  mfd: Provide the PRCMU with its own IRQ domain
  mfd: Fix max8907 sparse warning
  mfd: Add lp8788 mfd driver
  mfd: dbx500: Provide a more accurate smp_twd clock
  mfd: rc5t583: Fix warning messages
  regulator: palmas: Add DT support
  mfd: palmas: Change regulator defns to better suite DT
  ...
2012-10-05 12:01:30 +09:00
Linus Torvalds 61464c8357 ARM: soc: general cleanups
This is a large branch that contains a handful of different cleanups:
 
 - Fixing up the I/O space remapping on PCI on ARM. This is a series
   from Rob Herring that restructures how all pci devices allocate I/O
   space, and it's part of the work to allow multiplatform kernels.
 - A number of cleanup series for OMAP, moving and removing some
   headers, sparse irq rework and in general preparation for
   multiplatform.
 - Final removal of all non-DT boards for Tegra, it is now
   device-tree-only!
 - Removal of a stale platform, nxp4008. It's an old mobile chipset
   that is no longer in use, and was very likely never really used with
   a mainline kernel. We have not been able to find anyone interested
   in keeping it around in the kernel.
 - Removal of the legacy dmaengine driver on tegra
 
 + A handful of other things that I haven't described above.
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Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM soc general cleanups from Olof Johansson:
 "This is a large branch that contains a handful of different cleanups:

   - Fixing up the I/O space remapping on PCI on ARM.  This is a series
     from Rob Herring that restructures how all pci devices allocate I/O
     space, and it's part of the work to allow multiplatform kernels.
   - A number of cleanup series for OMAP, moving and removing some
     headers, sparse irq rework and in general preparation for
     multiplatform.
   - Final removal of all non-DT boards for Tegra, it is now
     device-tree-only!
   - Removal of a stale platform, nxp4008.  It's an old mobile chipset
     that is no longer in use, and was very likely never really used
     with a mainline kernel.  We have not been able to find anyone
     interested in keeping it around in the kernel.
   - Removal of the legacy dmaengine driver on tegra

  + A handful of other things that I haven't described above."

Fix up some conflicts with the staging tree (and because nxp4008 was
removed)

* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (184 commits)
  ARM: OMAP2+: serial: Change MAX_HSUART_PORTS to 6
  ARM: OMAP4: twl-common: Support for additional devices on i2c1 bus
  ARM: mmp: using for_each_set_bit to simplify the code
  ARM: tegra: harmony: fix ldo7 regulator-name
  ARM: OMAP2+: Make omap4-keypad.h local
  ARM: OMAP2+: Make l4_3xxx.h local
  ARM: OMAP2+: Make l4_2xxx.h local
  ARM: OMAP2+: Make l3_3xxx.h local
  ARM: OMAP2+: Make l3_2xxx.h local
  ARM: OMAP1: Move irda.h from plat to mach
  ARM: OMAP2+: Make hdq1w.h local
  ARM: OMAP2+: Make gpmc-smsc911x.h local
  ARM: OMAP2+: Make gpmc-smc91x.h local
  ARM: OMAP1: Move flash.h from plat to mach
  ARM: OMAP2+: Make debug-devices.h local
  ARM: OMAP1: Move board-voiceblue.h from plat to mach
  ARM: OMAP1: Move board-sx1.h from plat to mach
  ARM: OMAP2+: Make omap-wakeupgen.h local
  ARM: OMAP2+: Make omap-secure.h local
  ARM: OMAP2+: Make ctrl_module_wkup_44xx.h local
  ...
2012-10-01 18:19:05 -07:00
Linus Torvalds 47061eda25 ARM: soc: non-critical bug fixes
These were submitted as bug fixes before v3.6 but not considered important
 enough to be included in it. Some of them cross over to cleanup territory
 as well, and aren't strictly bugfixes.
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Merge tag 'fixes-non-critical' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull non-critical ARM soc bug fixes from Olof Johansson:
 "These were submitted as bug fixes before v3.6 but not considered
  important enough to be included in it.  Some of them cross over to
  cleanup territory as well, and aren't strictly bugfixes."

* tag 'fixes-non-critical' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
  ARM: nomadik: remove NAND_NO_READRDY use
  ARM: pxa: fix return value check in pxa2xx_drv_pcmcia_probe()
  ARM: SAMSUNG: Add missing variable declaration in s3c64xx_spi1_set_platdata()
  ARM: S3C24XX: removes unnecessary semicolon
  ARM: S3C24xx: delete double assignment
  ARM: EXYNOS: fix address for EXYNOS4 MDMA1
  ARM: EXYNOS: fixed SYSMMU setup definition to mate parameter name
  ARM: ep93xx: Move ts72xx.h out of include/mach
  ARM: ep93xx: use __iomem pointers for MMIO
  ARM: msm: Fix early debug uart mapping on some memory configs
  ARM: msm: io: Change the default static iomappings to be shared
  ARM: msm: io: Remove 7x30 iomap region from 7x00
  ARM: msm: Remove call to missing FPGA init on 8660
  ARM: OMAP4: wakeupgen: remove duplicate AUXCOREBOOT* read/write
  ARM: OMAP4: wakeupgen: Fix the typo in AUXCOREBOOT register save
  dma: tegra: make data used as *of_device_id.data const
  can: mpc5xxx_can: make data used as *of_device_id.data const
  macintosh/mediabay: make data used as *of_device_id.data const
  i2c/mpc: make data used as *of_device_id.data const
  mfd/da9052: make i2c_device_id array const
  ...
2012-10-01 18:02:07 -07:00
Greg Ungerer 944c3d81db m68knommu: clean up ColdFire 54xx General Timer definitions
Convert the ColdFire 54xx CPU General Timer register address definitions to
include the MCF_MBAR peripheral region offset. This makes them consistent
with all other 54xx address register definitions (in m54xxsim.h).

The goal is to reduce different definitions used (some including offsets and
others not) causing bugs when used incorrectly.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-09-27 23:34:03 +10:00
Olof Johansson 8e51036d34 This branch contains changes needed to make omap2+
work properly with sparse IRQ. It also removes
 dependencies to mach/hardware.h. These help moving
 things towards ARM single zImage support.
 
 This branch is based on a commit in tty-next
 branch with omap-devel-gpmc-fixed-for-v3.7 and
 cleanup-omap-tags-for-v3.7 merged in to keep things
 compiling and sort out some merge conflicts.
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Merge tag 'omap-cleanup-sparseirq-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup

From Tony Lindgren:

This branch contains changes needed to make omap2+
work properly with sparse IRQ. It also removes
dependencies to mach/hardware.h. These help moving
things towards ARM single zImage support.

This branch is based on a commit in tty-next
branch with omap-devel-gpmc-fixed-for-v3.7 and
cleanup-omap-tags-for-v3.7 merged in to keep things
compiling and sort out some merge conflicts.

* tag 'omap-cleanup-sparseirq-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP1: Move SoC specific headers from plat to mach for omap1
  ARM: OMAP2+ Move SoC specific headers to be local to mach-omap2
  ARM: OMAP: Split plat/hardware.h, use local soc.h for omap2+
  ARM: OMAP: Remove unused old gpio-switch.h
  ARM: OMAP1: Move plat/irqs.h to mach/irqs.h
  ARM: OMAP2+: Remove hardcoded IRQs and enable SPARSE_IRQ
  ARM: OMAP2+: Prepare for irqs.h removal
  W1: OMAP HDQ1W: Remove dependencies to mach/hardware.h
  Input: omap-keypad: Remove dependencies to mach includes
  ARM: OMAP: Move gpio.h to include/linux/platform_data
  ARM: OMAP2+: Remove hardcoded twl4030 gpio_base, irq_base and irq_end
  ARM: OMAP2+: Remove unused nand_irq for GPMC
  ARM: OMAP2+: Make INTCPS_NR_IRQS local for mach-omap2/irq.c
  ARM: OMAP1: Define OMAP1_INT_I2C locally
  ARM: OMAP1: Move define of OMAP_LCD_DMA to dma.h
2012-09-16 20:05:06 -07:00
James Ralston 7fb9c1a485 mfd: lpc_ich: Add Device IDs for Intel Lynx Point-LP PCH
This patch adds the Watchdog Timer Device IDs for the Intel Lynx Point-LP PCH.
The Device IDs are defined in drivers/mfd/lpc_ich.c

Signed-off-by: James Ralston <james.d.ralston@intel.com>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-09-16 00:39:47 +02:00
Olof Johansson 1a87676206 Merge branch 'ofdeviceiddata' of git://git.pengutronix.de/git/ukl/linux into next/fixes-non-critical
From  "Uwe Kleine-K�nig" <u.kleine-koenig@pengutronix.de>:

this is the 2nd version of this series whose goal is to make struct
of_device_id.data const. Conceptually a driver must not modify the data
contained there so making it const is the right thing.

v1 of this series was sent with Message-id:
1342182734-321-1-git-send-email-y. Changes since then are:
 - powerpc fixes
 - several new consts that were found by Arnd that are possible after
   patch 19.

Arnd suggested to take this series via arm-soc late for 3.6 in one go
because patch 19 depends on the former patches but is a precondition to
the latter and it fixes a few warnings. So getting it in via the
respective maintainer trees would need a much bigger coordination
effort. That means I prefer getting Acks over you taking the patch.

Vinod Koul already took
        dmaengine: at_hdmac: add a few const qualifiers
that is in next-20120723 as 7fd63ccdad now. Vinod, I don't follow your
pull requests, but assuming you didn't let it already pull for 3.6 I
suggest you drop it from your queue and I just take your Ack.

This series was build tested for arm (all defconfigs) and powerpc (all
defconfigs and an allyesconfig) and grep didn't find more issues. As
before it introduces a warning in drivers/regulator/twl-regulator.c.
This driver does modify its .of_match_table when a device is bound which
doesn't fits the concept of independant devices. Arnd noticed another
new warning in drivers/scsi/qlogicpti.c that isn't that easy to resolve,
because the pointer to (now) const data is passed as first argument to
scsi_host_alloc. To fix that properly struct Scsi_Host.hostt needs to
get a const, too. Alternatively I could introduce a cast removing the
const, but I don't like that.

* 'ofdeviceiddata' of git://git.pengutronix.de/git/ukl/linux: (25 commits)
  dma: tegra: make data used as *of_device_id.data const
  can: mpc5xxx_can: make data used as *of_device_id.data const
  macintosh/mediabay: make data used as *of_device_id.data const
  i2c/mpc: make data used as *of_device_id.data const
  mfd/da9052: make i2c_device_id array const
  powerpc/fsl_msi: drop unneeded cast to non-const pointer
  gpio/gpio-omap: make platformdata used as *of_device_id.data const
  of: add const to struct *of_device_id.data
  dma: tegra: make tegra_dma.chip_data a pointer to const data
  watchdog/mpc8xxx: add a const qualifier
  powerpc/celleb_pci: add a const qualifier
  powerpc/fsl_msi: add a const qualifier
  powerpc/83xx: add a const qualifier
  macintosh/mediabay: add a const qualifier
  mmc/omap_hsmmc: add a const qualifier
  i2c/mpc: add a const qualifier
  i2c/i2c-omap: add a const qualifier
  gpio/mpc8xxx: add a const qualifier
  gpio/gpio-omap.c: add a const qualifier
  misc/atmel_tc: make atmel_tc.tcb_config member point to const data

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[olof: repulled a v3 version of the branch that rebased to add some more
acked-bys and added one more patch on top for tegra]
Signed-off-by: Olof Johansson <olof@lixom.net>
2012-09-13 00:15:00 -07:00
Olof Johansson 025c95a682 Merge branch 'clk' of git://github.com/hzhuang1/linux into next/cleanup
* 'clk' of git://github.com/hzhuang1/linux:
  ARM: mmp: remove unused definition in APBC and APMU
  ARM: mmp: move mmp2 clock definition to separated file
  arm: mmp: move pxa910 clock definition to separated file
  arm: mmp: move pxa168 clock definition to separated file
  arm: mmp: make private clock definition exclude from common clock
  + Linux 3.6-rc4
2012-09-12 22:34:11 -07:00
Tony Lindgren dbc0416104 ARM: OMAP: Split plat/hardware.h, use local soc.h for omap2+
As the plat and mach includes need to disappear for single zImage work,
we need to remove plat/hardware.h.

Do this by splitting plat/hardware.h into omap1 and omap2+ specific files.

The old plat/hardware.h already has omap1 only defines, so it gets moved
to mach/hardware.h for omap1. For omap2+, we use the local soc.h
that for now just includes the related SoC headers to keep this patch more
readable.

Note that the local soc.h still includes plat/cpu.h that can be dealt
with in later patches. Let's also include plat/serial.h from common.h for
all the board-*.c files. This allows making the include files local later
on without patching these files again.

Note that only minimal changes are done in this patch for the
drivers/watchdog/omap_wdt.c driver to keep things compiling. Further
patches are needed to eventually remove cpu_is_omap usage in the drivers.

Also only minimal changes are done to sound/soc/omap/* to remove the
unneeded includes and to define OMAP44XX_MCPDM_L3_BASE locally so there's
no need to include omap44xx.h.

While at it, also sort some of the includes in the standard way.

Cc: linux-watchdog@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Jarkko Nikula <jarkko.nikula@bitmer.com>
Cc: Liam Girdwood <lrg@ti.com>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-09-12 18:06:31 -07:00
Olof Johansson 0558d7a8ed Merge branch 'ks8695/timer' into next/cleanup
* ks8695/timer:
  watchdog: ks8695: sink registers into driver
2012-09-11 22:40:57 -07:00
Linus Walleij cab463a295 watchdog: ks8695: sink registers into driver
Commit 70adc3f32a
"ARM: ks8695: merge the timer header into the timer driver"
accidentally broke the ks8695 watchdog since it was using
the timer registers in watchdog mode.

Perform the same operation here: push the registers down
into the driver, so it is self-contained, and we can keep
depopulating the <mach/*> namespace.

Reported-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Olof Johansson <olof@lixom.net>
2012-09-11 22:40:32 -07:00
Arnd Bergmann 639397e486 watchdog/mpc8xxx: add a const qualifier
This prepares *of_device_id.data becoming const. Without this change
the following warning would occur:

	drivers/watchdog/mpc8xxx_wdt.c: In function 'mpc8xxx_wdt_probe':
	drivers/watchdog/mpc8xxx_wdt.c:203:11: warning: assignment discards 'const' qualifier from pointer target type [enabled by default]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[ukl: split Arnd's patch by driver and add changelog]
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2012-09-11 08:57:20 +02:00
Wei Yongjun b232a70a17 watchdog: move the dereference below the NULL test
The dereference should be moved below the NULL test.

spatch with a semantic match is used to found this.
(http://coccinelle.lip6.fr/)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-09-10 17:33:17 +02:00
Toshi Kani 308b135e4f hpwdt: Fix kdump issue in hpwdt
kdump can be interrupted by watchdog timer when the timer is left
activated on the crash kernel. Changed the hpwdt driver to disable
watchdog timer at boot-time. This assures that watchdog timer is
disabled until /dev/watchdog is opened, and prevents watchdog timer
to be left running on the crash kernel.

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Tested-by: Lisa Mitchell <lisa.mitchell@hp.com>
Signed-off-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@vger.kernel.org>
2012-09-10 17:28:08 +02:00
Sachin Kamat 3e5531caff watchdog: da9052: Remove duplicate inclusion of delay.h
delay.h header file was included twice.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-08-29 17:13:06 +02:00
Roland Stigge d684f05f2d ARM: mach-pnx4008: Remove architecture
This patch removes the ARM architecture mach-pnx4008. No direct support or user
feedback since 2006. Acknowledgements from NXP/Philips and Linux arm-soc
maintainers.

Signed-off-by: Roland Stigge <stigge@antcom.de>
2012-08-26 16:30:37 +02:00
Tiejun Chen 127c6e7311 booke/wdt: some ioctls do not return values properly
Fix some booke wdt ioctls return value error.

Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-08-17 09:03:51 -05:00
Linus Torvalds 44d82e2963 ARM: arm-soc Marvell Orion device-tree updates
This branch contains a set of device-tree conversions for Marvell Orion
 platforms that were staged early but took a few tries to get the branch
 into a format where it was suitable for us to pick up.
 
 Given that most people working on these platforms are hobbyists with
 limited time, we were a bit more flexible with merging it even though
 it came in late.
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Merge tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc Marvell Orion device-tree updates from Olof Johansson:
 "This contains a set of device-tree conversions for Marvell Orion
  platforms that were staged early but took a few tries to get the
  branch into a format where it was suitable for us to pick up.

  Given that most people working on these platforms are hobbyists with
  limited time, we were a bit more flexible with merging it even though
  it came in late."

* tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (21 commits)
  ARM: Kirkwood: Replace mrvl with marvell
  ARM: Kirkwood: Describe GoFlex Net LEDs and SATA in DT.
  ARM: Kirkwood: Describe Dreamplug LEDs in DT.
  ARM: Kirkwood: Describe iConnects LEDs in DT.
  ARM: Kirkwood: Describe iConnects temperature sensor in DT.
  ARM: Kirkwood: Describe IB62x0 LEDs in DT.
  ARM: Kirkwood: Describe IB62x0 gpio-keys in DT.
  ARM: Kirkwood: Describe DNS32? gpio-keys in DT.
  ARM: Kirkwood: Move common portions into a kirkwood-dnskw.dtsi
  ARM: Kirkwood: Replace DNS-320/DNS-325 leds with dt bindings
  ARM: Kirkwood: Describe DNS325 temperature sensor in DT.
  ARM: Kirkwood: Use DT to configure SATA device.
  ARM: kirkwood: use devicetree for SPI on dreamplug
  ARM: kirkwood: Add LS-XHL and LS-CHLv2 support
  ARM: Kirkwood: Initial DTS support for Kirkwood GoFlex Net
  ARM: Kirkwood: Add basic device tree support for QNAP TS219.
  ATA: sata_mv: Add device tree support
  ARM: Orion: DTify the watchdog timer.
  ARM: Orion: Add arch support needed for I2C via DT.
  ARM: kirkwood: use devicetree for orion-spi
  ...

Conflicts:
	drivers/watchdog/orion_wdt.c
2012-08-02 11:50:24 -07:00
Linus Torvalds cea8f46c36 Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM updates from Russell King:
 "First ARM push of this merge window, post me coming back from holiday.
  This is what has been in linux-next for the last few weeks.  Not much
  to say which isn't described by the commit summaries."

* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (32 commits)
  ARM: 7463/1: topology: Update cpu_power according to DT information
  ARM: 7462/1: topology: factorize the update of sibling masks
  ARM: 7461/1: topology: Add arch_scale_freq_power function
  ARM: 7456/1: ptrace: provide separate functions for tracing syscall {entry,exit}
  ARM: 7455/1: audit: move syscall auditing until after ptrace SIGTRAP handling
  ARM: 7454/1: entry: don't bother with syscall tracing on ret_from_fork path
  ARM: 7453/1: audit: only allow syscall auditing for pure EABI userspace
  ARM: 7452/1: delay: allow timer-based delay implementation to be selected
  ARM: 7451/1: arch timer: implement read_current_timer and get_cycles
  ARM: 7450/1: dcache: select DCACHE_WORD_ACCESS for little-endian ARMv6+ CPUs
  ARM: 7449/1: use generic strnlen_user and strncpy_from_user functions
  ARM: 7448/1: perf: remove arm_perf_pmu_ids global enumeration
  ARM: 7447/1: rwlocks: remove unused branch labels from trylock routines
  ARM: 7446/1: spinlock: use ticket algorithm for ARMv6+ locking implementation
  ARM: 7445/1: mm: update CONTEXTIDR register to contain PID of current process
  ARM: 7444/1: kernel: add arch-timer C3STOP feature
  ARM: 7460/1: remove asm/locks.h
  ARM: 7439/1: head.S: simplify initial page table mapping
  ARM: 7437/1: zImage: Allow DTB command line concatenation with ATAG_CMDLINE
  ARM: 7436/1: Do not map the vectors page as write-through on UP systems
  ...
2012-07-27 15:14:26 -07:00
Russell King 91b006def3 Merge branches 'audit', 'delay', 'fixes', 'misc' and 'sta2x11' into for-linus 2012-07-27 23:06:32 +01:00
Andrew Lunn 1e7bad0f5b ARM: Orion: DTify the watchdog timer.
Add device tree support to the Orion watchdog timer, and enable its
use in the kirkwood devices using device tree.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@googlemail.com>
Tested-by: Simon Baatz <gmbnomis@gmail.com>
2012-07-27 16:48:38 +02:00
Linus Torvalds 3539fc544f Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog changes from Wim Van Sebroeck:
 - conversion of iTCO_wdt and orion_wdt to the generic watchdog API
 - uses module_platform_driver() for s3c2410_wdt
 - Adds support for Jetway JNF99 Motherboard
 - various fixes

* git://www.linux-watchdog.org/linux-watchdog:
  watchdog: orion_wdt: Convert driver to watchdog core
  watchdog: s3c2410_wdt: Use module_platform_driver()
  watchdog: sch311x_wdt: Fix Polarity when starting watchdog
  Watchdog: OMAP: Fix the runtime pm code to avoid module getting stuck intransition state.
  watchdog: ie6xx_wdt: section mismatch in ie6xx_wdt_probe()
  watchdog: bcm63xx_wdt: fix driver section mismatch
  watchdog: iTCO_wdt.c: convert to watchdog core
  char/ipmi: remove local ioctl defines replaced by generic ones
  watchdog: xilinx: Read clock frequency directly from DT node
  watchdog: coh901327_wdt: use clk_prepare/unprepare
  watchdog: f71808e_wdt: Add support for Jetway JNF99 motherboard
2012-07-24 13:26:08 -07:00
Linus Torvalds 83c7f72259 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc updates from Benjamin Herrenschmidt:
 "Notable highlights:

   - iommu improvements from Anton removing the per-iommu global lock in
     favor of dividing the DMA space into pools, each with its own lock,
     and hashed on the CPU number.  Along with making the locking more
     fine grained, this gives significant improvements in multiqueue
     networking scalability.

   - Still from Anton, we know provide a vdso based variant of getcpu
     which makes sched_getcpu with the appropriate glibc patch something
     like 18 times faster.

   - More anton goodness (he's been busy !) in other areas such as a
     faster __clear_user and copy_page on P7, various perf fixes to
     improve sampling quality, etc...

   - One more step toward removing legacy i2c interfaces by using new
     device-tree based probing of platform devices for the AOA audio
     drivers

   - A nice series of patches from Michael Neuling that helps avoiding
     confusion between register numbers and litterals in assembly code,
     trying to enforce the use of "%rN" register names in gas rather
     than plain numbers.

   - A pile of FSL updates

   - The usual bunch of small fixes, cleanups etc...

  You may spot a change to drivers/char/mem.  The patch got no comment
  or ack from outside, it's a trivial patch to allow the architecture to
  skip creating /dev/port, which we use to disable it on ppc64 that
  don't have a legacy brige.  On those, IO ports 0...64K are not mapped
  in kernel space at all, so accesses to /dev/port cause oopses (and
  yes, distros -still- ship userspace that bangs hard coded ports such
  as kbdrate)."

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (106 commits)
  powerpc/mpic: Create a revmap with enough entries for IPIs and timers
  Remove stale .rej file
  powerpc/iommu: Fix iommu pool initialization
  powerpc/eeh: Check handle_eeh_events() return value
  powerpc/85xx: Add phy nodes in SGMII mode for MPC8536/44/72DS & P2020DS
  powerpc/e500: add paravirt QEMU platform
  powerpc/mpc85xx_ds: convert to unified PCI init
  powerpc/fsl-pci: get PCI init out of board files
  powerpc/85xx: Update corenet64_smp_defconfig
  powerpc/85xx: Update corenet32_smp_defconfig
  powerpc/85xx: Rename P1021RDB-PC device trees to be consistent
  powerpc/watchdog: move booke watchdog param related code to setup-common.c
  sound/aoa: Adapt to new i2c probing scheme
  i2c/powermac: Improve detection of devices from device-tree
  powerpc: Disable /dev/port interface on systems without an ISA bridge
  of: Improve prom_update_property() function
  powerpc: Add "memory" attribute for mfmsr()
  powerpc/ftrace: Fix assembly trampoline register usage
  powerpc/hw_breakpoints: Fix incorrect pointer access
  powerpc: Put the gpr save/restore functions in their own section
  ...
2012-07-23 18:54:23 -07:00
Axel Lin 0dd6e4847e watchdog: orion_wdt: Convert driver to watchdog core
Convert orion_wdt driver to use watchdog framework API.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-07-23 12:51:09 +02:00
Sachin Kamat 6b761b2902 watchdog: s3c2410_wdt: Use module_platform_driver()
module_platform_driver() replaces module_init() and module_exit()
and makes the code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-07-23 12:50:51 +02:00
Wim Van Sebroeck 7732c6b96f watchdog: sch311x_wdt: Fix Polarity when starting watchdog
Some motherboards like the Advantech ARK3400 documentation
use a non-inverted GPIO pin. We fix this by assuming that
the BIOS will set the Polarity bit for the GPIO correctly
at startup and we keep the Bit-setting intact when we start
and stop the watchdog.

Reported-by: Jean-François Deverge <jf.deverge@gmail.com>
Signed-off-by: Dave Mueller <d.mueller@elsoft.ch>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-07-23 12:50:30 +02:00
Lokesh Vutla 41814eed41 Watchdog: OMAP: Fix the runtime pm code to avoid module getting stuck intransition state.
OMAP watchdog driver is adapted to runtime PM like a general device
driver but it is not appropriate. It is causing couple of functional
issues.

1. On OMAP4 SYSCLK can't be gated, because of issue with WDTIMER2 module,
which constantly stays in "in transition" state. Value of register
CM_WKUP_WDTIMER2_CLKCTRL is always 0x00010000 in this case.
Issue occurs immediately after first idle, when hwmod framework tries
to disable WDTIMER2 functional clock - "wd_timer2_fck". After this
module falls to "in transition" state, and SYSCLK gating is blocked.

2. Due to runtime PM, watchdog timer may be completely disabled.
In current code base watchdog timer is not disabled only because of
issue 1. Otherwise state of WDTIMER2 module will be "Disabled", and there
will be no interrupts from omap_wdt. In other words watchdog will not
work at all.

Watchdong is a special IP and it should not be disabled otherwise
purpose of it itself is defeated. Watchdog functional clock should
never be disabled. This patch updates the runtime PM handling in
driver so that runtime PM is limited only during probe/shutdown
and suspend/resume.

The patch fixes issue 1 and 2

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-07-23 12:50:11 +02:00
Gerard Snitselaar 0402450f45 watchdog: ie6xx_wdt: section mismatch in ie6xx_wdt_probe()
ie6xx_wdt_probe() calls ie6xx_wdt_debugfs_exit() as part of
it's error cleanup path, and ie6xx_wdt_debugfs_exit() is
currently annotated __devexit.

Signed-off-by: Gerard Snitselaar <dev@snitselaar.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-07-23 12:49:44 +02:00
Florian Fainelli 5a135f3c72 watchdog: bcm63xx_wdt: fix driver section mismatch
bcm63xx_wdt was used as a platform_driver but was not suffixed with
_driver, thus causing section mismatches, fix that.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-07-23 12:49:24 +02:00
Wim Van Sebroeck bff23431fe watchdog: iTCO_wdt.c: convert to watchdog core
This patch converts the iTCO_wdt watchdog driver to use the
generic watchdog framework.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-07-23 12:48:41 +02:00
Michal Simek 90fe6c608f watchdog: xilinx: Read clock frequency directly from DT node
Do not use clock-frequency property from parent node.
Use it from watchdog node.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-By: Alejandro Cabrera <acabrera@udio.cujae.edu.cu>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-07-23 12:47:00 +02:00
Linus Walleij c362cb597b watchdog: coh901327_wdt: use clk_prepare/unprepare
Make sure we prepare/unprepare the COH901327 watchdog timer
as is required by the clk API especially if you use common
clock.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by : Pankaj Jangra <jangra.pankaj9@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-07-23 12:46:49 +02:00
Justin Wheeler 3017020dc7 watchdog: f71808e_wdt: Add support for Jetway JNF99 motherboard
The Jetway JNF99 motherboard features a F71869 SuperIO chip, but its
watchdog chipset ID appears to be 1007 (as opposed to 0814).  Some testing
confirmed it behaves the exact same as 0814. So add this chipset ID to the
module's ID list so that the Fintek watchdog driver can correctly identify
and access it.

Signed-off-by: Justin Wheeler <jwheeler@datademons.com>
Acked-by: Giel van Schijndel <me@mortis.eu>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-07-23 12:46:38 +02:00
Shaohui Xie be0884ce23 powerpc/watchdog: replace CONFIG_FSL_BOOKE with CONFIG_PPC_FSL_BOOK3E
CONFIG_FSL_BOOKE is only defined in 32-bit, CONFIG_PPC_FSL_BOOK3E is
defined in both 32-bit and 64-bit, so use CONFIG_PPC_FSL_BOOK3E to make
driver work in 32-bit & 64-bit.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-07-10 07:07:22 -05:00
Russell King 3169663ac5 ARM: sa11x0/pxa: convert OS timer registers to IOMEM
Make the OS timer registers have IOMEM like properities so they can
be passed to readl_relaxed/writel_relaxed() et.al. rather than being
straight volatile dereferences.  Add linux/io.h includes where
required.

linux/io.h includes added to arch/arm/mach-sa1100/cpu-sa1100.c,
 arch/arm/mach-sa1100/jornada720_ssp.c, arch/arm/mach-sa1100/leds-lart.c
 drivers/input/touchscreen/jornada720_ts.c, drivers/pcmcia/sa1100_shannon.c
from Arnd.

This fixes these warnings:

arch/arm/mach-sa1100/time.c: In function 'sa1100_timer_init':
arch/arm/mach-sa1100/time.c:104: warning: passing argument 1 of 'clocksource_mmio_init' discards qualifiers from pointer target type
arch/arm/mach-pxa/time.c: In function 'pxa_timer_init':
arch/arm/mach-pxa/time.c:126: warning: passing argument 1 of 'clocksource_mmio_init' discards qualifiers from pointer target type

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-07-09 17:37:35 +01:00
Xiao Jiang e6ca04eaab watchdog: omap_wdt: add device tree support
Add device table for omap_wdt to support dt.

Signed-off-by: Xiao Jiang <jgq516@gmail.com>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-07-09 01:56:05 -07:00
Wim Van Sebroeck 8b9468d496 watchdog: core: fix WDIOC_GETSTATUS return value
In commit 7a87982420 we added
a wrapper for the WDIOC_GETSTATUS ioctl call. The code results
however in a different behaviour: it returns an error if the
driver doesn't support the status operation. This is not
according to the API that says that when we don't support
the status operation, that we just should return a 0 value.
Only when the device isn't there anymore, we should return an
error.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-06-28 20:40:56 +02:00
Mingarelli, Thomas a089361cf5 watchdog: hpwdt: Unregister NMI events on exit.
This patch is to unregister for NMI events upon exit. Also we are now
making the default setting for allow_kdump enabled.

Signed-off-by: Thomas Mingarelli <thomas.mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-06-28 20:40:31 +02:00
Jan Beulich e5de32e3ec watchdog: iTCO_wdt: add platform driver module alias
The recent conversion of iTCO_wdt resulted in the driver no longer
getting loaded automatically, since it no longer has a
MODULE_DEVICE_TABLE() included. As the lpc_ich driver now creates a
platform device, auto-loading can easily be done by having a respective
module alias in place.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: Aaron Sierra <asierra@xes-inc.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-06-28 20:40:10 +02:00
Viresh Kumar 10d8935f46 Viresh has moved
viresh.kumar@st.com email-id doesn't exist anymore as I have left the
company.  Replace ST's id with viresh.linux@gmail.com.

It also updates .mailmap file to fix address for 'git shortlog'

Signed-off-by: Viresh Kumar <viresh.linux@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-06-20 14:39:36 -07:00
Randy Dunlap 4b98b32aef watchdog: iTCO_wdt.c: fix printk format warnings
Fix printk format warnings:

drivers/watchdog/iTCO_wdt.c:577:3: warning: format '%04llx' expects type 'long long unsigned int', but argument 2 has type 'resource_size_t'
drivers/watchdog/iTCO_wdt.c:594:3: warning: format '%04llx' expects type 'long long unsigned int', but argument 2 has type 'resource_size_t'
drivers/watchdog/iTCO_wdt.c:600:2: warning: format '%04llx' expects type 'long long unsigned int', but argument 4 has type 'resource_size_t'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 08:16:48 +02:00
Viresh Kumar d9df0ef1eb watchdog: sp805_wdt: Add clk_{un}prepare support
clk_{un}prepare() routines are required for required on some platforms to run
part of clk enable/disable() routines from contexts that can schedule.

This patch adds support for these routines in sp805 driver.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:56:44 +02:00
Viresh Kumar 4a516539fa watchdog: sp805_wdt: convert to watchdog core
This patch converts existing sp805 watchdog driver to use already in place
common infrastructure present in watchdog core. With this lot of code goes away.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:56:41 +02:00
Ashish Jangam 664a0d7862 Watchdog: DA9052/53 PMIC watchdog support
This driver adds support for the watchdog functionality provided by
the Dialog Semiconductor DA9052 PMIC chip.

Tested on samsung smdkv6410 and i.mx53 QS boards.

Signed-off-by: Anthony Olech <Anthony.Olech@diasemi.com>
Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:56:12 +02:00
Hans de Goede e907df3272 watchdog: Add support for dynamically allocated watchdog_device structs
If a driver's watchdog_device struct is part of a dynamically allocated
struct (which it often will be), merely locking the module is not enough,
even with a drivers module locked, the driver can be unbound from the device,
examples:
1) The root user can unbind it through sysfd
2) The i2c bus master driver being unloaded for an i2c watchdog

I will gladly admit that these are corner cases, but we still need to handle
them correctly.

The fix for this consists of 2 parts:
1) Add ref / unref operations, so that the driver can refcount the struct
   holding the watchdog_device struct and delay freeing it until any
   open filehandles referring to it are closed
2) Most driver operations will do IO on the device and the driver should not
   do any IO on the device after it has been unbound. Rather then letting each
   driver deal with this internally, it is better to ensure at the watchdog
   core level that no operations (other then unref) will get called after
   the driver has called watchdog_unregister_device(). This actually is the
   bulk of this patch.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:55:31 +02:00
Hans de Goede f4e9c82f64 watchdog: Add Locking support
This patch fixes some potential multithreading issues, despite only
allowing one process to open the /dev/watchdog device, we can still get
called multiple times at the same time, since a program could be using thread,
or could share the fd after a fork.

This causes 2 potential problems:
1) watchdog_start / open do an unlocked test_n_set / test_n_clear,
   if these 2 race, the watchdog could be stopped while the active
   bit indicates it is running or visa versa.

2) Most watchdog_dev drivers probably assume that only one
   watchdog-op will get called at a time, this is not necessary
   true atm.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:55:23 +02:00
Hans de Goede 7a87982420 watchdog: watchdog_dev: Rewrite wrapper code
Rewrite and extend the wrapper code so that we can easily introduce
locking (this to be able to prevent potential multithreading issues).

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:55:17 +02:00
Alan Cox 3dfd6218da watchdog: use dev_ functions
While they are registered all our watchdogs now have a valid device object
so we can in turn use that to report problems nicely.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:54:57 +02:00
Alan Cox d6b469d915 watchdog: create all the proper device files
Create the watchdog class and it's associated devices.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:54:46 +02:00
Alan Cox 45f5fed30a watchdog: Add multiple device support
We keep the old /dev/watchdog interface file for the first watchdog via
miscdev. This is basically a cut and paste of the relevant interface code
from the rtc driver layer tweaked for watchdog.

Revised to fix problems noted by Hans de Goede

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:54:25 +02:00
Wim Van Sebroeck fb5f665816 watchdog: watchdog_core.h: make functions extern
Make the functions in watchdog_core.h extern like it should.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:54:07 +02:00
Wim Van Sebroeck 6cfb5aa836 watchdog: correct the name of the watchdog_core inlude file
The watchdog_core include file should have been named
watchdog_core.h and not watchdog_dev.h . Correct this.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:54:03 +02:00
Viresh Kumar 257f8c4aae watchdog: Add watchdog_active() routine
Some watchdog may need to check if watchdog is ACTIVE or not, for example in
their suspend/resume hooks.

This patch adds this routine and changes the core drivers to use it.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:53:46 +02:00
H Hartley Sweeten 09a46e7397 watchdog: watchdog_dev: include private header to pickup global symbol prototypes
Include the private watchdog_dev.h header to pickup the prototypes for the
watchdog_dev_register/unregister functions.

This quiets the following sparse warnings:

warning: symbol 'watchdog_dev_register' was not declared. Should it be static?
warning: symbol 'watchdog_dev_unregister' was not declared. Should it be static?

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:53:28 +02:00
Linus Torvalds 7e5b2db77b Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 "The whole series has been sitting in -next for quite a while with no
  complaints.  The last change to the series was before the weekend the
  removal of an SPI patch which Grant - even though previously acked by
  himself - appeared to raise objections.  So I removed it until the
  situation is clarified.  Other than that all the patches have the acks
  from their respective maintainers, all MIPS and x86 defconfigs are
  building fine and I'm not aware of any problems introduced by this
  series.

  Among the key features for this patch series is a sizable patchset for
  Lantiq which among other things introduces support for Lantiq's
  flagship product, the FALCON SOC.  It also means that the opensource
  developers behind this patchset have overtaken Lantiq's competing
  inhouse development team that was working behind closed doors.

  Less noteworthy the ath79 patchset which adds support for a few more
  chip variants, cleanups and fixes.  Finally the usual dose of tweaking
  of generic code."

Fix up trivial conflicts in arch/mips/lantiq/xway/gpio_{ebu,stp}.c where
printk spelling fixes clashed with file move and eventual removal of the
printk.

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (81 commits)
  MIPS: lantiq: remove orphaned code
  MIPS: Remove all -Wall and almost all -Werror usage from arch/mips.
  MIPS: lantiq: implement support for FALCON soc
  MTD: MIPS: lantiq: verify that the NOR interface is available on falcon soc
  MTD: MIPS: lantiq: implement OF support
  watchdog: MIPS: lantiq: implement OF support and minor fixes
  SERIAL: MIPS: lantiq: implement OF support
  GPIO: MIPS: lantiq: convert gpio-stp-xway to OF
  GPIO: MIPS: lantiq: convert gpio-mm-lantiq to OF and of_mm_gpio
  GPIO: MIPS: lantiq: move gpio-stp and gpio-ebu to the subsystem folder
  MIPS: pci: convert lantiq driver to OF
  MIPS: lantiq: convert dma to platform driver
  MIPS: lantiq: implement support for clkdev api
  MIPS: lantiq: drop ltq_gpio_request() and gpio_to_irq()
  OF: MIPS: lantiq: implement irq_domain support
  OF: MIPS: lantiq: implement OF support
  MIPS: lantiq: drop mips_machine support
  OF: PCI: const usage needed by MIPS
  MIPS: Cavium: Remove smp_reserve_lock.
  MIPS: Move cache setup to setup_arch().
  ...
2012-05-29 18:27:19 -07:00
Linus Torvalds 4b78147468 MFD changes for 3.5
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Merge tag 'mfd-3.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6

Pull MFD changes from Samuel Ortiz:
 "Besides the usual cleanups, this one brings:

   * Support for 5 new chipsets: Intel's ICH LPC and SCH Centerton,
     ST-E's STAX211, Samsung's MAX77693 and TI's LM3533.

   * Device tree support for the twl6040, tps65910, da9502 and ab8500
     drivers.

   * Fairly big tps56910, ab8500 and db8500 updates.

   * i2c support for mc13xxx.

   * Our regular update for the wm8xxx driver from Mark."

Fix up various conflicts with other trees, largely due to ab5500 removal
etc.

* tag 'mfd-3.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (106 commits)
  mfd: Fix build break of max77693 by adding REGMAP_I2C option
  mfd: Fix twl6040 build failure
  mfd: Fix max77693 build failure
  mfd: ab8500-core should depend on MFD_DB8500_PRCMU
  gpio: tps65910: dt: process gpio specific device node info
  mfd: Remove the parsing of dt info for tps65910 gpio
  mfd: Save device node parsed platform data for tps65910 sub devices
  mfd: Add r_select to lm3533 platform data
  gpio: Add Intel Centerton support to gpio-sch
  mfd: Emulate active low IRQs as well as active high IRQs for wm831x
  mfd: Mark two lm3533 zone registers as volatile
  mfd: Fix return type of lm533 attribute is_visible
  mfd: Enable Device Tree support in the ab8500-pwm driver
  mfd: Enable Device Tree support in the ab8500-sysctrl driver
  mfd: Add support for Device Tree to twl6040
  mfd: Register the twl6040 child for the ASoC codec unconditionally
  mfd: Allocate twl6040 IRQ numbers dynamically
  mfd: twl6040 code cleanup in interrupt initialization part
  mfd: Enable ab8500-gpadc driver for Device Tree
  mfd: Prevent unassigned pointer from being used in ab8500-gpadc driver
  ...
2012-05-29 11:53:11 -07:00
Linus Torvalds 2795343705 arm-soc: clock driver changes
The new clock subsystem was merged in linux-3.4 without any users, this
 now moves the first three platforms over to it: imx, mxs and spear.
 
 The series also contains the changes for the clock subsystem itself,
 since Mike preferred to have it together with the platforms that require
 these changes, in order to avoid interdependencies and conflicts.
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Merge tag 'clock' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc clock driver changes from Olof Johansson:
 "The new clock subsystem was merged in linux-3.4 without any users,
  this now moves the first three platforms over to it: imx, mxs and
  spear.

  The series also contains the changes for the clock subsystem itself,
  since Mike preferred to have it together with the platforms that
  require these changes, in order to avoid interdependencies and
  conflicts."

Fix up trivial conflicts in arch/arm/mach-kirkwood/common.c (code
removed in one branch, added OF support in another) and
drivers/dma/imx-sdma.c (independent changes next to each other).

* tag 'clock' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (97 commits)
  clk: Fix CLK_SET_RATE_GATE flag validation in clk_set_rate().
  clk: Provide dummy clk_unregister()
  SPEAr: Update defconfigs
  SPEAr: Add SMI NOR partition info in dts files
  SPEAr: Switch to common clock framework
  SPEAr: Call clk_prepare() before calling clk_enable
  SPEAr: clk: Add General Purpose Timer Synthesizer clock
  SPEAr: clk: Add Fractional Synthesizer clock
  SPEAr: clk: Add Auxiliary Synthesizer clock
  SPEAr: clk: Add VCO-PLL Synthesizer clock
  SPEAr: Add DT bindings for SPEAr's timer
  ARM i.MX: remove now unused clock files
  ARM: i.MX6: implement clocks using common clock framework
  ARM i.MX35: implement clocks using common clock framework
  ARM i.MX5: implement clocks using common clock framework
  ARM: Kirkwood: Replace clock gating
  ARM: Orion: Audio: Add clk/clkdev support
  ARM: Orion: PCIE: Add support for clk
  ARM: Orion: XOR: Add support for clk
  ARM: Orion: CESA: Add support for clk
  ...
2012-05-26 12:42:29 -07:00
Linus Torvalds 0b87da68a0 Merge git://www.linux-watchdog.org/linux-watchdog
Pull first set of watchdog updates from Wim Van Sebroeck:
 "This pull contains:

   - The removal of ixp2000_wdt
   - The addition of ie6xx_wdt
   - Some documentation fixes
   - Small fixes and improvements

  (Note: Part 2 will contain generic watchdog core changes + conversion
  of some more drivers)"

* git://www.linux-watchdog.org/linux-watchdog:
  Documentation/watchdog: Fix the file descriptor leak when no cmdline arg given
  Documentation/watchdog: close the fd when cmdline arg given
  Documentation/watchdog: Fix a small typo
  watchdog: s3c2410_wdt: Set timeout to actually achieved timeout
  watchdog: wm831x: Convert to gpio_request_one()
  watchdog: via_wdt: depends on PCI
  watchdog: ie6xx_wdt needs io.h
  watchdog: ie6xx_wdt.c: fix printk format warning
  watchdog: Add watchdog driver for Intel Atom E6XX
  watchdog: it87_wdt: Add support for IT8728F watchdog.
  watchdog: i6300esb: don't depend on X86
  watchdog: Use module_pci_driver
  watchdog: sch311x_wdt.c: Remove RESGEN
  watchdog: s3c2410-wdt: Use of_match_ptr().
  watchdog: Device tree support for pnx4008-wdt
  watchdog: ar7_wdt.c: use devm_request_and_ioremap
  watchdog: remove ixp2000 driver
  watchdog: sp5100_tco.c: quiet sparse noise about using plain integer was NULL pointer
2012-05-23 15:42:42 -07:00
Linus Torvalds 1d767cae4d SuperH updates for 3.5-rc1 merge window
- New CPUs: SH7734 (SH-4A), SH7264 and SH7269 (SH-2A)
 - New boards: RSK2+SH7264, RSK2+SH7269
 - Unbreaking kgdb for SMP
 - Consolidation of _32/_64 page fault handling.
 - watchdog and legacy DMA chainsawing, part 1
 - Conversion to evt2irq() hwirq lookup, to support relocation
   of vectored IRQs for irqdomains.
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Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh

Pull SuperH updates from Paul Mundt:
 - New CPUs: SH7734 (SH-4A), SH7264 and SH7269 (SH-2A)
 - New boards: RSK2+SH7264, RSK2+SH7269
 - Unbreaking kgdb for SMP
 - Consolidation of _32/_64 page fault handling.
 - watchdog and legacy DMA chainsawing, part 1
 - Conversion to evt2irq() hwirq lookup, to support relocation of
   vectored IRQs for irqdomains.

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh: (98 commits)
  sh: intc: Kill off special reservation interface.
  sh: Enable PIO API for hp6xx and se770x.
  sh: Kill off machvec IRQ hinting.
  sh: dma: More legacy cpu dma chainsawing.
  sh: Kill off MAX_DMA_ADDRESS leftovers.
  sh: Tidy up some of the cpu legacy dma header mess.
  sh: Move sh4a dma header from cpu-sh4 to cpu-sh4a.
  sh64: Fix up vmalloc fault range check.
  Revert "sh: Ensure fixmap and store queue space can co-exist."
  serial: sh-sci: Fix for port types without BRI interrupts.
  sh: legacy PCI evt2irq migration.
  sh: cpu dma evt2irq migration.
  sh: sh7763rdp evt2irq migration.
  sh: sdk7780 evt2irq migration.
  sh: migor evt2irq migration.
  sh: landisk evt2irq migration.
  sh: kfr2r09 evt2irq migration.
  sh: ecovec24 evt2irq migration.
  sh: ap325rxa evt2irq migration.
  sh: urquell evt2irq migration.
  ...
2012-05-23 09:00:40 -07:00
Hans de Goede 5f2430f554 watchdog: s3c2410_wdt: Set timeout to actually achieved timeout
While rebasing my "watchdog_dev: Let the driver update the timeout field on
set_timeout success" patch (before I noticed it was already picked up by Wim),
I noticed that the s3c2410_wdt driver may not always have a 1 second
resolution, this patch changes s3c2410wdt_set_heartbeat to update the
timeout to the actually achieved timeout.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-23 16:26:20 +02:00
Mark Brown abcf834b80 watchdog: wm831x: Convert to gpio_request_one()
Use the more modern API.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-23 16:26:07 +02:00
Randy Dunlap 690e7a706d watchdog: via_wdt: depends on PCI
via_wdt is a PCI driver so it should depend on PCI so that
it will not cause build errors.

drivers/watchdog/via_wdt.c:256:1: warning: data definition has no type or storage class
drivers/watchdog/via_wdt.c:256:1: warning: type defaults to 'int' in declaration of 'module_pci_driver'
drivers/watchdog/via_wdt.c:256:1: warning: parameter names (without types) in function declaration

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-23 16:25:59 +02:00
Randy Dunlap 491d9e2a5f watchdog: ie6xx_wdt needs io.h
Fix build error by including <linux/io.h>:

drivers/watchdog/ie6xx_wdt.c:97:2: error: implicit declaration of function 'outb'
drivers/watchdog/ie6xx_wdt.c:133:2: error: implicit declaration of function 'outl'
drivers/watchdog/ie6xx_wdt.c:161:2: error: implicit declaration of function 'inb'
drivers/watchdog/ie6xx_wdt.c:199:3: error: implicit declaration of function 'inl'
drivers/watchdog/ie6xx_wdt.c:203:3: error: implicit declaration of function 'inw'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-23 16:25:33 +02:00
Randy Dunlap 744f6f4d3d watchdog: ie6xx_wdt.c: fix printk format warning
Fix printk format warning; use cast to u64 since resource_size_t can
be either u32 or u64.

drivers/watchdog/ie6xx_wdt.c:261:4: warning: format '%x' expects type 'unsigned int', but argument 3 has type 'resource_size_t'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-23 16:25:29 +02:00
Alexander Stein 101ce87b3b watchdog: Add watchdog driver for Intel Atom E6XX
Add driver for the watchdog timer built into the
Intel Atom E6XX (TunnelCreek) processor.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-23 16:25:13 +02:00
Diego Elio Pettenò 198ca01534 watchdog: it87_wdt: Add support for IT8728F watchdog.
This works the same way IT8721F works, but it supports WDT_PWROK
(checked on the datasheet).

Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.eu>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-23 16:24:43 +02:00
Michael Olbrich 7050bd5499 watchdog: i6300esb: don't depend on X86
i6300esb is on of the watchdogs QEMU can emulate. It is also available
when emulating ARM. The driver works without problems and is quite
useful to test userspace dealing with /dev/watchdog.

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-23 16:24:32 +02:00
Wim Van Sebroeck 5ce9c371c7 watchdog: Use module_pci_driver
This patch converts the PCI watchdog drivers so that they use the
module_pci_driver() macro. This makes the code smaller and simpler.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: Thomas Mingarelli <thomas.mingarelli@hp.com>
Cc: Marc Vertes <marc.vertes@sigfox.com>
2012-05-23 16:23:53 +02:00
Dave Mueller 8f90a3ae8f watchdog: sch311x_wdt.c: Remove RESGEN
The SCH311x chip contains 2 watchdogs. One is the watchdog programmable
by the runtime register at address 0x65-0x68, the other is the watchdog
inside the power on reset generator. This second watchdog has a fixed
timeout value of ~1.6 seconds and is configurable only by the RESGEN
register.

The BIOS normally takes care of the RESGEN watchdog and disables it (at
least) before the OS is booted.

Unfortunately the sch311x_wdt driver clears bit 0 of the RESGEN register
which has the effect that at the latest 1.6 seconds later, a POR is
triggered.

The attached patch fixes this problem by completely removing any
reference to the RESGEN watchdog from the sch311x_wdt driver.

Signed-off-by: Dave Mueller <d.mueller@elsoft.ch>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-23 16:17:51 +02:00
Wim Van Sebroeck 3016a552a8 watchdog: s3c2410-wdt: Use of_match_ptr().
Use of_match_ptr definition for the of_match_table.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
2012-05-23 16:17:14 +02:00
Roland Stigge 3ba3774b8c watchdog: Device tree support for pnx4008-wdt
This patch adds device tree support to pnx4008-wdt.c

Signed-off-by: Roland Stigge <stigge@antcom.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-23 16:16:55 +02:00
Julia Lawall ae21cc20a6 watchdog: ar7_wdt.c: use devm_request_and_ioremap
Combine request_region and ioremap into devm_request_and_ioremap.  This has
the effect of fixing a missing iounmap on the failure of clk_get.

This also introduces a call to clk_put and clears the vbus_clk variable in
the case of failure or device removal.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-23 16:16:43 +02:00
Rob Herring 065e823830 watchdog: remove ixp2000 driver
The platform is removed, so there are no users of this driver.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-23 16:16:28 +02:00
H Hartley Sweeten 62a9aebc5b watchdog: sp5100_tco.c: quiet sparse noise about using plain integer was NULL pointer
Pointers should not be compared to plain integers.
Quiets the sparse warning:
warning: Using plain integer as NULL pointer

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-23 16:16:21 +02:00
Linus Torvalds e8650a0823 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial updates from Jiri Kosina:
 "As usual, it's mostly typo fixes, redundant code elimination and some
  documentation updates."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (57 commits)
  edac, mips: don't change code that has been removed in edac/mips tree
  xtensa: Change mail addresses of Hannes Weiner and Oskar Schirmer
  lib: Change mail address of Oskar Schirmer
  net: Change mail address of Oskar Schirmer
  arm/m68k: Change mail address of Sebastian Hess
  i2c: Change mail address of Oskar Schirmer
  net: Fix tcp_build_and_update_options comment in struct tcp_sock
  atomic64_32.h: fix parameter naming mismatch
  Kconfig: replace "--- help ---" with "---help---"
  c2port: fix bogus Kconfig "default no"
  edac: Fix spelling errors.
  qla1280: Remove redundant NULL check before release_firmware() call
  remoteproc: remove redundant NULL check before release_firmware()
  qla2xxx: Remove redundant NULL check before release_firmware() call.
  aic94xx: Get rid of redundant NULL check before release_firmware() call
  tehuti: delete redundant NULL check before release_firmware()
  qlogic: get rid of a redundant test for NULL before call to release_firmware()
  bna: remove redundant NULL test before release_firmware()
  tg3: remove redundant NULL test before release_firmware() call
  typhoon: get rid of redundant conditional before all to release_firmware()
  ...
2012-05-22 19:22:50 -07:00
Linus Torvalds 5ec29e3149 Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core locking updates from Ingo Molnar:
 "This update:

   - extends and simplifies x86 NMI callback handling code to enhance
     and fix the HP hw-watchdog driver

   - simplifies the x86 NMI callback handling code to fix a kmemcheck
     bug.

   - enhances the hung-task debugger"

* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/nmi: Fix the type of the nmiaction.flags field
  x86/nmi: Fix page faults by nmiaction if kmemcheck is enabled
  x86/nmi: Add new NMI queues to deal with IO_CHK and SERR
  watchdog, hpwdt: Remove priority option for NMI callback
  hung task debugging: Inject NMI when hung and going to panic
2012-05-21 19:25:14 -07:00
John Crispin cdb8612147 watchdog: MIPS: lantiq: implement OF support and minor fixes
Add support for OF. We also apply the following small fixes
* reduce boiler plate by using devm_request_and_ioremap
* sane error path for the clock
* move LTQ_RST_CAUSE_WDTRST to a soc specific header file
* add a message to show that the driver loaded

Signed-off-by: John Crispin <blogic@openwrt.org>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Cc: linux-watchdog@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3810/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-21 14:31:54 +01:00
Arnd Bergmann 3c0dec5f58 Merge branch 'clk-next' of git://git.linaro.org/people/mturquette/linux into next/clock
* 'clk-next' of git://git.linaro.org/people/mturquette/linux:
  clk: Fix CLK_SET_RATE_GATE flag validation in clk_set_rate().
  clk: Provide dummy clk_unregister()
  ARM: Kirkwood: Replace clock gating
  ARM: Orion: Audio: Add clk/clkdev support
  ARM: Orion: PCIE: Add support for clk
  ARM: Orion: XOR: Add support for clk
  ARM: Orion: CESA: Add support for clk
  ARM: Orion: SDIO: Add support for clk.
  ARM: Orion: NAND: Add support for clk, if there is one.
  ARM: Orion: EHCI: Add support for enabling clocks
  ARM: Orion: SATA: Add per channel clk/clkdev support.
  ARM: Orion: UART: Get the clock rate via clk_get_rate().
  ARM: Orion: WDT: Add clk/clkdev support
  ARM: Orion: Eth: Add clk/clkdev support.
  ARM: Orion: SPI: Add clk/clkdev support.
  ARM: Orion: Add clocks using the generic clk infrastructure.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-05-16 16:35:25 +02:00
Arnd Bergmann 93c6d8927f Merge branch 'clk/mxs' of git://git.linaro.org/people/shawnguo/linux-2.6 into next/clock
Shawn Guo <shawn.guo@linaro.org> writes:

  mxs common clk porting for v3.5.  It depends on the following two branches.

  [1] git://git.linaro.org/people/mturquette/linux.git clk-next
  [2] http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-arm.git clkdev

  As the mxs device tree conversion will constantly touch clock files,
  to save the conflicts, the updated mxs/dt branch coming later will
  based on this pull-request.

* 'clk/mxs' of git://git.linaro.org/people/shawnguo/linux-2.6:
  ARM: mxs: remove now unused timer_clk argument from mxs_timer_init
  ARM: mxs: remove old clock support
  ARM: mxs: switch to common clk framework
  ARM: mxs: change the lookup name for fec phy clock
  ARM: mxs: request clock for timer
  clk: mxs: add clock support for imx28
  clk: mxs: add clock support for imx23
  clk: mxs: add mxs specific clocks

Includes an update to Linux 3.4-rc6

Conflicts:
	drivers/clk/Makefile

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-05-11 17:15:31 +02:00
Paul Mundt d42c97443d watchdog: shwdt: Use finer grained clock control.
The clk enable/disable pairs can be pushed down to start/stop rather than
probe/remove, along with the runtime PM callsites. This will allow us to
keep the block powered off until userspace comes along and decides to do
something with it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10 16:14:40 +09:00
Paul Mundt 8c013d964a watchdog: shwdt: Preliminary runtime PM support.
This plugs in some trivial runtime PM support in the probe/remove and
start/stop paths.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10 16:08:35 +09:00
Paul Mundt 9ea6404691 watchdog: shwdt: Basic clock framework support.
This plugs in basic clock framework support for the watchdog. As it's an
optional MSTP bit, we don't particularly care if a platform has provided
it or not, though a valid clock will need to be available for the more
complex overflow period calculations found on newer parts -- this will be
addressed later.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10 15:46:48 +09:00
Paul Mundt f9e2eae6c6 watchdog: shwdt: Trim down private data structure.
Now that we're using the generic watchdog core, kill off unused
elements from the private data structure.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10 15:20:18 +09:00
Paul Mundt f9fb360cb3 watchdog: shwdt: Migrate to per-device locking.
Presently we've been using global locking for everything. Push the
locking down to the per-device level in preparation for per-CPU
watchdogs.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10 15:15:08 +09:00
Paul Mundt 1950f499df watchdog: shwdt: Conversion to watchdog core.
Fairly straightforward conversion to utilize watchdog core support.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10 15:07:53 +09:00
Paul Mundt 4096812636 watchdog: shwdt: Migrate from reboot notifier to platform shutdown.
It's possible to do the same work via the platform driver shutdown
method, so wire that up and dump the reboot notifier.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10 14:21:15 +09:00
Aaron Sierra 887c8ec721 watchdog: Convert iTCO_wdt driver to mfd model
This patch converts the iTCO_wdt driver to use the multi-function device
driver model. It uses resources discovered by the lpc_ich driver, so that
it no longer does its own PCI scanning.

Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-05-09 17:20:09 +02:00
Andrew Lunn 4f04be62af ARM: Orion: WDT: Add clk/clkdev support
Remove tclk from platform data.  This makes the platform data
structure empty, so remove it.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2012-05-08 16:33:57 -07:00
Mingarelli, Thomas d08c9a33b4 hpwdt: Only BYTE reads/writes to WD Timer port 0x72
This patch is to correct the use of the iLO port 0x72 usage.
The port 0x72 is a byte size write/read and hpwdt is currently
writing a WORD.

Signed-off by: Thomas Mingarelli <thomas.mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-04-26 14:38:07 +02:00
Sascha Hauer 4e7b6c9a6b watchdog imx2: prepare clk before enabling it
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-04-25 17:03:42 +02:00
Don Zickus 553222f3e8 x86/nmi: Add new NMI queues to deal with IO_CHK and SERR
In discussions with Thomas Mingarelli about hpwdt, he explained
to me some issues they were some when using their virtual NMI
button to test the hpwdt driver.

It turns out the virtual NMI button used on HP's machines do no
send unknown NMIs but instead send IO_CHK NMIs.  The way the
kernel code is written, the hpwdt driver can not register itself
against that type of NMI and therefore can not successfully
capture system information before panic'ing.

To solve this I created two new NMI queues to allow driver to
register against the IO_CHK and SERR NMIs.  Or in the hpwdt all
three (if you include unknown NMIs too).

The change is straightforward and just mimics what the unknown
NMI does.

Reported-and-tested-by: Thomas Mingarelli <thomas.mingarelli@hp.com>
Signed-off-by: Don Zickus <dzickus@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/1333051877-15755-3-git-send-email-dzickus@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-04-25 12:43:34 +02:00
Don Zickus 09ee101436 watchdog, hpwdt: Remove priority option for NMI callback
The NMI_UNKNOWN bucket only allows for one function to register
to it. The reason for that is because only functions which can
not determine if the NMI belongs to them or not should register
and would like to assume/swallow any NMI they see.

As a result it doesn't make sense to let more than one function
like this register.  In fact, letting a second function fail
allows us to know that more than one function is going to
swallow NMIs on the current system. This is better than silently
being ignored.

Therefore hpwdt's priority mechanism doesn't make sense any
more.  They will be always first on the NMI_UNKNOWN queue, if
they register.

Removing this parameter cleans up the code and simplifies things
for the next patch which changes how nmis are registered.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Cc: Thomas Mingarelli <thomas.mingarelli@hp.com>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/1333051877-15755-2-git-send-email-dzickus@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-04-25 12:43:33 +02:00
Masanari Iida 6b2aac42b2 Fix typo in various Kconfig file
Correct spelling typo in various Kconfig file.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-04-16 14:40:08 +02:00
Linus Torvalds 820d41cf0c ARM: cleanups of io includes
Rob Herring has done a sweeping change cleaning up all of the mach/io.h includes,
 moving some of the oft-repeated macros to a common location and removing a bunch of
 boiler plate. This is another step closer to a common zImage for multiple platforms.
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Merge tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull "ARM: cleanups of io includes" from Olof Johansson:
 "Rob Herring has done a sweeping change cleaning up all of the
  mach/io.h includes, moving some of the oft-repeated macros to a common
  location and removing a bunch of boiler plate.  This is another step
  closer to a common zImage for multiple platforms."

Fix up various fairly trivial conflicts (<mach/io.h> removal vs changes
around it, tegra localtimer.o is *still* gone, yadda-yadda).

* tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits)
  ARM: tegra: Include assembler.h in sleep.S to fix build break
  ARM: pxa: use common IOMEM definition
  ARM: dma-mapping: convert ARCH_HAS_DMA_SET_COHERENT_MASK to kconfig symbol
  ARM: __io abuse cleanup
  ARM: create a common IOMEM definition
  ARM: iop13xx: fix missing declaration of iop13xx_init_early
  ARM: fix ioremap/iounmap for !CONFIG_MMU
  ARM: kill off __mem_pci
  ARM: remove bunch of now unused mach/io.h files
  ARM: make mach/io.h include optional
  ARM: clps711x: remove unneeded include of mach/io.h
  ARM: dove: add explicit include of dove.h to addr-map.c
  ARM: at91: add explicit include of hardware.h to uncompressor
  ARM: ep93xx: clean-up mach/io.h
  ARM: tegra: clean-up mach/io.h
  ARM: orion5x: clean-up mach/io.h
  ARM: davinci: remove unneeded mach/io.h include
  [media] davinci: remove includes of mach/io.h
  ARM: OMAP: Remove remaining includes for mach/io.h
  ARM: msm: clean-up mach/io.h
  ...
2012-03-29 18:02:10 -07:00
Linus Torvalds 0195c00244 Disintegrate and delete asm/system.h
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Merge tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system

Pull "Disintegrate and delete asm/system.h" from David Howells:
 "Here are a bunch of patches to disintegrate asm/system.h into a set of
  separate bits to relieve the problem of circular inclusion
  dependencies.

  I've built all the working defconfigs from all the arches that I can
  and made sure that they don't break.

  The reason for these patches is that I recently encountered a circular
  dependency problem that came about when I produced some patches to
  optimise get_order() by rewriting it to use ilog2().

  This uses bitops - and on the SH arch asm/bitops.h drags in
  asm-generic/get_order.h by a circuituous route involving asm/system.h.

  The main difficulty seems to be asm/system.h.  It holds a number of
  low level bits with no/few dependencies that are commonly used (eg.
  memory barriers) and a number of bits with more dependencies that
  aren't used in many places (eg.  switch_to()).

  These patches break asm/system.h up into the following core pieces:

    (1) asm/barrier.h

        Move memory barriers here.  This already done for MIPS and Alpha.

    (2) asm/switch_to.h

        Move switch_to() and related stuff here.

    (3) asm/exec.h

        Move arch_align_stack() here.  Other process execution related bits
        could perhaps go here from asm/processor.h.

    (4) asm/cmpxchg.h

        Move xchg() and cmpxchg() here as they're full word atomic ops and
        frequently used by atomic_xchg() and atomic_cmpxchg().

    (5) asm/bug.h

        Move die() and related bits.

    (6) asm/auxvec.h

        Move AT_VECTOR_SIZE_ARCH here.

  Other arch headers are created as needed on a per-arch basis."

Fixed up some conflicts from other header file cleanups and moving code
around that has happened in the meantime, so David's testing is somewhat
weakened by that.  We'll find out anything that got broken and fix it..

* tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system: (38 commits)
  Delete all instances of asm/system.h
  Remove all #inclusions of asm/system.h
  Add #includes needed to permit the removal of asm/system.h
  Move all declarations of free_initmem() to linux/mm.h
  Disintegrate asm/system.h for OpenRISC
  Split arch_align_stack() out from asm-generic/system.h
  Split the switch_to() wrapper out of asm-generic/system.h
  Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h
  Create asm-generic/barrier.h
  Make asm-generic/cmpxchg.h #include asm-generic/cmpxchg-local.h
  Disintegrate asm/system.h for Xtensa
  Disintegrate asm/system.h for Unicore32 [based on ver , changed by gxt]
  Disintegrate asm/system.h for Tile
  Disintegrate asm/system.h for Sparc
  Disintegrate asm/system.h for SH
  Disintegrate asm/system.h for Score
  Disintegrate asm/system.h for S390
  Disintegrate asm/system.h for PowerPC
  Disintegrate asm/system.h for PA-RISC
  Disintegrate asm/system.h for MN10300
  ...
2012-03-28 15:58:21 -07:00
Linus Torvalds 750f77064a Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
 - Removal of the Documentation/watchdog/00-INDEX file
 - Fix boot status reporting for imx2_wdt
 - clean-up sp805_wdt, pnx4008_wdt and mpcore_wdt
 - convert printk in watchdog drivers to pr_ functions
 - change nowayout module parameter to bool for every watchdog device
 - conversion of jz4740_wdt, pnx4008_wdt, max63xx_wdt, softdog,
   ep93xx_wdt, coh901327 and txx9wdt to new watchdog API
 - Add support for the WDIOC_GETTIMELEFT ioctl call to the new watchdog
   API
 - Change the new watchdog API so that the driver updates the timeout
   value
 - two fixes for the xen_wdt driver

Fix up conflicts in ep93xx driver due to the same patches being merged
through separate branches.

* git://www.linux-watchdog.org/linux-watchdog: (33 commits)
  watchdog: txx9wdt: fix timeout
  watchdog: Convert txx9wdt driver to watchdog framework
  watchdog: coh901327_wdt.c: fix timeout
  watchdog: coh901327: convert to use watchdog core
  watchdog: Add support for WDIOC_GETTIMELEFT IOCTL in watchdog core
  watchdog: ep93xx_wdt: timeout is an unsigned int value.
  watchdog: ep93xx_wdt: Fix timeout after conversion to watchdog core
  watchdog: Convert ep93xx driver to watchdog core
  watchdog: sp805: Use devm routines
  watchdog: sp805: replace readl/writel with lighter _relaxed variants
  watchdog: sp805: Fix documentation style comment
  watchdog: mpcore_wdt: Allow platform_get_irq() to fail
  watchdog: mpcore_wdt: Use devm routines
  watchdog: mpcore_wdt: Rename dev to pdev for pointing to struct platform_device
  watchdog: xen: don't clear is_active when xen_wdt_stop() failed
  watchdog: xen: don't unconditionally enable the watchdog during resume
  watchdog: fix compiler error for missing parenthesis
  watchdog: ep93xx_wdt.c: fix platform probe
  watchdog: ep93xx: Convert the watchdog driver into a platform device.
  watchdog: fix set_timeout operations
  ...
2012-03-28 13:03:26 -07:00
Linus Torvalds 09893ee845 ARM: More device tree support updates
This branch contains a number of updates for device tree support on
 several ARM platforms, in particular:
 
 * AT91 continues the device tree conversion adding support for a number of
   on-chip drivers and other functionality
 * ux500 adds probing of some of the core SoC blocks through device tree
 * Initial device tree support for ST SPEAr600 platforms
 * kirkwood continues the conversion to device-tree probing
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Merge tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull "ARM: More device tree support updates" from Olof Johansson:
 "This branch contains a number of updates for device tree support on
  several ARM platforms, in particular:

   * AT91 continues the device tree conversion adding support for a
     number of on-chip drivers and other functionality
   * ux500 adds probing of some of the core SoC blocks through device
     tree
   * Initial device tree support for ST SPEAr600 platforms
   * kirkwood continues the conversion to device-tree probing"

Manually merge arch/arm/mach-ux500/Kconfig due to MACH_U8500 rename, and
drivers/usb/gadget/at91_udc.c due to header file include cleanups.

Also do an "evil merge" for the MACH_U8500 config option rename that the
affected RMI4 touchscreen driver in staging.  It's called MACH_MOP500
now, and it was missed during previous merges.

* tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
  ARM: SPEAr600: Add device-tree support to SPEAr600 boards
  ARM: ux500: Provide local timer support for Device Tree
  ARM: ux500: Enable PL022 SSP Controller in Device Tree
  ARM: ux500: Enable PL310 Level 2 Cache Controller in Device Tree
  ARM: ux500: Enable PL011 AMBA UART Controller for Device Tree
  ARM: ux500: Enable Cortex-A9 GIC (Generic Interrupt Controller) in Device Tree
  ARM: ux500: db8500: list most devices in the snowball device tree
  ARM: ux500: split dts file for snowball into generic part
  ARM: ux500: combine the board init functions for DT boot
  ARM: ux500: Initial Device Tree support for Snowball
  ARM: ux500: CONFIG: Enable Device Tree support for future endeavours
  ARM: kirkwood: use devicetree for rtc-mv
  ARM: kirkwood: rtc-mv devicetree bindings
  ARM: kirkwood: fdt: define uart[01] as disabled, enable uart0
  ARM: kirkwood: fdt: facilitate new boards during fdt migration
  ARM: kirkwood: fdt: absorb kirkwood_init()
  ARM: kirkwood: fdt: use mrvl ticker symbol
  ARM: orion: wdt: use resource vice direct access
  ARM: Kirkwood: Remove tclk from kirkwood_asoc_platform_data.
  ARM: orion: spi: remove enable_clock_fix which is not used
  ...
2012-03-28 12:34:33 -07:00
David Howells 9ffc93f203 Remove all #inclusions of asm/system.h
Remove all #inclusions of asm/system.h preparatory to splitting and killing
it.  Performed with the following command:

perl -p -i -e 's!^#\s*include\s*<asm/system[.]h>.*\n!!' `grep -Irl '^#\s*include\s*<asm/system[.]h>' *`

Signed-off-by: David Howells <dhowells@redhat.com>
2012-03-28 18:30:03 +01:00
David Howells 9f97da78bf Disintegrate asm/system.h for ARM
Disintegrate asm/system.h for ARM.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Russell King <linux@arm.linux.org.uk>
cc: linux-arm-kernel@lists.infradead.org
2012-03-28 18:30:01 +01:00
Linus Torvalds 66f03c614c ARM: device tree work
Most of these patches convert code from using static platform data to
 describing the hardware in the device tree. This is only the first
 half of the changes for v3.4 because a lot of patches for this topic
 came in the last week before the merge window.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull "ARM: device tree work" from Arnd Bergmann:
 "Most of these patches convert code from using static platform data to
  describing the hardware in the device tree.  This is only the first
  half of the changes for v3.4 because a lot of patches for this topic
  came in the last week before the merge window.

  Signed-off-by: Arnd Bergmann <arnd@arndb.de>"

Fix up trivial conflicts in arch/arm/mach-vexpress/{Kconfig,core.h}

* tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (86 commits)
  Document: devicetree: add OF documents for arch-mmp
  ARM: dts: append DTS file of pxa168
  ARM: mmp: append OF support on pxa168
  ARM: mmp: enable rtc clk in pxa168
  i2c: pxa: add OF support
  serial: pxa: add OF support
  arm/dts: mt_ventoux: very basic support for TeeJet Mt.Ventoux board
  ARM: OMAP2+: Remove extra ifdefs for board-generic
  ARM: OMAP2+: Fix build error when only ARCH_OMAP2/3 or 4 is selected
  ASoC: DT: Add digital microphone binding to PAZ00 board.
  ARM: dt: Add ARM PMU to tegra*.dtsi
  ARM: at91: at91sam9x5cm/dt: add leds support
  ARM: at91: usb_a9g20/dt: add gpio-keys support
  ARM: at91: at91sam9m10g45ek/dt: add gpio-keys support
  ARM: at91: at91sam9m10g45ek/dt: add leds support
  ARM: at91: usb_a9g20/dt: add leds support
  ARM: at91/pio: add new PIO3 features
  ARM: at91: add sam9_smc.o to at91sam9x5 build
  ARM: at91/tc/clocksource: Add 32 bit variant to Timer Counter
  ARM: at91/tc: add device tree support to atmel_tclib
  ...
2012-03-27 16:47:35 -07:00
Linus Torvalds d61b7a572b ARM: global cleanups
Quite a bit of code gets removed, and some stuff moved around, mostly
 the old samsung s3c24xx stuff. There should be no functional changes
 in this series otherwise. Some cleanups have dependencies on other
 arm-soc branches and will be sent in the second round.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull "ARM: global cleanups" from Arnd Bergmann:
 "Quite a bit of code gets removed, and some stuff moved around, mostly
  the old samsung s3c24xx stuff.  There should be no functional changes
  in this series otherwise.  Some cleanups have dependencies on other
  arm-soc branches and will be sent in the second round.

  Signed-off-by: Arnd Bergmann <arnd@arndb.de>"

Fixed up trivial conflicts mainly due to #include's being changes on
both sides.

* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (121 commits)
  ep93xx: Remove unnecessary includes of ep93xx-regs.h
  ep93xx: Move EP93XX_SYSCON defines to SoC private header
  ep93xx: Move crunch code to mach-ep93xx directory
  ep93xx: Make syscon access functions private to SoC
  ep93xx: Configure GPIO ports in core code
  ep93xx: Move peripheral defines to local SoC header
  ep93xx: Convert the watchdog driver into a platform device.
  ep93xx: Use ioremap for backlight driver
  ep93xx: Move GPIO defines to gpio-ep93xx.h
  ep93xx: Don't use system controller defines in audio drivers
  ep93xx: Move PHYS_BASE defines to local SoC header file
  ARM: EXYNOS: Add clock register addresses for EXYNOS4X12 bus devfreq driver
  ARM: EXYNOS: add clock registers for exynos4x12-cpufreq
  PM / devfreq: update the name of EXYNOS clock registers that were omitted
  PM / devfreq: update the name of EXYNOS clock register
  ARM: EXYNOS: change the prefix S5P_ to EXYNOS4_ for clock
  ARM: EXYNOS: use static declaration on regarding clock
  ARM: EXYNOS: replace clock.c for other new EXYNOS SoCs
  ARM: OMAP2+: Fix build error after merge
  ARM: S3C24XX: remove call to s3c24xx_setup_clocks
  ...
2012-03-27 16:03:32 -07:00
Wim Van Sebroeck b92c803ec6 watchdog: txx9wdt: fix timeout
timeout should be an unsigned int.
Set the timeout value properly in the watchdog_device struct so that
we don't get an faulty values for the WDIOC_GETTIMEOUT ioctl call.
Add check to see that timeout is a valid parameter after it is loaded
as a module.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
2012-03-27 20:16:13 +02:00
Axel Lin d624584238 watchdog: Convert txx9wdt driver to watchdog framework
This patch converts txx9wdt driver to watchdog framework.
Also use devm_* APIs to save a few error handling code.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:16:07 +02:00
Wim Van Sebroeck dddbc6a051 watchdog: coh901327_wdt.c: fix timeout
Set the timeout value properly so that we don't get faulty values
for the WDIOC_GETTIMEOUT iotcl. 'margin' should be an unsigned int.
Also add a check to see if margin is a valid parameter after it is
loaded as a module.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
2012-03-27 20:15:57 +02:00
Linus Walleij 15b25701b2 watchdog: coh901327: convert to use watchdog core
This converts the COH901327 watchdog to use the watchdog core.
I followed Wolframs document, looked at some other drivers and
tested it on the U300.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:15:47 +02:00
Viresh Kumar fd7b673c92 watchdog: Add support for WDIOC_GETTIMELEFT IOCTL in watchdog core
This patch adds support for WDIOC_GETTIMELEFT IOCTL in watchdog core. So, there
is another function pointer added to struct watchdog_ops, which can be passed by
drivers to support this IOCTL.

Related documentation is updated too.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:15:37 +02:00
Wim Van Sebroeck 2ca1606359 watchdog: ep93xx_wdt: timeout is an unsigned int value.
the timeout is a positive thus unsigned int value.
Also re-add the comment about the actual heartbeat.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:15:24 +02:00
Mika Westerberg 59dcf1eb1a watchdog: ep93xx_wdt: Fix timeout after conversion to watchdog core
After the conversion of this driver to the watchdog core, I noticed that we
miss setting the initial timeout of the wdt device.
This results in a failure of the WDIOC_GETTIMEOUT ioctl call.

Reviewed-by: Mika Westerberg <mika.westerberg@iki.fi>
Tested-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:15:17 +02:00
H Hartley Sweeten e12a679dde watchdog: Convert ep93xx driver to watchdog core
Convert the ep93xx_wdt driver to the watchdog framework API.

Also, use the dev_<fmt> functions instead of pr_<fmt> for logging.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ryan Mallon <rmallon@gmail.com>
Cc: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:15:02 +02:00
Viresh Kumar fb35a5ad5b watchdog: sp805: Use devm routines
sp805 driver currently uses normal kzalloc, ioremap, etc routines. This patch
replaces these routines with devm_kzalloc and devm_request_mem_region etc, so
that we don't need to handle freeing of resources for error cases and module
removal routine.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:14:34 +02:00
Viresh Kumar d2e8919bcf watchdog: sp805: replace readl/writel with lighter _relaxed variants
readl/writel versions for ARM contain memory barrier instruction for
synchronizing DMA buffers.  These are not required at least on this
module.  So use lighter _relaxed variants.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:14:31 +02:00
Viresh Kumar bfae14b679 watchdog: sp805: Fix documentation style comment
@ was missing before variables names, in their description. Also adev is
mentioned as dev in comment. Fix both these issues.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:14:28 +02:00
Viresh Kumar 60a1aa50b2 watchdog: mpcore_wdt: Allow platform_get_irq() to fail
irq is not necessary for mpcore wdt. Don't return error if it is not passed. But
if it is passed, then request_irq must pass.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:14:20 +02:00
Viresh Kumar 75f5a536c0 watchdog: mpcore_wdt: Use devm routines
mpcore_wdt driver currently uses normal kzalloc, request_irq, ioremap, etc
routines. This patch replaces these routines with devm_kzalloc and
devm_request_mem_region etc, so that we don't need to handle freeing of
resources for error cases and module removal routine.

Also, request_irq is moved before registering misc device, so that we are ready
for irq as soon as device is registered.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:14:15 +02:00
Viresh Kumar aa065770f5 watchdog: mpcore_wdt: Rename dev to pdev for pointing to struct platform_device
Pointer to struct platform_device is named as dev, which makes it confusing when
we write statements like dev->dev to access struct device within it.

This patch renames such names to pdev.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:14:11 +02:00
Jan Beulich 38c484fa13 watchdog: xen: don't clear is_active when xen_wdt_stop() failed
xen_wdt_release() shouldn't clear is_active even when the watchdog
didn't get stopped (which by itself shouldn't happen, but let's return
a proper error in this case rather than adding a BUG() upon hypercall
failure).

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:13:55 +02:00
Jan Beulich 83448bf786 watchdog: xen: don't unconditionally enable the watchdog during resume
This was found to be a problem particularly after guest migration.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reported-by: Wouter de Geus <benv-xensource.com@junerules.com>
Reported-by: Ian Campbell <Ian.Campbell@citrix.com>
Tested-by: Wouter de Geus <benv-xensource.com@junerules.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:13:43 +02:00
Jaehoon Chung ccd4144dd4 watchdog: fix compiler error for missing parenthesis
Joe's patch(watchdog: Use pr_<fmt> and pr_<level>) missed parenthesis in s3c2410_wdt.c.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:09:13 +02:00
Wim Van Sebroeck 697b41e4d4 watchdog: ep93xx_wdt.c: fix platform probe
Fix the device/driver init so that the misc_register
happens as last (since this opens userspace access to
the device).

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:08:48 +02:00
H Hartley Sweeten 3e0113a896 watchdog: ep93xx: Convert the watchdog driver into a platform device.
Convert the ep93xx watchdog driver into a platform device and
remove it's dependency on <mach/hardware.h>.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ryan Mallon <rmallon@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Reviewed-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-03-27 20:08:34 +02:00
Wim Van Sebroeck 0197c1c49e watchdog: fix set_timeout operations
Since we changed the behaviour of the set_timeout operation in the
watchdog API, we need to change the allready converted drivers so
that they update the timeout field at the end of the set_timeout
operation.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:08:09 +02:00
Hans de Goede b10f7c12e0 watchdog: watchdog_dev: Let the driver update the timeout field on set_timeout success
When a set_timeout operation succeeds this does not necessarily mean that
the exact timeout requested has been achieved, because the watchdog does not
necessarily have a 1 second resolution. So rather then have the core set
the timeout member of the watchdog_device struct to the exact requested
value, instead the driver should set it to the actually achieved timeout value.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:07:43 +02:00
Alan Cox a5132cafc0 watchdog: softdog: convert to watchdog core
Convert softdog.c to the new watchdog API.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:07:21 +02:00
Axel Lin a0f3683365 watchdog: Convert max63xx_wdt driver to watchdog framework
This patch converts max63xx_wdt driver to watchdog framework.
Also use devm_* APIs to save a few error handling code.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:06:59 +02:00
Wolfram Sang 6b1e83869d watchdog: pnx4008: convert driver to use the watchdog framework
Make this driver a user of the watchdog framework and remove parts now handled
by the core. Tested on a custom lpc32xx-board.

[wim@iguana.be: Added set_timeout operation]
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:06:37 +02:00
Axel Lin 2e51d90f4d watchdog: Convert wm8350_wdt driver to watchdog core
This patch converts wm8350_wdt driver to use watchdog core APIs.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:06:22 +02:00
Axel Lin 85f6df1492 watchdog: Convert jz4740_wdt driver to watchdog core
This patch converts jz4740_wdt driver to use watchdog core APIs.
Also use devm_* APIs to save a few error handling code.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:06:16 +02:00
Wim Van Sebroeck 86a1e1896c watchdog: nowayout is bool
nowayout is actually a boolean value.
So make it bool for all watchdog device drivers.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:06:02 +02:00
Joe Perches 27c766aaac watchdog: Use pr_<fmt> and pr_<level>
Use the current logging styles.

Make sure all output has a prefix.
Add missing newlines.
Remove now unnecessary PFX, NAME, and miscellaneous other #defines.
Coalesce formats.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 19:59:26 +02:00
Wolfram Sang 7cbc353540 watchdog: pnx4008: don't use __raw_-accessors
__raw_readl/__raw_writel are not meant for drivers [1].

[1] http://thread.gmane.org/gmane.linux.ports.arm.kernel/117626

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 19:59:09 +02:00
Wolfram Sang 19f505f09c watchdog: pnx4008: cleanup resource handling using managed devices
The resource handling in this driver was flaky: IO_ADDRESS instead of
ioremap (and no unmapping), an unneeded static resource, no central exit
path for error cases. Fix this by converting the driver to use managed
resources. Also use dev_*-messages instead of pr_* while we are here.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 19:59:03 +02:00
Viresh Kumar 16ac4abe0d watchdog: sp805_wdt: add pm callbacks to support standby/S2R/hibernation
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 19:58:45 +02:00
Oskar Schirmer 474ef12100 watchdog: make imx2_wdt report boot status correctly
Ioctl WDIOC_GETBOOTSTATUS is supposed to return some information
on why the system did (re)boot recently, value WDIOF_CARDRESET
being used to indicate watchdog induced reboot.

Up to now, imx2_wdt did not provide a value here, always returning
zero to indicate normal boot.

Do evaluate the IMX Watchdog Reset Status Register and
produce WDIOF_CARDRESET with WDIOC_GETBOOTSTATUS in case
of a watchdog induced reset.

Signed-off-by: Oskar Schirmer <oskar@scara.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 19:58:30 +02:00
Rob Herring 23019a733b ARM: pxa: use common IOMEM definition
pxa was missed in the moving of IOMEM to a common definition, so lots of
IOMEM redefined warnings were introduced. So remove pxa IOMEM definition
and fix all the fallout.

Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Haojian Zhuang <haojian.zhuang@marvell.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: rtc-linux@googlegroups.com
Cc: alsa-devel@alsa-project.org
2012-03-25 14:36:31 -05:00
Arnd Bergmann 7d1206bc28 Merge branch 'kirkwood/dt' into next/dt2
This was part of the for-next branch earlier but for some reasons
a rebuild of the tree missed it, so I'm putting it back in now.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-03-24 19:16:04 +00:00
Linus Torvalds 0d19eac120 Merge branch 'amba' of git://git.linaro.org/people/rmk/linux-arm
Pull  ARM updates from Russell King:
 "Further ARM AMBA primecell updates which aren't included directly in
  the previous commit.  I wanted to keep these separate as they're
  touching stuff outside arch/arm/."

* 'amba' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7362/1: AMBA: Add module_amba_driver() helper macro for amba_driver
  ARM: 7335/1: mach-u300: do away with MMC config files
  ARM: 7280/1: mmc: mmci: Cache MMCICLOCK and MMCIPOWER register
  ARM: 7309/1: realview: fix unconnected interrupts on EB11MP
  ARM: 7230/1: mmc: mmci: Fix PIO read for small SDIO packets
  ARM: 7227/1: mmc: mmci: Prepare for SDIO before setting up DMA job
  ARM: 7223/1: mmc: mmci: Fixup use of runtime PM and use autosuspend
  ARM: 7221/1: mmc: mmci: Change from using legacy suspend
  ARM: 7219/1: mmc: mmci: Change vdd_handler to a generic ios_handler
  ARM: 7218/1: mmc: mmci: Provide option to configure bus signal direction
  ARM: 7217/1: mmc: mmci: Put power register deviations in variant data
  ARM: 7216/1: mmc: mmci: Do not release spinlock in request_end
  ARM: 7215/1: mmc: mmci: Increase max_segs from 16 to 128
2012-03-23 17:36:29 -07:00
Linus Torvalds 5375871d43 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc merge from Benjamin Herrenschmidt:
 "Here's the powerpc batch for this merge window.  It is going to be a
  bit more nasty than usual as in touching things outside of
  arch/powerpc mostly due to the big iSeriesectomy :-) We finally got
  rid of the bugger (legacy iSeries support) which was a PITA to
  maintain and that nobody really used anymore.

  Here are some of the highlights:

   - Legacy iSeries is gone.  Thanks Stephen ! There's still some bits
     and pieces remaining if you do a grep -ir series arch/powerpc but
     they are harmless and will be removed in the next few weeks
     hopefully.

   - The 'fadump' functionality (Firmware Assisted Dump) replaces the
     previous (equivalent) "pHyp assisted dump"...  it's a rewrite of a
     mechanism to get the hypervisor to do crash dumps on pSeries, the
     new implementation hopefully being much more reliable.  Thanks
     Mahesh Salgaonkar.

   - The "EEH" code (pSeries PCI error handling & recovery) got a big
     spring cleaning, motivated by the need to be able to implement a
     new backend for it on top of some new different type of firwmare.

     The work isn't complete yet, but a good chunk of the cleanups is
     there.  Note that this adds a field to struct device_node which is
     not very nice and which Grant objects to.  I will have a patch soon
     that moves that to a powerpc private data structure (hopefully
     before rc1) and we'll improve things further later on (hopefully
     getting rid of the need for that pointer completely).  Thanks Gavin
     Shan.

   - I dug into our exception & interrupt handling code to improve the
     way we do lazy interrupt handling (and make it work properly with
     "edge" triggered interrupt sources), and while at it found & fixed
     a wagon of issues in those areas, including adding support for page
     fault retry & fatal signals on page faults.

   - Your usual random batch of small fixes & updates, including a bunch
     of new embedded boards, both Freescale and APM based ones, etc..."

I fixed up some conflicts with the generalized irq-domain changes from
Grant Likely, hopefully correctly.

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (141 commits)
  powerpc/ps3: Do not adjust the wrapper load address
  powerpc: Remove the rest of the legacy iSeries include files
  powerpc: Remove the remaining CONFIG_PPC_ISERIES pieces
  init: Remove CONFIG_PPC_ISERIES
  powerpc: Remove FW_FEATURE ISERIES from arch code
  tty/hvc_vio: FW_FEATURE_ISERIES is no longer selectable
  powerpc/spufs: Fix double unlocks
  powerpc/5200: convert mpc5200 to use of_platform_populate()
  powerpc/mpc5200: add options to mpc5200_defconfig
  powerpc/mpc52xx: add a4m072 board support
  powerpc/mpc5200: update mpc5200_defconfig to fit for charon board
  Documentation/powerpc/mpc52xx.txt: Checkpatch cleanup
  powerpc/44x: Add additional device support for APM821xx SoC and Bluestone board
  powerpc/44x: Add support PCI-E for APM821xx SoC and Bluestone board
  MAINTAINERS: Update PowerPC 4xx tree
  powerpc/44x: The bug fixed support for APM821xx SoC and Bluestone board
  powerpc: document the FSL MPIC message register binding
  powerpc: add support for MPIC message register API
  powerpc/fsl: Added aliased MSIIR register address to MSI node in dts
  powerpc/85xx: mpc8548cds - add 36-bit dts
  ...
2012-03-21 18:55:10 -07:00
viresh kumar 9e5ed094c8 ARM: 7362/1: AMBA: Add module_amba_driver() helper macro for amba_driver
For simple modules that contain a single amba_driver without any
additional setup code then ends up being a block of duplicated
boilerplate. This patch adds a new macro, module_amba_driver(),
which replaces the module_init()/module_exit() registrations with
template functions.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-16 23:32:35 +00:00
Arnd Bergmann c899445f97 Merge branch 'kirkwood_dt_for_3.4_v3' of git://git.infradead.org/users/jcooper/linux-kirkwood into kirkwood/dt
* 'kirkwood_dt_for_3.4_v3' of git://git.infradead.org/users/jcooper/linux-kirkwood:
  ARM: kirkwood: use devicetree for rtc-mv
  ARM: kirkwood: rtc-mv devicetree bindings
  ARM: kirkwood: fdt: define uart[01] as disabled, enable uart0
  ARM: kirkwood: fdt: facilitate new boards during fdt migration
  ARM: kirkwood: fdt: absorb kirkwood_init()
  ARM: kirkwood: fdt: use mrvl ticker symbol
  ARM: orion: wdt: use resource vice direct access
  ARM: Kirkwood: Remove tclk from kirkwood_asoc_platform_data.
  ARM: orion: spi: remove enable_clock_fix which is not used
2012-03-16 20:13:43 +00:00
Martyn Welch 330bbf4854 powerpc: Add GE FPGA config option
This patch adds the GE_FPGA configuration option. This is being carried
out as ground work to allow the PIC and GPIO drivers to be move from the
powerpc 86xx platform directory to more general locations to allow them to
be used on non-86xx boards and to reduce churn when further boards using
these drivers are added.

Signed-off-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-03-16 11:08:05 -05:00
Jason Cooper a855a7ced4 ARM: orion: wdt: use resource vice direct access
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-03-16 04:28:41 +00:00
Arnd Bergmann f4e2467bad Merge branch 'ep93xx-for-arm-soc' of git://github.com/RyanMallon/linux-2.6 into next/cleanup
* 'ep93xx-for-arm-soc' of git://github.com/RyanMallon/linux-2.6:
  ep93xx: Remove unnecessary includes of ep93xx-regs.h
  ep93xx: Move EP93XX_SYSCON defines to SoC private header
  ep93xx: Move crunch code to mach-ep93xx directory
  ep93xx: Make syscon access functions private to SoC
  ep93xx: Configure GPIO ports in core code
  ep93xx: Move peripheral defines to local SoC header
  ep93xx: Convert the watchdog driver into a platform device.
  ep93xx: Use ioremap for backlight driver
  ep93xx: Move GPIO defines to gpio-ep93xx.h
  ep93xx: Don't use system controller defines in audio drivers
  ep93xx: Move PHYS_BASE defines to local SoC header file

(update to v3.3-rc7)

Conflicts:
	arch/arm/mach-s3c2440/common.h
2012-03-15 15:20:07 +00:00
H Hartley Sweeten 73303d1292 ep93xx: Convert the watchdog driver into a platform device.
Convert the ep93xx watchdog driver into a platform device and
remove it's dependency on <mach/hardware.h>.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ryan Mallon <rmallon@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Reviewed-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-03-14 11:41:11 +11:00
Olof Johansson e3643b77de Merge branch 'next/cleanup-exynos-clock' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup
* 'next/cleanup-exynos-clock' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: EXYNOS: Add clock register addresses for EXYNOS4X12 bus devfreq driver
  ARM: EXYNOS: add clock registers for exynos4x12-cpufreq
  PM / devfreq: update the name of EXYNOS clock registers that were omitted
  PM / devfreq: update the name of EXYNOS clock register
  ARM: EXYNOS: change the prefix S5P_ to EXYNOS4_ for clock
  ARM: EXYNOS: use static declaration on regarding clock
  ARM: EXYNOS: replace clock.c for other new EXYNOS SoCs
  (includes an update to v3.3-rc6)
2012-03-13 16:08:06 -07:00
Olof Johansson a58f67e70a Merge branch 'dt' of git://github.com/hzhuang1/linux into next/dt
* 'dt' of git://github.com/hzhuang1/linux: (6 commits)
  Document: devicetree: add OF documents for arch-mmp
  ARM: dts: append DTS file of pxa168
  ARM: mmp: append OF support on pxa168
  ARM: mmp: enable rtc clk in pxa168
  i2c: pxa: add OF support
  serial: pxa: add OF support

  (plus update to v3.3-rc6)
2012-03-08 09:27:07 -08:00
Kukjin Kim 880bcd4a83 Merge branch 'topic/cleanup-s3c24xx' into next/cleanup-s3c24xx
Conflicts:
	arch/arm/mach-s3c24xx/include/mach/system.h
2012-03-07 01:36:33 -08:00
Kukjin Kim b130d5c295 ARM: S3C24XX: change the ARCH_S3C2410 to ARCH_S3C24XX
This patch changes the ARCH name to "ARCH_S3C24XX" for Samsung
S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443,
and S3C2450 SoCs so that we can merge the mach-xxx directories
and plat-s3c24xx dir. to just one mach-s3c24xx for them.

I think this should be sent to upstream via samsung tree because
this touches many samsung stuff.

Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Chris Ball <cjb@laptop.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
[for the gadget part:]
Acked-by: Felipe Balbi <balbi@ti.com>
[for the framebuffer (video) part:]
Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
[For the watchdog-part:]
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: Liam Girdwood <lrg@ti.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-03 07:44:51 +09:00
Dmitry Artamonow 741b9c7da1 watchdog: fix GETTIMEOUT ioctl in booke_wdt
Commit dcfb748422 ([WATCHDOG] fix book E watchdog to take
WDIOC_SETTIMEOUT arg in seconds) fixed SETTIMEOUT ioctl
to use seconds as a parameter instead of some hardware-specific
"period", but missed to apply similar changes to GETTIMEOUT,
so it still returns "period" value. Let's fix it!
Also, while at it, make SETTIMEOUT ioctl return real timeout
value as it should do according to the documentation.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-02-29 09:46:13 +01:00
Masanari Iida 7ec0f040cf watchdog: Fix typo in pnx4008_wdt.c
Correct spelling "resouce" to "resource" in
drivers/watchdog/pnx4008_wdt.c

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-02-28 17:08:52 +01:00
Masanari Iida e1d1d68aae watchdog: Fix typo in Kconfig
Correct spelling "overidden" to "overridden" in
drivers/watchdog/Kconfig

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-02-28 17:08:48 +01:00
MyungJoo Ham 78d3e00bb0 watchdog: fix error in probe() of s3c2410_wdt (reset at booting)
Probe function of s3c2410 watchdog calls request_irq before initializing
required value (wdt_count). This incurs resetting watchdog counter value
and watchdog-reboot during booting up.

This patch addresses such an issue by calling request_irq later.

Error handling in probe function and calling oder in remove function are
also revised accordingly.

Reported-by: Chanwoo Park <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-02-28 17:08:42 +01:00
Maxim Uvarov 97d2a10d58 watchdog: hpwdt: clean up set_memory_x call for 32 bit
1. address has to be page aligned.
2. set_memory_x uses page size argument, not size.
Bug causes with following commit:
	commit da28179b4e90dda56912ee825c7eaa62fc103797
	Author: Mingarelli, Thomas <Thomas.Mingarelli@hp.com>
	Date:   Mon Nov 7 10:59:00 2011 +0100

     watchdog: hpwdt: Changes to handle NX secure bit in 32bit path

    commit e67d668e14 upstream.

    This patch makes use of the set_memory_x() kernel API in order
    to make necessary BIOS calls to source NMIs.

Signed-off-by: Maxim Uvarov <maxim.uvarov@oracle.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@vger.kernel.org>
2012-02-28 17:08:36 +01:00
Jean-Christophe PLAGNIOL-VILLARD 5e9cf5e18d ARM: at91: make ST (System Timer) soc independent
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Reviewed-by: Ryan Mallon <rmallon@gmail.com>
2012-02-23 09:26:01 +01:00