Commit Graph

1146 Commits

Author SHA1 Message Date
Linus Torvalds f991fae5c6 Power management and ACPI updates for 3.11-rc1
- Hotplug changes allowing device hot-removal operations to fail
   gracefully (instead of crashing the kernel) if they cannot be
   carried out completely.  From Rafael J Wysocki and Toshi Kani.
 
 - Freezer update from Colin Cross and Mandeep Singh Baines targeted
   at making the freezing of tasks a bit less heavy weight operation.
 
 - cpufreq resume fix from Srivatsa S Bhat for a regression introduced
   during the 3.10 cycle causing some cpufreq sysfs attributes to
   return wrong values to user space after resume.
 
 - New freqdomain_cpus sysfs attribute for the acpi-cpufreq driver to
   provide information previously available via related_cpus from
   Lan Tianyu.
 
 - cpufreq fixes and cleanups from Viresh Kumar, Jacob Shin,
   Heiko Stübner, Xiaoguang Chen, Ezequiel Garcia, Arnd Bergmann, and
   Tang Yuantian.
 
 - Fix for an ACPICA regression causing suspend/resume issues to
   appear on some systems introduced during the 3.4 development cycle
   from Lv Zheng.
 
 - ACPICA fixes and cleanups from Bob Moore, Tomasz Nowicki, Lv Zheng,
   Chao Guan, and Zhang Rui.
 
 - New cupidle driver for Xilinx Zynq processors from Michal Simek.
 
 - cpuidle fixes and cleanups from Daniel Lezcano.
 
 - Changes to make suspend/resume work correctly in Xen guests from
   Konrad Rzeszutek Wilk.
 
 - ACPI device power management fixes and cleanups from Fengguang Wu
   and Rafael J Wysocki.
 
 - ACPI documentation updates from Lv Zheng, Aaron Lu and Hanjun Guo.
 
 - Fix for the IA-64 issue that was the reason for reverting commit
   9f29ab1 and updates of the ACPI scan code from Rafael J Wysocki.
 
 - Mechanism for adding CMOS RTC address space handlers from Lan Tianyu
   (to allow some EC-related breakage to be fixed on some systems).
 
 - Spec-compliant implementation of acpi_os_get_timer() from
   Mika Westerberg.
 
 - Modification of do_acpi_find_child() to execute _STA in order to
   to avoid situations in which a pointer to a disabled device object
   is returned instead of an enabled one with the same _ADR value.
   From Jeff Wu.
 
 - Intel BayTrail PCH (Platform Controller Hub) support for the ACPI
   Intel Low-Power Subsystems (LPSS) driver and modificaions of that
   driver to work around a couple of known BIOS issues from
   Mika Westerberg and Heikki Krogerus.
 
 - EC driver fix from Vasiliy Kulikov to make it use get_user() and
   put_user() instead of dereferencing user space pointers blindly.
 
 - Assorted ACPI code cleanups from Bjorn Helgaas, Nicholas Mazzuca and
   Toshi Kani.
 
 - Modification of the "runtime idle" helper routine to take the return
   values of the callbacks executed by it into account and to call
   rpm_suspend() if they return 0, which allows some code bloat
   reduction to be done, from Rafael J Wysocki and Alan Stern.
 
 - New trace points for PM QoS from Sahara <keun-o.park@windriver.com>.
 
 - PM QoS documentation update from Lan Tianyu.
 
 - Assorted core PM code cleanups and changes from Bernie Thompson,
   Bjorn Helgaas, Julius Werner, and Shuah Khan.
 
 - New devfreq driver for the Exynos5-bus device from Abhilash Kesavan.
 
 - Minor devfreq cleanups, fixes and MAINTAINERS update from
   MyungJoo Ham, Abhilash Kesavan, Paul Bolle, Rajagopal Venkat, and
   Wei Yongjun.
 
 - OMAP Adaptive Voltage Scaling (AVS) SmartReflex voltage control
   driver updates from Andrii Tseglytskyi and Nishanth Menon.
 
 /
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Merge tag 'pm+acpi-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management and ACPI updates from Rafael Wysocki:
 "This time the total number of ACPI commits is slightly greater than
  the number of cpufreq commits, but Viresh Kumar (who works on cpufreq)
  remains the most active patch submitter.

  To me, the most significant change is the addition of offline/online
  device operations to the driver core (with the Greg's blessing) and
  the related modifications of the ACPI core hotplug code.  Next are the
  freezer updates from Colin Cross that should make the freezing of
  tasks a bit less heavy weight.

  We also have a couple of regression fixes, a number of fixes for
  issues that have not been identified as regressions, two new drivers
  and a bunch of cleanups all over.

  Highlights:

   - Hotplug changes to support graceful hot-removal failures.

     It sometimes is necessary to fail device hot-removal operations
     gracefully if they cannot be carried out completely.  For example,
     if memory from a memory module being hot-removed has been allocated
     for the kernel's own use and cannot be moved elsewhere, it's
     desirable to fail the hot-removal operation in a graceful way
     rather than to crash the kernel, but currenty a success or a kernel
     crash are the only possible outcomes of an attempted memory
     hot-removal.  Needless to say, that is not a very attractive
     alternative and it had to be addressed.

     However, in order to make it work for memory, I first had to make
     it work for CPUs and for this purpose I needed to modify the ACPI
     processor driver.  It's been split into two parts, a resident one
     handling the low-level initialization/cleanup and a modular one
     playing the actual driver's role (but it binds to the CPU system
     device objects rather than to the ACPI device objects representing
     processors).  That's been sort of like a live brain surgery on a
     patient who's riding a bike.

     So this is a little scary, but since we found and fixed a couple of
     regressions it caused to happen during the early linux-next testing
     (a month ago), nobody has complained.

     As a bonus we remove some duplicated ACPI hotplug code, because the
     ACPI-based CPU hotplug is now going to use the common ACPI hotplug
     code.

   - Lighter weight freezing of tasks.

     These changes from Colin Cross and Mandeep Singh Baines are
     targeted at making the freezing of tasks a bit less heavy weight
     operation.  They reduce the number of tasks woken up every time
     during the freezing, by using the observation that the freezer
     simply doesn't need to wake up some of them and wait for them all
     to call refrigerator().  The time needed for the freezer to decide
     to report a failure is reduced too.

     Also reintroduced is the check causing a lockdep warining to
     trigger when try_to_freeze() is called with locks held (which is
     generally unsafe and shouldn't happen).

   - cpufreq updates

     First off, a commit from Srivatsa S Bhat fixes a resume regression
     introduced during the 3.10 cycle causing some cpufreq sysfs
     attributes to return wrong values to user space after resume.  The
     fix is kind of fresh, but also it's pretty obvious once Srivatsa
     has identified the root cause.

     Second, we have a new freqdomain_cpus sysfs attribute for the
     acpi-cpufreq driver to provide information previously available via
     related_cpus.  From Lan Tianyu.

     Finally, we fix a number of issues, mostly related to the
     CPUFREQ_POSTCHANGE notifier and cpufreq Kconfig options and clean
     up some code.  The majority of changes from Viresh Kumar with bits
     from Jacob Shin, Heiko Stübner, Xiaoguang Chen, Ezequiel Garcia,
     Arnd Bergmann, and Tang Yuantian.

   - ACPICA update

     A usual bunch of updates from the ACPICA upstream.

     During the 3.4 cycle we introduced support for ACPI 5 extended
     sleep registers, but they are only supposed to be used if the
     HW-reduced mode bit is set in the FADT flags and the code attempted
     to use them without checking that bit.  That caused suspend/resume
     regressions to happen on some systems.  Fix from Lv Zheng causes
     those registers to be used only if the HW-reduced mode bit is set.

     Apart from this some other ACPICA bugs are fixed and code cleanups
     are made by Bob Moore, Tomasz Nowicki, Lv Zheng, Chao Guan, and
     Zhang Rui.

   - cpuidle updates

     New driver for Xilinx Zynq processors is added by Michal Simek.

     Multidriver support simplification, addition of some missing
     kerneldoc comments and Kconfig-related fixes come from Daniel
     Lezcano.

   - ACPI power management updates

     Changes to make suspend/resume work correctly in Xen guests from
     Konrad Rzeszutek Wilk, sparse warning fix from Fengguang Wu and
     cleanups and fixes of the ACPI device power state selection
     routine.

   - ACPI documentation updates

     Some previously missing pieces of ACPI documentation are added by
     Lv Zheng and Aaron Lu (hopefully, that will help people to
     uderstand how the ACPI subsystem works) and one outdated doc is
     updated by Hanjun Guo.

   - Assorted ACPI updates

     We finally nailed down the IA-64 issue that was the reason for
     reverting commit 9f29ab11dd ("ACPI / scan: do not match drivers
     against objects having scan handlers"), so we can fix it and move
     the ACPI scan handler check added to the ACPI video driver back to
     the core.

     A mechanism for adding CMOS RTC address space handlers is
     introduced by Lan Tianyu to allow some EC-related breakage to be
     fixed on some systems.

     A spec-compliant implementation of acpi_os_get_timer() is added by
     Mika Westerberg.

     The evaluation of _STA is added to do_acpi_find_child() to avoid
     situations in which a pointer to a disabled device object is
     returned instead of an enabled one with the same _ADR value.  From
     Jeff Wu.

     Intel BayTrail PCH (Platform Controller Hub) support is added to
     the ACPI driver for Intel Low-Power Subsystems (LPSS) and that
     driver is modified to work around a couple of known BIOS issues.
     Changes from Mika Westerberg and Heikki Krogerus.

     The EC driver is fixed by Vasiliy Kulikov to use get_user() and
     put_user() instead of dereferencing user space pointers blindly.

     Code cleanups are made by Bjorn Helgaas, Nicholas Mazzuca and Toshi
     Kani.

   - Assorted power management updates

     The "runtime idle" helper routine is changed to take the return
     values of the callbacks executed by it into account and to call
     rpm_suspend() if they return 0, which allows us to reduce the
     overall code bloat a bit (by dropping some code that's not
     necessary any more after that modification).

     The runtime PM documentation is updated by Alan Stern (to reflect
     the "runtime idle" behavior change).

     New trace points for PM QoS are added by Sahara
     (<keun-o.park@windriver.com>).

     PM QoS documentation is updated by Lan Tianyu.

     Code cleanups are made and minor issues are addressed by Bernie
     Thompson, Bjorn Helgaas, Julius Werner, and Shuah Khan.

   - devfreq updates

     New driver for the Exynos5-bus device from Abhilash Kesavan.

     Minor cleanups, fixes and MAINTAINERS update from MyungJoo Ham,
     Abhilash Kesavan, Paul Bolle, Rajagopal Venkat, and Wei Yongjun.

   - OMAP power management updates

     Adaptive Voltage Scaling (AVS) SmartReflex voltage control driver
     updates from Andrii Tseglytskyi and Nishanth Menon."

* tag 'pm+acpi-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (162 commits)
  cpufreq: Fix cpufreq regression after suspend/resume
  ACPI / PM: Fix possible NULL pointer deref in acpi_pm_device_sleep_state()
  PM / Sleep: Warn about system time after resume with pm_trace
  cpufreq: don't leave stale policy pointer in cdbs->cur_policy
  acpi-cpufreq: Add new sysfs attribute freqdomain_cpus
  cpufreq: make sure frequency transitions are serialized
  ACPI: implement acpi_os_get_timer() according the spec
  ACPI / EC: Add HP Folio 13 to ec_dmi_table in order to skip DSDT scan
  ACPI: Add CMOS RTC Operation Region handler support
  ACPI / processor: Drop unused variable from processor_perflib.c
  cpufreq: tegra: call CPUFREQ_POSTCHANGE notfier in error cases
  cpufreq: s3c64xx: call CPUFREQ_POSTCHANGE notfier in error cases
  cpufreq: omap: call CPUFREQ_POSTCHANGE notfier in error cases
  cpufreq: imx6q: call CPUFREQ_POSTCHANGE notfier in error cases
  cpufreq: exynos: call CPUFREQ_POSTCHANGE notfier in error cases
  cpufreq: dbx500: call CPUFREQ_POSTCHANGE notfier in error cases
  cpufreq: davinci: call CPUFREQ_POSTCHANGE notfier in error cases
  cpufreq: arm-big-little: call CPUFREQ_POSTCHANGE notfier in error cases
  cpufreq: powernow-k8: call CPUFREQ_POSTCHANGE notfier in error cases
  cpufreq: pcc: call CPUFREQ_POSTCHANGE notfier in error cases
  ...
2013-07-03 14:35:40 -07:00
Linus Torvalds 60b5adffb4 GPIO changes for the v3.11 development cycle:
- Incremental development for the Langwell (Atom SoC),
   Xilinx, ICH and RCAR drivers.
 - Cleanups from Jingoo Han, Axel Lin, Wei Jongjun,
   Wolfram Sang, Tushar Behera, Sachin Kamat and Yijing Wang.
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Merge tag 'gpio-for-v3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "Here is a batch of GPIO changes for v3.11.  I have agreed with Grant
  to take care of the pull requests for this development cycle.

  No special things are happening in the GPIO tree this time (nice with
  some calm) and I have been extra careful to do regression builds and
  it's well boiled in -next.

  GPIO changes for the v3.11 development cycle:
   - Incremental development for the Langwell (Atom SoC), Xilinx, ICH
     and RCAR drivers.
   - Cleanups from Jingoo Han, Axel Lin, Wei Jongjun, Wolfram Sang,
     Tushar Behera, Sachin Kamat and Yijing Wang"

* tag 'gpio-for-v3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (35 commits)
  Gpio/trivial: replace numeric with standard PM state macros
  gpiolib: remove warnning of allocations with IRQs disabled
  gpio: grgpio: Staticize local symbols
  gpio-langwell: remove Withney point support
  gpio: ich: add GPO_BLINK support
  gpio-sta2x11: Convert to use devm_ioremap_resource
  gpio_msm: Convert to use devm_ioremap_resource
  gpio-rcar: Use OUTDT when reading GPIOs configured as output
  gpio-sta2x11: Fix potential NULL pointer dereference
  gpio/omap: omap_gpio_init_context stub must be inline
  gpio: msm-v1: Remove errant __devinit to fix compile
  gpio: devres: make comments proper
  GPIO: xilinx: Enable driver for Xilinx zynq
  DT: Add documentation for gpio-xilinx
  GPIO: xilinx: Use BIT macro
  GPIO: xilinx: Use __raw_readl/__raw_writel IO functions
  GPIO: xilinx: Add support for dual channel
  GPIO: xilinx: Simplify driver probe function
  gpio: sx150x: convert to use devm_* functions
  MAINTAINERS: add linux-gpio mailing list
  ...
2013-07-03 11:39:44 -07:00
Linus Torvalds a4883ef6af Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core irq changes from Ingo Molnar:
 "The main changes:

  - generic-irqchip driver additions, cleanups and fixes

  - 3 new irqchip drivers: ARMv7-M NVIC, TB10x and Marvell Orion SoCs

  - irq_get_trigger_type() simplification and cross-arch cleanup

  - various cleanups, simplifications

  - documentation updates"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits)
  softirq: Use _RET_IP_
  genirq: Add the generic chip to the genirq docbook
  genirq: generic-chip: Export some irq_gc_ functions
  genirq: Fix can_request_irq() for IRQs without an action
  irqchip: exynos-combiner: Staticize combiner_init
  irqchip: Add support for ARMv7-M NVIC
  irqchip: Add TB10x interrupt controller driver
  irqdomain: Use irq_get_trigger_type() to get IRQ flags
  MIPS: octeon: Use irq_get_trigger_type() to get IRQ flags
  arm: orion: Use irq_get_trigger_type() to get IRQ flags
  mfd: stmpe: use irq_get_trigger_type() to get IRQ flags
  mfd: twl4030-irq: Use irq_get_trigger_type() to get IRQ flags
  gpio: mvebu: Use irq_get_trigger_type() to get IRQ flags
  genirq: Add irq_get_trigger_type() to get IRQ flags
  genirq: Irqchip: document gcflags arg of irq_alloc_domain_generic_chips
  genirq: Set irq thread to RT priority on creation
  irqchip: Add support for Marvell Orion SoCs
  genirq: Add kerneldoc for irq_disable.
  genirq: irqchip: Add mask to block out invalid irqs
  genirq: Generic chip: Add linear irq domain support
  ...
2013-07-02 16:14:35 -07:00
Linus Torvalds 0bf6a210a4 ARM SoC driver specific changes
These changes are all driver specific and cross over between arm-soc
 contents and some other subsystem, in these cases cpufreq, crypto,
 dma, pinctrl, mailbox and usb, and the subsystem owners agreed to
 have these changes merged through arm-soc. As we proceed to untangle
 the dependencies between platform code and driver code, the amount of
 changes in this category is fortunately shrinking, for 3.11 we have
 16 branches here and 101 non-merge changesets, the majority of which
 are for the stedma40 dma engine driver used in the ux500 platform.
 Cleaning up that code touches multiple subsystems, but gets rid
 of the dependency in the end.
 
 The mailbox code moved out from mach-omap2 to drivers/mailbox
 is an intermediate step and is still omap specific at the moment.
 Patches exist to generalize the subsystem and add other drivers
 with the same API, but those did not make it for 3.11.
 
 Conflicts:
 * In cpu-db8500.c results from the removal of the u8500_of_init_devices
   function in combination with the split of u8500_auxdata_lookup.
 
 * In arch/arm/mach-omap2/devices.c, the includes got reshuffled.
   we need to keep linux/wl12xx.h and linux/platform_data/mailbox-omap.h.
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Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver specific changes from Arnd Bergmann:
 "These changes are all driver specific and cross over between arm-soc
  contents and some other subsystem, in these cases cpufreq, crypto,
  dma, pinctrl, mailbox and usb, and the subsystem owners agreed to have
  these changes merged through arm-soc.

  As we proceed to untangle the dependencies between platform code and
  driver code, the amount of changes in this category is fortunately
  shrinking, for 3.11 we have 16 branches here and 101 non-merge
  changesets, the majority of which are for the stedma40 dma engine
  driver used in the ux500 platform.  Cleaning up that code touches
  multiple subsystems, but gets rid of the dependency in the end.

  The mailbox code moved out from mach-omap2 to drivers/mailbox is an
  intermediate step and is still omap specific at the moment.  Patches
  exist to generalize the subsystem and add other drivers with the same
  API, but those did not make it for 3.11."

* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (101 commits)
  crypto: ux500: use dmaengine_submit API
  crypto: ux500: use dmaengine_prep_slave_sg API
  crypto: ux500: use dmaengine_device_control API
  crypto: ux500/crypt: add missing __iomem qualifiers
  crypto: ux500/hash: add missing static qualifiers
  crypto: ux500/hash: use readl on iomem addresses
  dmaengine: ste_dma40: Declare memcpy config as static
  ARM: ux500: Remove mop500_snowball_ethernet_clock_enable()
  ARM: ux500: Correct the EN_3v3 regulator's on/off GPIO
  ARM: ux500: Provide a AB8500 GPIO Device Tree node
  gpio: rcar: fix gpio_rcar_of_table
  gpio-rcar: Remove #ifdef CONFIG_OF around OF-specific sections
  gpio-rcar: Reference core gpio documentation in the DT bindings
  clk: exynos5250: Add enum entries for divider clock of i2s1 and i2s2
  ARM: dts: Update Samsung I2S documentation
  ARM: dts: add clock provider information for i2s controllers in Exynos5250
  ARM: dts: add Exynos audio subsystem clock controller node
  clk: samsung: register audio subsystem clocks using common clock framework
  ARM: dts: use #include for all device trees for Samsung
  pinctrl: s3c24xx: use correct header for chained_irq functions
  ...
2013-07-02 14:33:21 -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
Linus Torvalds d2033f2c1d ARM SoC cleanups
This contains cleanups as preparation for other branches adding new
 features, we pulled 16 branches for 9 platforms into this one.
 
 Most notable here is the removal of support for ATAGS based OMAP4
 systems. Since all OMAP4 machines are fully functional with DT based
 booting in 3.10, we can remove a lot of code here.
 
 Also noteworthy is Maxime Ripard's cleanup of the machine descriptors,
 which means we need no machine descriptors in a lot more cases and
 can boot additional machines by just having the respective device
 drivers enabled.
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Merge tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Arnd Bergmann:
 "This contains cleanups as preparation for other branches adding new
  features, we pulled 16 branches for 9 platforms into this one.

  Most notable here is the removal of support for ATAGS based OMAP4
  systems.  Since all OMAP4 machines are fully functional with DT based
  booting in 3.10, we can remove a lot of code here.

  Also noteworthy is Maxime Ripard's cleanup of the machine descriptors,
  which means we need no machine descriptors in a lot more cases and can
  boot additional machines by just having the respective device drivers
  enabled."

* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (76 commits)
  ARM: picoxcell: remove .nr_irqs reference
  ARM: s5p64x0: avoid build warning for uncompress.h
  ARM: SAMSUNG: Remove unused plat/regs-watchdog.h header
  ARM: SAMSUNG: Remove legacy watchdog reset code
  ARM: SAMSUNG: Let platforms use the new watchdog reset driver
  ARM: SAMSUNG: Add watchdog reset driver
  ARM: SAMSUNG: Use local definitions of watchdog registers
  watchdog: s3c2410_wdt: Use local register definitions
  ARM: S5P64X0: Use common uncompress.h part for plat-samsung
  ARM: SAMSUNG: Consolidate uncompress subroutine
  ARM: at91: drop rm9200dk board support
  ARM: dts: msm: Fix merge resolution
  ARM: OMAP1: Remove dma.h
  ARM: OMAP1: Remove legacy irda.h and irda setup from board files
  ARM: OMAP1: Remove duplicated DMA channel definitions
  ARM: OMAP1: Remove McBSP DMA channel definitions
  ARM: OMAP2+: Remove dma.h
  ARM: OMAP2+: hwmod: Remove remaining DMA channel definitions
  ARM: OMAP2+: Remove duplicated DMA channel definitions
  ARM: OMAP2+: Remove AES crypto device DMA channel definitions
  ...
2013-07-02 13:25:35 -07:00
Linus Torvalds 22237d5a58 ARM SoC non-cricitical bug fixes
These are various bug fixes that were not considered important enough
 for merging into 3.10. The majority of the ARM fixes are for the OMAP
 and at91 platforms, and there is another set of bug fixes for device
 drivers that resolve 'randconfig' build errors and that the subsystem
 maintainers either did not pick up or preferred to get merged through
 the arm-soc tree.
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Merge tag 'fixes-non-critical-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC non-cricitical bug fixes from Arnd Bergmann:
 "These are various bug fixes that were not considered important enough
  for merging into 3.10.

  The majority of the ARM fixes are for the OMAP and at91 platforms, and
  there is another set of bug fixes for device drivers that resolve
  'randconfig' build errors and that the subsystem maintainers either
  did not pick up or preferred to get merged through the arm-soc tree."

* tag 'fixes-non-critical-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (43 commits)
  ARM: at91/PMC: use at91_usb_rate() for UTMI PLL
  ARM: at91/PMC: fix at91sam9n12 USB FS init
  ARM: at91/PMC: at91sam9n12 family has a PLLB
  ARM: at91/PMC: sama5d3 family doesn't have a PLLB
  ARM: tegra: fix section mismatch in tegra_pmc_parse_dt
  ARM: mxs: don't select HAVE_PWM
  ARM: mxs: stub out mxs_pm_init for !CONFIG_PM
  cpuidle: calxeda: select ARM_CPU_SUSPEND
  ARM: mvebu: fix length of ethernet registers in mv78260 dtsi
  ARM: at91: cpuidle: Fix target_residency
  ARM: at91: fix at91_extern_irq usage for non-dt boards
  ARM: sirf: use CONFIG_SIRF rather than CONFIG_PRIMA2 where necessary
  clocksource: kona: adapt to CLOCKSOURCE_OF_DECLARE change
  X.509: do not emit any informational output
  mtd: omap2: allow bulding as a module
  [SCSI] nsp32: use mdelay instead of large udelay constants
  hwrng: bcm2835: fix MODULE_LICENSE tag
  ARM: at91: Change the internal SRAM memory type MT_MEMORY_NONCACHED
  ARM: at91: Fix link breakage when !CONFIG_PHYLIB
  MAINTAINERS: Add exynos filename match to ARM/S5P EXYNOS ARM ARCHITECTURES
  ...
2013-07-02 13:24:47 -07:00
Yijing Wang 038f0babc9 Gpio/trivial: replace numeric with standard PM state macros
Use standard PM state macros PCI_Dx instead of numeric 0/1/2..

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Cc: Michael Buesch <m@bues.ch>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Jiri Kosina <trivial@kernel.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-30 01:37:07 +02:00
Javier Martinez Canillas 397eada946 gpio/omap: don't use linear domain mapping for OMAP1
Commit ede4d7a5 ("gpio/omap: convert gpio irq domain to linear mapping")
converted the OMAP GPIO driver to use a linear mapping for the GPIO IRQ
domain instead of using a legacy mapping. Not using a legacy mapping has
a number of benefits but it requires the platform to support SPARSE_IRQ
which currently is not supported on OMAP1.

So this change caused a regression on OMAP1 platforms [1].

Since this issue is not present on all OMAP2+ platforms, there is no need to
revert the driver to use legacy domain mapping for all the platforms.

[1]: http://www.mail-archive.com/linux-omap@vger.kernel.org/msg89005.html

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-06-25 23:13:40 -07:00
Javier Martinez Canillas fb90c22ab5 gpio: mvebu: Use irq_get_trigger_type() to get IRQ flags
Use irq_get_trigger_type() to get the IRQ trigger type flags
instead calling irqd_get_trigger_type(irq_get_irq_data(irq))

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mips@linux-mips.org
Link: http://lkml.kernel.org/r/1371228049-27080-3-git-send-email-javier.martinez@collabora.co.uk
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2013-06-25 11:48:25 +02:00
Arnd Bergmann e7692e2cfd Second Round of Renesas ARM based SoC GPIO R-Car updates for v3.11
Documentation enhancement and code cleanup by Laurent Pinchart.
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Merge tag 'renesas-gpio-rcar2-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/drivers

From Simon Horman:

Second Round of Renesas ARM based SoC GPIO R-Car updates for v3.11

Documentation enhancement and code cleanup by Laurent Pinchart.

* tag 'renesas-gpio-rcar2-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  gpio-rcar: Remove #ifdef CONFIG_OF around OF-specific sections
  gpio-rcar: Reference core gpio documentation in the DT bindings

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-21 15:15:57 +02:00
Arnd Bergmann ff8fa4e287 cleanup and removing dead code for only support DT for exynos
- remove board file for exynos
 - remove legacy files which are not used anymore
 - decouple ARCH_EXYNOS from PLAT_S5P
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Merge tag 'remove-nondt-exynos-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc

From Kukjin Kim:

cleanup and removing dead code for only support DT for exynos
- remove board file for exynos
- remove legacy files which are not used anymore
- decouple ARCH_EXYNOS from PLAT_S5P

* tag 'remove-nondt-exynos-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (35 commits)
  ARM: EXYNOS: Remove remaining dead code after non-DT support removal
  ARM: EXYNOS: Remove legacy L2X0 initialization
  ARM: EXYNOS: Use exynos_init_io() as map_io callback
  ARM: EXYNOS: Remove custom init_irq callbacks
  ARM: EXYNOS: Remove mach/regs-usb-phy.h header
  thermal: exynos: Support both EXYNOS4X12 SoCs
  ARM: EXYNOS: Remove unused base addresses from mach/map.h header
  ARM: EXYNOS: Remove mach/irqs.h header
  ARM: EXYNOS: Select SPARSE_IRQ for Exynos
  ARM: SAMSUNG: Make legacy MFC support code depend on SAMSUNG_ATAGS
  ARM: EXYNOS: Remove mach/regs-gpio.h header
  ARM: EXYNOS: Remove mach/gpio.h
  ARM: EXYNOS: Remove setup-i2c0.c
  ARM: EXYNOS: Do not select legacy Kconfig symbols any more
  ARM: SAMSUNG: Include most of mach/ headers conditionally
  ARM: EXYNOS: Decouple ARCH_EXYNOS from PLAT_S5P
  USB: Check for ARCH_EXYNOS separately
  platform: Check for ARCH_EXYNOS separately
  ARM: SAMSUNG: Compile legacy IRQ and GPIO PM code only with ATAGS support
  ARM: EXYNOS: Provide compatibility stubs for PM code in pm-core.h header
  ...

Conflicts:
	arch/arm/mach-exynos/Kconfig

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20 22:36:11 +02:00
Zhangfei Gao 3bae4811fb gpiolib: remove warnning of allocations with IRQs disabled
Move of_gpiochip_add outof spin_lock, since kzalloc inside
of_gpiochip_add -> of_gpiochip_add_pin_range -> gpiochip_add_pin_range -> kzalloc

WARNING: at kernel/lockdep.c:2740 lockdep_trace_alloc+0xf8/0xfc()
DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags))

Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-20 10:37:41 +02:00
Sachin Kamat 61e3884ec1 gpio: grgpio: Staticize local symbols
Local symbols accessed only in this file are made static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-19 21:40:38 +02:00
Andy Shevchenko 10b20a931c gpio-langwell: remove Withney point support
It seems there is no user of the wp_gpio driver in the kernel. Let's remove it.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-19 21:18:59 +02:00
Vincent Donnefort 7f6569f546 gpio: ich: add GPO_BLINK support
This patch makes sure blink hardware is disabled for selected GPIO. Blink
hardware is controled by GPO_BLINK register and is available for GPIOs from 0
to 31.

Signed-off-by: Vincent Donnefort <vdonnefort@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-19 21:14:00 +02:00
Arnd Bergmann 30d2266c68 gpio: rcar: fix gpio_rcar_of_table
The device table needs to be terminated with an empty element.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Cc: Simon Horman <horms+renesas@verge.net.au>
2013-06-19 17:47:25 +02:00
Laurent Pinchart e305062e94 gpio-rcar: Remove #ifdef CONFIG_OF around OF-specific sections
All functions and data types used by OF-specific code paths are declared
in <linux/of.h> regardless of CONFIG_OF. Replace the #ifdef CONFIG_OF
guard with a if(IS_ENABLED(CONFIG_OF)) and let the compiler optimize
the unused code away.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-06-19 21:38:38 +09:00
Tomasz Figa 880cf0717f ARM: SAMSUNG: Introduce GPIO_SAMSUNG Kconfig entry
This patch adds Kconfig entry that selects whether legacy Samsung GPIO
driver should be built or not. For platforms that support only DT based
boot, the new pinctrl driver is used and so the old one is not needed.

Cc: Grant Likely <grant.likely@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-06-19 01:24:27 +09:00
Tushar Behera 62ffac141e gpio-sta2x11: Convert to use devm_ioremap_resource
Commit 75096579c3 ("lib: devres: Introduce devm_ioremap_resource()")
introduced devm_ioremap_resource() and deprecated the use of
devm_request_and_ioremap().

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
CC: linux-gpio@vger.kernel.org
CC: Grant Likely <grant.likely@linaro.org>
CC: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 10:53:38 +02:00
Tushar Behera 68515bbe76 gpio_msm: Convert to use devm_ioremap_resource
Commit 75096579c3 ("lib: devres: Introduce devm_ioremap_resource()")
introduced devm_ioremap_resource() and deprecated the use of
devm_request_and_ioremap().

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
CC: linux-gpio@vger.kernel.org
CC: Linus Walleij <linus.walleij@linaro.org>
CC: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 10:52:40 +02:00
Magnus Damm ae9550f635 gpio-rcar: Use OUTDT when reading GPIOs configured as output
Testing on r8a7790 shows that INDT does not indicate the correct
pin state when reading a GPIO configured as output, so update
the gpio_rcar_get() function to handle this case.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 10:34:36 +02:00
Sachin Kamat cd73891647 gpio-sta2x11: Fix potential NULL pointer dereference
devm_kzalloc can return NULL. Check for it before dereferencing.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 10:26:34 +02:00
Arnd Bergmann ea4a21a298 gpio/omap: omap_gpio_init_context stub must be inline
The bug fix 352a2d5bf "gpio/omap: ensure gpio context is initialised"
has caused a new warning for omap1_defconfig:

drivers/gpio/gpio-omap.c:1465:13: warning: 'omap_gpio_init_context' defined but not used [-Wunused-function]
 static void omap_gpio_init_context(struct gpio_bank *p) {}
             ^

The solution is to mark the stub function as 'static inline' so
it gets left out of the build when unused.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 08:26:40 +02:00
Stephen Boyd 83bf2db916 gpio: msm-v1: Remove errant __devinit to fix compile
Commit 7bce696 (gpio: Make gpio-msm-v1 into a platform driver,
2013-03-04) was based on an older kernel where __devinit still
existed. Remove the erroneous __devinit marking.

Cc: David Brown <davidb@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 07:54:05 +02:00
Wolfram Sang 713b7ef835 gpio: devres: make comments proper
The free-function mentioned "interrupt" instead of "GPIO". While we are
here, use "GPIO" (capital letters) consistently.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 07:53:00 +02:00
Michal Simek 78c7d8d289 GPIO: xilinx: Enable driver for Xilinx zynq
Enable gpio driver for usage on Xilinx ARM zynq platform.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 07:51:55 +02:00
Michal Simek 9f7f0b2bbc GPIO: xilinx: Use BIT macro
Use BIT macro from linux/bitops.h.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 07:47:33 +02:00
Michal Simek cc090d61d1 GPIO: xilinx: Use __raw_readl/__raw_writel IO functions
This driver can be used on Xilinx ARM Zynq platform
where in_be32/out_be32 functions are not implemented.
Use __raw_readl/__raw_writel functions which are
implemented on Microblaze and PowerPC.
For ARM readl/writel functions are used instead.

The correct way how to implement this is to detect
endians directly on IP. But for the gpio case
without interrupt connected(it means without
interrupt logic) there are just 2 registers
data and tristate where auto detection can't be done.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 07:46:18 +02:00
Michal Simek 74600ee017 GPIO: xilinx: Add support for dual channel
Supporting the second channel in the driver.
Offset is 0x8 and both channnels share the same
IRQ.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 07:42:30 +02:00
Michal Simek 6f8bf50031 GPIO: xilinx: Simplify driver probe function
Simplification is done by using OF helper function
which increase readability of code and remove
(if (var) var = be32_to_cpup;) assignment.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 07:38:50 +02:00
Olof Johansson e45600107b Cleanups for MSM for 3.11
These are a handful of cleanups to the MSM tree.  The gpio cleanups
 get us closer to having proper pinmux and gpio support.
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Merge tag 'msm-cleanup-for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm into next/cleanup

From David Brown:
Cleanups for MSM for 3.11

These are a handful of cleanups to the MSM tree.  The gpio cleanups
get us closer to having proper pinmux and gpio support.

* tag 'msm-cleanup-for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm:
  mfd: ssbi: Use devm_* and simplify code
  gpio: msm: Add device tree and irqdomain support for gpio-msm-v2
  ARM: msm: Remove gpiomux-v2 and re-organize MSM_GPIOMUX configs
  msm: iomap: Remove unused bases and mappings
  msm: Remove unused file core.h
  ARM: msm: Remove init_irq declaration in machine description

Signed-off-by: Olof Johansson <olof@lixom.net>

Conflicts:
	arch/arm/boot/dts/msm8660-surf.dts
	arch/arm/boot/dts/msm8960-cdp.dts
2013-06-14 18:28:02 -07:00
Olof Johansson bae994b199 Some minor fixes for MSM for 3.11
I don't expect these to be necessary for stable, since the fixes are
 to recently added code.  The strncpy fix is only in debug code that
 isn't normally compiled or used (and is being removed in upcoming
 patches).
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Merge tag 'msm-fix-for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm into next/cleanup

From David Brown:
Some minor fixes for MSM for 3.11

I don't expect these to be necessary for stable, since the fixes are
to recently added code.  The strncpy fix is only in debug code that
isn't normally compiled or used (and is being removed in upcoming
patches).

* tag 'msm-fix-for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm:
  gpio: msm-v1: Remove errant __devinit to fix compile
  mfd: ssbi: Add MODULE_DEVICE_TABLE
  ARM: dts: msm: Fix bad register addresses
  arch: arm: mach-msm: using strlcpy instead of strncpy

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-14 18:23:23 -07:00
Olof Johansson f1324f69c0 Some minor fixes for MSM for 3.11
I don't expect these to be necessary for stable, since the fixes are
 to recently added code.  The strncpy fix is only in debug code that
 isn't normally compiled or used (and is being removed in upcoming
 patches).
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Merge tag 'msm-fix-for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm into next/fixes-non-critical

From David Brown:
Some minor fixes for MSM for 3.11

I don't expect these to be necessary for stable, since the fixes are
to recently added code.  The strncpy fix is only in debug code that
isn't normally compiled or used (and is being removed in upcoming
patches).

* tag 'msm-fix-for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm:
  gpio: msm-v1: Remove errant __devinit to fix compile
  mfd: ssbi: Add MODULE_DEVICE_TABLE
  ARM: dts: msm: Fix bad register addresses
  arch: arm: mach-msm: using strlcpy instead of strncpy

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-14 18:21:37 -07:00
Olof Johansson 38d77ff90a Renesas ARM based SoC GPIO R-Car updates for v3.11
DT support to GPIO R-Car driver by Laurent Pinchart.
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Merge tag 'renesas-gpio-rcar-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/drivers

From Simon Horman:
Renesas ARM based SoC GPIO R-Car updates for v3.11

DT support to GPIO R-Car driver by Laurent Pinchart.

* tag 'renesas-gpio-rcar-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (131 commits)
  gpio-rcar: Add DT support
2013-06-14 17:45:39 -07:00
Rohit Vaswani 43f68444bc gpio: msm: Add device tree and irqdomain support for gpio-msm-v2
This cleans up the gpio-msm-v2 driver of all the global define usage.
The number of gpios are now defined in the device tree. This enables
adding irqdomain support as well.

Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
2013-06-12 14:50:12 -07:00
Stephen Boyd 7ba655fc96 gpio: msm-v1: Remove errant __devinit to fix compile
Commit 7bce696 (gpio: Make gpio-msm-v1 into a platform driver,
2013-03-04) was based on an older kernel where __devinit still
existed. Remove the erroneous __devinit marking.

Cc: David Brown <davidb@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
2013-06-12 14:49:06 -07:00
Rohit Vaswani eda9dcfa56 ARM: msm: Remove gpiomux-v2 and re-organize MSM_GPIOMUX configs
Remove gpiomux-v2 as it's not being used and make way for future improvements.

Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
2013-06-12 13:52:51 -07:00
Laurent Pinchart 159f8a0209 gpio-rcar: Add DT support
Add DT bindings for the gpio-rcar driver and read the device
configuration from the DT node at probe time if available.

Cc: devicetree-discuss@lists.ozlabs.org
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-06-12 21:48:09 +09:00
Olof Johansson ea36b02269 Merge branch 'clps711x/soc' into next/soc
From Alexander Shiyan, this is a series of cleanups of clps711x, movig it
closer to multiplatform and cleans up a bunch of old code.

* clps711x/soc:
  ARM: clps711x: Update defconfig
  ARM: clps711x: Add support for SYSCON driver
  ARM: clps711x: edb7211: Control LCD backlight via PWM
  ARM: clps711x: edb7211: Add support for I2C
  ARM: clps711x: Optimize interrupt handling
  ARM: clps711x: Add clocksource framework
  ARM: clps711x: Replace "arch_initcall" in common code with ".init_early"
  ARM: clps711x: Move specific definitions from hardware.h to boards files
  ARM: clps711x: p720t: Define PLD registers as GPIOs
  ARM: clps711x: autcpu12: Move remaining specific definitions to board file
  ARM: clps711x: autcpu12: Special driver for handling memory is removed
  ARM: clps711x: autcpu12: Add support for NOR flash
  ARM: clps711x: autcpu12: Move LCD DPOT definitions to board file
  ARM: clps711x: Set PLL clock to zero if we work from 13 mHz source
  ARM: clps711x: Remove NEED_MACH_MEMORY_H dependency
  ARM: clps711x: Re-add GPIO support
  GPIO: clps711x: Add DT support
  GPIO: clps711x: Rewrite driver for using generic GPIO code
  + Linux 3.10-rc4

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-11 15:57:51 -07:00
Alexander Shiyan a180132f27 GPIO: clps711x: Add DT support
Add DT support to the CLPS711X GPIO driver.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-11 15:44:57 -07:00
Alexander Shiyan 55fe14ab87 GPIO: clps711x: Rewrite driver for using generic GPIO code
This patch provides rewritten driver for CLPS711X GPIO which uses
generic GPIO code.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-11 15:44:02 -07:00
Kukjin Kim 0e81a3529e Merge branch 'v3.11-next/driver-pinctrl' into v3.11-next/s3c24xx-driver 2013-06-12 05:24:16 +09:00
Kukjin Kim 20e3753294 Merge branch 'v3.11-next/driver-gpio' into v3.11-next/s3c24xx-driver 2013-06-12 05:24:08 +09:00
Sylwester Nawrocki 9fdb27d48a gpio: samsung: Remove OF support for s3c24xx
There is no users of this code and there is already a pinctrl
driver written for s3c24xx which is going to be used on any
s3c24xx DT platforms. Hence this has been effectively a dead
code in mainline.

This reverts commit 172c6a1365
gpio: samsung: add devicetree init for s3c24xx arches

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-06-12 05:22:17 +09:00
Olof Johansson 620fa619a9 Renesas ARM based SoC pinmux and GPIO update for v3.11
SH-PFC:
 * Entries for INTC external IRQs
 * Remove dependency on GPIOLIB
 * PFC support for r8a7790 SoC
 * Pinmux support for r8a7778 SoC
 * Increase pin group and function coverage for sh7372, r8a7740,
   r8a7778, r8a7779 and r8a7790 SoCs
 * Use pinctrl mapping on mackerel, ap4evb, armadillo800eva,
   bonito, bockw, lager boards
 * Use RCAR_GP_PIN macro in marzen board
 * Remove unused GPIOs for sh7372, sh73a0, r8a7740 and r8a7790 SoCs
 * Add bias (pull-up/down) pinconf support for r8a7740 SoC
 * Add VCCQ support for sh73a0
 
 GPIO car:
 * Add RCAR_GP_PIN macro
 * Add support for IRQ_TYPE_EDGE_BOTH
 * Make the platform data gpio_base field signed
 
 The GPIO changes have been included as the RCAR_GP_PIN and
 IRQ_TYPE_EDGE_BOTH changes are depended on by SH-PFC changes.
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Merge tag 'renesas-pinmux-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc

From Simon Horman:
Renesas ARM based SoC pinmux and GPIO update for v3.11

SH-PFC:
* Entries for INTC external IRQs
* Remove dependency on GPIOLIB
* PFC support for r8a7790 SoC
* Pinmux support for r8a7778 SoC
* Increase pin group and function coverage for sh7372, r8a7740,
  r8a7778, r8a7779 and r8a7790 SoCs
* Use pinctrl mapping on mackerel, ap4evb, armadillo800eva,
  bonito, bockw, lager boards
* Use RCAR_GP_PIN macro in marzen board
* Remove unused GPIOs for sh7372, sh73a0, r8a7740 and r8a7790 SoCs
* Add bias (pull-up/down) pinconf support for r8a7740 SoC
* Add VCCQ support for sh73a0

GPIO car:
* Add RCAR_GP_PIN macro
* Add support for IRQ_TYPE_EDGE_BOTH
* Make the platform data gpio_base field signed

The GPIO changes have been included as the RCAR_GP_PIN and
IRQ_TYPE_EDGE_BOTH changes are depended on by SH-PFC changes.

* tag 'renesas-pinmux-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (132 commits)
  ARM: shmobile: marzen: Use RCAR_GP_PIN macro
  ARM: shmobile: lager: Initialize pinmux
  ARM: shmobile: bockw: add pinctrl support
  ARM: shmobile: kzm9g: tidyup FSI pinctrl
  ARM: shmobile: r8a7740 pinmux platform device cleanup
  ARM: shmobile: r8a7790: Configure R-Car GPIO for IRQ_TYPE_EDGE_BOTH
  pinctrl: sh-pfc: r8a7779: Fix missing MOD_SEL2 entry
  Revert "ARM: shmobile: Disallow PINCTRL without GPIOLIB"
  pinctrl: r8a7790: add pinmux data for MMCIF and SDHI interfaces
  sh-pfc: r8a7778: add MMCIF pin groups
  sh-pfc: r8a7778: add HSPI pin groups
  sh-pfc: r8a7778: add I2C pin groups
  pinctrl: sh-pfc: fix a typo in pfc-r8a7790
  pinctrl: sh-pfc: fix r8a7790 Function Select register tables
  sh-pfc: r8a7778: fixup IRQ1A settings
  sh-pfc: r8a7779: add Ether pin groups
  sh-pfc: r8a7778: add Ether pin groups
  sh-pfc: r8a7778: add VIN pin groups
  sh-pfc: sh73a0: Remove function GPIOs
  sh-pfc: r8a7790: Add TPU pin groups and functions
  ...
2013-06-11 00:21:46 -07:00
Simon Horman 7e1092b5a2 gpio-rcar: Add support for IRQ_TYPE_EDGE_BOTH
As hardware support for this feature is not universal for all SoCs a flag,
has_both_edge_trigger, has been added to the platform data of the driver to
allow this feature to be enabled.

The motivation for this is to allow use of the gpio-keys driver on the
lager board which is based on the r8a7790 SoC. The V2 of this patch has been
fully exercised using that driver on that board.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-06-04 20:28:36 +09:00
Kuninori Morimoto c234962b80 gpio-rcar: R-Car GPIO IRQ share interrupt
R-Car H1 or Gen2 GPIO interrupts are assigned per each GPIO domain,
but, Gen1 E1/M1 GPIO interrupts are shared for all GPIO domain.
gpio-rcar driver needs IRQF_SHARED flags for these.
This patch was tested on Bock-W board

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-06-04 20:28:36 +09:00
Rafael J. Wysocki 45f0a85c82 PM / Runtime: Rework the "runtime idle" helper routine
The "runtime idle" helper routine, rpm_idle(), currently ignores
return values from .runtime_idle() callbacks executed by it.
However, it turns out that many subsystems use
pm_generic_runtime_idle() which checks the return value of the
driver's callback and executes pm_runtime_suspend() for the device
unless that value is not 0.  If that logic is moved to rpm_idle()
instead, pm_generic_runtime_idle() can be dropped and its users
will not need any .runtime_idle() callbacks any more.

Moreover, the PCI, SCSI, and SATA subsystems' .runtime_idle()
routines, pci_pm_runtime_idle(), scsi_runtime_idle(), and
ata_port_runtime_idle(), respectively, as well as a few drivers'
ones may be simplified if rpm_idle() calls rpm_suspend() after 0 has
been returned by the .runtime_idle() callback executed by it.

To reduce overall code bloat, make the changes described above.

Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Kevin Hilman <khilman@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
2013-06-03 21:49:52 +02:00
Nikolay Balandin 644c8df2fb gpio: sx150x: convert to use devm_* functions
Use devm_* functions to make cleanup paths simpler.

Signed-off-by: Nikolay Balandin <nbalandin@dev.rtsoft.ru>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-30 22:18:36 +02:00