Commit Graph

313502 Commits

Author SHA1 Message Date
Linus Torvalds
e81218f5f0 arm-soc: pincontrol drivers
We are converting platforms to use the pinctrl framework over time,
 rather than using platform specific code for the same effect. This
 adds the respective driver for the prima2 platform.
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Merge tag 'pinctrl' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc pincontrol drivers update from Arnd Bergmann:
 "We are converting platforms to use the pinctrl framework over time,
  rather than using platform specific code for the same effect.  This
  adds the respective driver for the prima2 platform."

* tag 'pinctrl' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: prima2: enable gpiolib unconditionally
  PINCTRL: SiRF: add GPIO and GPIO irq support in CSR SiRFprimaII
2012-07-23 17:36:53 -07:00
Linus Torvalds
3645f0cd96 arm-soc: sparse IRQ conversion
The I.MX platform is getting converted to use sparse IRQs. We are doing
 this for all platforms over time, because this is one of the
 requirements for building a multiplatform kernel, and generally a good
 idea.
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Merge tag 'irq' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc sparse IRQ conversion from Arnd Bergmann:
 "The I.MX platform is getting converted to use sparse IRQs.  We are
  doing this for all platforms over time, because this is one of the
  requirements for building a multiplatform kernel, and generally a good
  idea."

* tag 'irq' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: imx: select USE_OF
  ARM: imx: Fix build error due to missing irqs.h include
  ARM: imx: enable SPARSE_IRQ for imx platform
  ARM: fiq: change FIQ_START to a variable
  tty: serial: imx: remove the use of MXC_INTERNAL_IRQS
  ARM: imx: remove unneeded mach/irq.h inclusion
  i2c: imx: remove unneeded mach/irqs.h inclusion
  ARM: imx: add a legacy irqdomain for mx31ads
  ARM: imx: add a legacy irqdomain for 3ds_debugboard
  ARM: imx: pass gpio than irq number into mxc_expio_init
  ARM: imx: leave irq_base of wm8350_platform_data uninitialized
  dma: ipu: remove the use of ipu_platform_data
  ARM: imx: move irq_domain_add_legacy call into avic driver
  ARM: imx: move irq_domain_add_legacy call into tzic driver
  gpio/mxc: move irq_domain_add_legacy call into gpio driver
  ARM: imx: eliminate macro IRQ_GPIOx()
  ARM: imx: eliminate macro IOMUX_TO_IRQ()
  ARM: imx: eliminate macro IMX_GPIO_TO_IRQ()
2012-07-23 17:36:02 -07:00
Linus Torvalds
f1d2c07d33 arm-soc: board specific updates
These changes are all for individual board files. In the long run, those
 files will largely go away, and the amount of changes appears to be
 continuously decreasing, which is a good sign. This time around, changes
 are focused on tegra, omap and samsung.
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Merge tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc board specific updates from Arnd Bergmann:
 "These changes are all for individual board files.  In the long run,
  those files will largely go away, and the amount of changes appears to
  be continuously decreasing, which is a good sign.  This time around,
  changes are focused on tegra, omap and samsung."

Fix conflicts in arch/arm/mach-{omap2/common-board-devices.c,tegra/Makefile.boot}
as per the 'for-linus' branch.

* tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits)
  ARM: EXYNOS: Add leds status1 and status2 on Origen board
  ARM: S3C64XX: Mark most Cragganmore initdata devinitdata
  ARM: EXYNOS: Add missing .reserve field to SMDKC210
  ARM: EXYNOS: Add DRM device to SMDK4X12 board
  ARM: S3C64XX: Clean up after SPI driver platform data updates
  ARM: SAMSUNG: no need to set the value for clk_xusbxti when it is 24Mhz
  ARM: EXYNOS: Add framebuffer support for SMDK4X12
  ARM: EXYNOS: Add HSOTG support to SMDK4X12
  ARM: S5PV210: Add audio platform device in Goni board
  ARM: S5PV210: Add audio platform device in Aquila board
  ARM: EXYNOS: Add audio platform device in SMDKV310 board
  ARM: S3C64XX: Don't specify an irq_base for WM1192-EV1 board
  ARM: OMAP3: Fix omap3evm randconfig error introduced by VBUS support
  ARM: OMAP: board-omap4panda: MUX configuration for sys_nirq2
  ARM: OMAP: board-4430sdp: MUX configuration for sys_nirq2
  ARM: OMAP3530evm: set pendown_state and debounce time for ads7846
  ARM: omap3evm: enable VBUS switch for EHCI tranceiver
  ARM: OMAP3EVM: Adding USB internal LDOs board file
  ARM: OMAP3EVM: Add NAND flash definition
  ARM: OMAP3: cm-t35: add tvp5150 decoder support
  ...
2012-07-23 17:34:48 -07:00
Linus Torvalds
a17f29a5e9 arm-soc: defconfig updates
These are changes to the default configuration files, to account for
 kernel changes and new hardware.
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Merge tag 'defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc defconfig updates from Arnd Bergmann:
 "These are changes to the default configuration files, to account for
  kernel changes and new hardware."

* tag 'defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: exynos_defconfig: enable more platforms in defconfig
  ARM: imx_v4_v5_defconfig: update features
  ARM: imx_v6_v7_defconfig: update features
  ARM: mxs: defconfig: Enable CONFIG_COMMON_CLK_DEBUG
  ARM: mxs_defconfig: Enable RTC driver
  ARM: LPC32xx: Defconfig update
  ARM: mxs_defconfig: Let AUART driver be built by default
  ARM: mxs: Enable MACH_APX4DEVKIT
  ARM: mxs: Let GPMI driver be built by default
  ARM: tegra: defconfig updates
2012-07-23 16:33:28 -07:00
Linus Torvalds
f01b9b73f5 arm-soc: new SoC support
This adds support for three new SoC types:
 * The mvebu platform includes Marvell's Armada XP and Armada 370 chips,
   made by the mvebu business unit inside of Marvell. Since the same
   group also made the older but similar platforms we call "orion5x",
   "kirkwood", "mv78xx0" and "dove", we plan to move all of them into
   the mach-mvebu directory in the future.
 * socfpga is Altera's platform based on Cortex-A9 cores and a lot of
   FPGA space. This is similar to the Xilinx zynq platform we already
   support. The code is particularly clean, which is helped by the fact
   that the hardware doesn't do much besides the parts that are
   expected to get added in the FPGA.
 * The OMAP subarchitecture gains support for the latest generation,
   the OMAP5 based on the new Cortex-A15 core. Support is rather
   rudimentary for now, but will be extended in the future.
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Merge tag 'newsoc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull support for three new arm SoC types from Arnd Bergmann:

 - The mvebu platform includes Marvell's Armada XP and Armada 370 chips,
   made by the mvebu business unit inside of Marvell.  Since the same
   group also made the older but similar platforms we call "orion5x",
   "kirkwood", "mv78xx0" and "dove", we plan to move all of them into
   the mach-mvebu directory in the future.

 - socfpga is Altera's platform based on Cortex-A9 cores and a lot of
   FPGA space.  This is similar to the Xilinx zynq platform we already
   support.  The code is particularly clean, which is helped by the fact
   that the hardware doesn't do much besides the parts that are expected
   to get added in the FPGA.

 - The OMAP subarchitecture gains support for the latest generation, the
   OMAP5 based on the new Cortex-A15 core.  Support is rather
   rudimentary for now, but will be extended in the future.

* tag 'newsoc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (25 commits)
  ARM: socfpga: initial support for Altera's SOCFPGA platform
  arm: mvebu: generate DTBs for supported SoCs
  ARM: mvebu: MPIC: read number of interrupts from control register
  arm: mach-mvebu: add entry to MAINTAINERS
  arm: mach-mvebu: add compilation/configuration change
  arm: mach-mvebu: add defconfig
  arm: mach-mvebu: add documentation for new device tree bindings
  arm: mach-mvebu: add support for Armada 370 and Armada XP with DT
  arm: mach-mvebu: add source files
  arm: mach-mvebu: add header
  clocksource: time-armada-370-xp: Marvell Armada 370/XP SoC timer driver
  ARM: Kconfig update to support additional GPIOs in OMAP5
  ARM: OMAP5: Add the build support
  arm/dts: OMAP5: Add omap5 dts files
  ARM: OMAP5: board-generic: Add device tree support
  ARM: omap2+: board-generic: clean up the irq data from board file
  ARM: OMAP5: Add SMP support
  ARM: OMAP5: Add the WakeupGen IP updates
  ARM: OMAP5: l3: Add l3 error handler support for omap5
  ARM: OMAP5: gpmc: Update gpmc_init()
  ...

Conflicts:
	Documentation/devicetree/bindings/arm/omap/omap.txt
	arch/arm/mach-omap2/Makefile
	drivers/clocksource/Kconfig
	drivers/clocksource/Makefile
2012-07-23 16:31:31 -07:00
Linus Torvalds
fde7543027 arm-soc: cleanups, part 2
These omap cleanups have dependencies on earlier omap branches that in
 turn depend on other cleanups, so they could not go into the same
 branch.
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Merge tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc cleanups, part 2, from Arnd Bergmann:
 "These omap cleanups have dependencies on earlier omap branches that in
  turn depend on other cleanups, so they could not go into the same
  branch."

* tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: OMAP: sdrc: Fix the build break for OMAP4 only builds
  ARM: OMAP2+: dmtimer: cleanup fclk usage
  ARM: OMAP2+: Fix mismerge for omap_hwmod_get_main_clk() API
  ARM: OMAP2+: Remove unnecessary ifdef around __omap2_set_globals
  ARM: OMAP2+: am33xx: Change cpu_is_am33xx to soc_is_am33xx
  ARM: OMAP2+: am33xx: Make am33xx as a separate class
  ARM: OMAP2+: Move omap3 dpll ops to dpll3xxx.c
  ARM: OMAP2+: All OMAP2PLUS uses omap-device.o target so add one entry
  ARM: OMAP: dmtimer: use devm_ API and do some cleanup in probe()
  ARM: OMAP2+: hwmod code: add support to set dmadisable in hwmod framework
  ARM: OMAP2+: PRM/CM: Move the stubbed prm and cm functions to prcm.c file and make them __weak
  ARM: OMAP2+: hwmod: add omap_hwmod_get_main_clk() API
  ARM: OMAP3+: dpll: optimize noncore dpll locking logic
  ARM: OMAP3: control: add definition for CONTROL_CAMERA_PHY_CTRL
  ARM: OMAP2+: powerdomain code: Fix Wake-up power domain power status
  ARM: OMAP4: clockdomain/CM code: Update supported transition modes
  ARM: OMAP3/4: omap_hwmod: Add rstst_offs field to struct omap_hwmod_omap4_prcm
  ARM: OMAP2+: hwmod: Add new sysc_type3 into omap_hwmod required for am33xx
2012-07-23 16:22:12 -07:00
Linus Torvalds
1a4120bc10 arm-soc: timer updates
This contains two branches dealing with timers, one for the picoxcell
 platform that is now using DT with the platform-independent
 dw_apb_timer driver. The other change is for the omap-specific
 dmtimer driver.
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Merge tag 'timer' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc timer updates from Arnd Bergmann:
 "This contains two branches dealing with timers, one for the picoxcell
  platform that is now using DT with the platform-independent
  dw_apb_timer driver.  The other change is for the omap-specific
  dmtimer driver."

* tag 'timer' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  clocksource: dw_apb_timer: Add common DTS glue for dw_apb_timer
  ARM: OMAP2+: Simplify dmtimer clock aliases
  ARM: OMAP2+: Move dmtimer clock set function to dmtimer driver
  ARM: OMAP1: Fix dmtimer support
  ARM: OMAP: Add flag to indicate if a timer needs a manual reset
  ARM: OMAP: Remove timer function pointer for context loss counter
  ARM: OMAP: Remove loses_context variable from timer platform data
  ARM: OMAP2+: Fix external clock support for dmtimers
  ARM: OMAP2+: HWMOD: Correct timer device attributes
  ARM: OMAP: Add DMTIMER capability variable to represent timer features
  ARM: OMAP2+: Add dmtimer platform function to reserve systimers
  ARM: OMAP2+: Remove unused max number of timers definition
  ARM: OMAP: Remove unnecessary clk structure
2012-07-23 16:21:23 -07:00
Linus Torvalds
2fa379474f arm-soc: spi updates
These changes conceptually belong into the spi tree, but we decided to
 put them into arm-soc to better deal with interdependencies with other
 platform specific patches that are already there.
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Merge tag 'spi' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc spi updates from Arnd Bergmann:
 "These changes conceptually belong into the spi tree, but we decided to
  put them into arm-soc to better deal with interdependencies with other
  platform specific patches that are already there."

* tag 'spi' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  spi/s3c64xx: Expand S3C64XX_SPI_{DE,}ACT macros at call sites
  spi/s3c64xx: Convert to devm_request_and_ioremap()
  spi/s3c64xx: Put the /CS GPIO into output mode
  spi/s3c64xx: Fix handling of errors in gpio_request()
2012-07-23 16:20:43 -07:00
Linus Torvalds
4f2d658b2f arm-soc: device tree description updates
This branch contains two kinds of updates: Some platforms in the process
 of getting converted to device tree based booting, and the platform
 specific patches necessary for that are included here. Other platforms
 are already converted, so we just need to update the actual device
 tree source files and the binding documents to add support for new board
 and new drivers.
 In the future we will probably separate those into two branches, and
 in the long run, the plan is to move the device tree source files out
 of the kernel repository, but that has to wait until we have completed
 a much larger portion of the binding documents.
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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 description updates from Arnd Bergmann:
 "This branch contains two kinds of updates: Some platforms in the
  process of getting converted to device tree based booting, and the
  platform specific patches necessary for that are included here.

  Other platforms are already converted, so we just need to update the
  actual device tree source files and the binding documents to add
  support for new board and new drivers.

  In the future we will probably separate those into two branches, and
  in the long run, the plan is to move the device tree source files out
  of the kernel repository, but that has to wait until we have completed
  a much larger portion of the binding documents."

Fix up trivial conflicts in arch/arm/mach-imx/clk-imx6q.c due to newly
added clkdev registers next to a few removed unnecessary ones.

* tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (119 commits)
  ARM: LPC32xx: Add PWM to base dts file
  ARM: EXYNOS: mark the DMA channel binding for SPI as preliminary
  ARM: dts: Add nodes for spi controllers for SAMSUNG EXYNOS5 platforms
  ARM: EXYNOS: Enable platform support for SPI controllers for EXYNOS5
  ARM: EXYNOS: Add spi clock support for EXYNOS5
  ARM: dts: Add nodes for spi controllers for SAMSUNG EXYNOS4 platforms
  ARM: EXYNOS: Enable platform support for SPI controllers for EXYNOX4
  ARM: EXYNOS: Fix the incorrect hierarchy of spi controller bus clock
  ARM: ux500: Remove PMU platform registration when booting with DT
  ARM: ux500: Remove temporary snowball_of_platform_devs enablement structure
  ARM: ux500: Ensure vendor specific properties have the vendor's identifier
  pinctrl: pinctrl-nomadik: Append sleepmode property with vendor specific prefixes
  ARM: ux500: Move rtc-pl031 registration to Device Tree when enabled
  ARM: ux500: Enable the AB8500 RTC for all DT:ed DB8500 based devices
  ARM: ux500: Correctly reference IRQs supplied by the AB8500 from Device Tree
  ARM: ux500: Apply ab8500-debug node do the db8500 DT structure
  ARM: ux500: Add a ab8500-usb Device Tree node for db8500 based devices
  ARM: ux500: Add db8500 Device Tree node for misc/ab8500-pwm
  ARM: ux500: Add db8500 Device Tree node for ab8500-sysctrl
  ARM: ux500: Enable LED heartbeat functionality on Snowbal via DT
  ...
2012-07-23 16:17:43 -07:00
Linus Torvalds
e66d637134 arm-soc: samsung dma changes
Some platforms are not yet converted to use the dmaengine framework,
 including some of the samsung SoCs. In the meantime, we treat this
 as platform code and merge the patches through the arm-soc tree.
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Merge tag 'dma' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull samsung arm-soc dma changes from Arnd Bergmann:
 "Some platforms are not yet converted to use the dmaengine framework,
  including some of the samsung SoCs.  In the meantime, we treat this as
  platform code and merge the patches through the arm-soc tree."

* tag 'dma' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: SAMSUNG: Fix compiler warning in dma-ops.c file
  ASoC: follow the updated samsung DMA common operations
  spi/s3c64xx: Add the use of DMA config operation
  ARM: SAMSUNG: Add config() function in DMA common operations
2012-07-23 16:11:56 -07:00
Linus Torvalds
5e512d0785 arm-soc: soc-specific updates
This is stuff that does not fit well into another category and in
 particular is not related to a particular board. The largest part
 in here is extending the am33xx support in the omap platform.
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Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm soc-specific updates from Arnd Bergmann:
 "This is stuff that does not fit well into another category and in
  particular is not related to a particular board.  The largest part in
  here is extending the am33xx support in the omap platform."

Fix up trivial conflicts in arch/arm/mach-{imx/mach-mx35_3ds.c, tegra/Makefile}

* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (74 commits)
  ARM: LPC32xx: Add PWM support
  ARM: LPC32xx: Add PWM clock
  ARM: LPC32xx: Set system serial based on cpu unique id
  ARM: vexpress: Config option for early printk console
  ARM: vexpress: Add Device Tree for V2P-CA15_CA7 core tile
  ARM: vexpress: Convert V2P-CA15 Device Tree to 64 bit addresses
  ARM: vexpress: Add fixed regulator for SMSC
  ARM: vexpress: Add missing SP804 interrupt in motherboard's DTS files
  ARM: vexpress: Initial common clock support
  ARM: SAMSUNG: Introduce Kconfig variable for Samsung custom clk API
  ARM: EXYNOS: Add missing static storage class specifier in pmu.c file
  ARM: EXYNOS: Make combiner_init function static
  ARM: EXYNOS: Update HSOTG PHY clock setting for EXYNOS4X12
  ARM: versatile: Make plat-versatile clock optional
  ARM: vexpress: Check master site in daughterboard's sysctl operations
  ARM: vexpress: remove automatic errata workaround selection
  ARM: LPC32xx: Adjust to pl08x DMA interface changes
  ARM: EXYNOS: Clear SYS_WDTRESET bit to use watchdog reset
  ARM: imx: fix mx51 ehci setup errors
  ARM: imx: make ehci power/oc polarities configurable
  ...
2012-07-23 16:08:40 -07:00
Linus Torvalds
451ce7f9cf arm-soc: general cleanups
These are all boring changes, moving stuff around or renaming things
 mostly, and also getting rid of stuff that is duplicate or should
 not be there to start with. Platform-wise this is all over the place,
 mainly omap, samsung, at91, imx and tegra.
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Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull general arm-soc cleanups from Arnd Bergmann:
 "These are all boring changes, moving stuff around or renaming things
  mostly, and also getting rid of stuff that is duplicate or should not
  be there to start with.  Platform-wise this is all over the place,
  mainly omap, samsung, at91, imx and tegra."

Resolve trivial conflict in arch/arm/mach-omap2/clockdomains3xxx_data.c

* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (67 commits)
  ARM: clps711x: Remove the setting of the time
  ARM: clps711x: Removed superfluous transform virt_to_bus and related functions
  ARM: clps711x/p720t: Replace __initcall by .init_early call
  ARM: S3C24XX: Remove unused GPIO definitions for Openmoko GTA02 board
  ARM: S3C24XX: Remove unused GPIO definitions for port J
  ARM: S3C24XX: Remove unused GPA, GPE, GPH bank GPIO aliases
  ARM: S3C24XX: Convert the touchscreen setup code to common GPIO API
  ARM: S3C24XX: Convert the PM code to gpiolib API
  ARM: S3C24XX: Convert QT2410 board file to the gpiolib API
  ARM: S3C24XX: Convert SMDK board file to the gpiolib API
  ARM: S3C24XX: Free the backlight gpio requested in Mini2440 board code
  ARM: imx: remove unused pdata from device macros
  ARM: imx: Kconfig: Remove IMX_HAVE_PLATFORM_IMX_SSI from MACH_MX25_3DS
  ARM: at91: fix new build errors
  ARM: at91: add AIC5 support
  ARM: at91: remove mach/irqs.h
  ARM: at91: sparse irq support
  ARM: at91: at91 based machines specify their own irq handler at run time
  ARM: at91: remove static irq priorities for sam9x5
  ARM: at91: add of irq priorities support
  ...
2012-07-23 16:04:15 -07:00
Linus Torvalds
b85c14fb83 arm-soc: non-critical bug fixes
These were submitted as bug fixes before v3.5 but not considered
 important enough to be included in it.
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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 Arnd Bergmann:
 "These were submitted as bug fixes before v3.5 but not considered
  important enough to be included in it."

* tag 'fixes-non-critical' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits)
  ARM:vt8500: Convert to use .restart and remove arch_reset()
  ARM: davinci: da8xx: fix interrupt handling
  ARM: OMAP2+: fix CONFIG_CPU_IDLE dependency on CONFIG_PM
  ARM: mxs/tx28: fix odd include
  ARM: OMAP: remove unused cpu detection macros
  ARM: OMAP: fix typos related to OMAP330
  ARM: OMAP7XX:  Remove omap730.h and omap850.h
  ARM: OMAP2+: fix naming collision of variable nr_irqs
  ARM: OMAP: omap2plus_defconfig: Enable EXT4 support
  ARM: OMAP depends on MMU
  arm: omap3: am35x: Set proper powerdomain states
  ARM: OMAP AM35x: clockdomain data: Fix clockdomain dependencies
  ARM: OMAP AM35x: EMAC/MDIO integration: Add Davinci EMAC/MDIO hwmod support
  ARM: OMAP: AM35xx: fix UART4 softreset
  ARM: OMAP AM35xx: clock and hwmod data: fix UART4 data
  ARM: OMAP AM35xx: clock and hwmod data: fix AM35xx HSOTGUSB hwmod
  ARM: OMAP: Fix dts files w/ status property: "disable" -> "disabled"
  ARM: OMAP: beagle: Set USB Host Port 1 to OMAP_USBHS_PORT_MODE_UNUSED
  ARM: OMAP2: twl-common: Fix compiler warning
  ARM: OMAP: fix the ads7846 init code
  ...
2012-07-23 16:01:01 -07:00
Linus Torvalds
ce447f34a7 Change the default amount of eraseblocks which UBI reserves for bad block
handling from 1% to 2%, because 1% does not meet most modern flashes
 requirements. 1% was good enough in the past for old high-quality SLCs, but
 nowadays 2% is much more appropriate.
 
 Other changes are clean-ups.
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Merge tag 'upstream-3.6-rc1' of git://git.infradead.org/linux-ubi

Pull UBI changes from Artem Bityutskiy:
 "Change the default amount of eraseblocks which UBI reserves for bad
  block handling from 1% to 2%, because 1% does not meet most modern
  flash requirements.  1% was good enough in the past for old
  high-quality SLCs, but nowadays 2% is much more appropriate.:

Other changes are clean-ups.

* tag 'upstream-3.6-rc1' of git://git.infradead.org/linux-ubi:
  UBI: harmonize the update of ubi->beb_rsvd_pebs
  UBI: trivial: fix comment of ubi_calculate_reserved function
  UBI: fix spelling of detach in debug output
  UBI: Change the default percentage of reserved PEB
2012-07-23 15:53:06 -07:00
Linus Torvalds
93912fe69d * Added another debugfs knob for forcing UBIFS R/O mode without flushing caches
or finishing commit or any other I/O operation. I've originally added this
   knob in order to reproduce the free space fixup bug (see c672793) on nandsim.
   Without this knob I would have to do real power-cuts, which would make
   debugging much harder. Then I've decided to keep this knob because it is also
   useful for UBIFS power-cut recovery end error-paths testing.
 * Well-spotted fix from Julia. This bug did not cause real troubles for
   UBIFS, but nevertheless it could cause issues for someone trying to modify
   the orphans handling code. Kudos to coccinelle!
 * Minor cleanups.
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Merge tag 'upstream-3.6-rc1' of git://git.infradead.org/linux-ubifs

Pull UBIFS updates from Artem Bityutskiy:

 - Added another debugfs knob for forcing UBIFS R/O mode without
   flushing caches or finishing commit or any other I/O operation.  I've
   originally added this knob in order to reproduce the free space fixup
   bug (see commit c6727932cf: "UBIFS: fix a bug in empty space
   fix-up") on nandsim.

   Without this knob I would have to do real power-cuts, which would
   make debugging much harder.  Then I've decided to keep this knob
   because it is also useful for UBIFS power-cut recovery end
   error-paths testing.

 - Well-spotted fix from Julia.  This bug did not cause real troubles
   for UBIFS, but nevertheless it could cause issues for someone trying
   to modify the orphans handling code.  Kudos to coccinelle!

 - Minor cleanups.

* tag 'upstream-3.6-rc1' of git://git.infradead.org/linux-ubifs:
  UBIFS: remove invalid reference to list iterator variable
  UBIFS: simplify reply code a bit
  UBIFS: add debugfs knob to switch to R/O mode
  UBIFS: fix compilation warning
2012-07-23 15:50:52 -07:00
J. Bruce Fields
0ec4f431eb locks: fix checking of fcntl_setlease argument
The only checks of the long argument passed to fcntl(fd,F_SETLEASE,.)
are done after converting the long to an int.  Thus some illegal values
may be let through and cause problems in later code.

[ They actually *don't* cause problems in mainline, as of Dave Jones's
  commit 8d657eb3b4 "Remove easily user-triggerable BUG from
  generic_setlease", but we should fix this anyway.  And this patch will
  be necessary to fix real bugs on earlier kernels. ]

Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-23 12:46:01 -07:00
Linus Torvalds
a66d2c8f7e Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull the big VFS changes from Al Viro:
 "This one is *big* and changes quite a few things around VFS.  What's in there:

   - the first of two really major architecture changes - death to open
     intents.

     The former is finally there; it was very long in making, but with
     Miklos getting through really hard and messy final push in
     fs/namei.c, we finally have it.  Unlike his variant, this one
     doesn't introduce struct opendata; what we have instead is
     ->atomic_open() taking preallocated struct file * and passing
     everything via its fields.

     Instead of returning struct file *, it returns -E...  on error, 0
     on success and 1 in "deal with it yourself" case (e.g.  symlink
     found on server, etc.).

     See comments before fs/namei.c:atomic_open().  That made a lot of
     goodies finally possible and quite a few are in that pile:
     ->lookup(), ->d_revalidate() and ->create() do not get struct
     nameidata * anymore; ->lookup() and ->d_revalidate() get lookup
     flags instead, ->create() gets "do we want it exclusive" flag.

     With the introduction of new helper (kern_path_locked()) we are rid
     of all struct nameidata instances outside of fs/namei.c; it's still
     visible in namei.h, but not for long.  Come the next cycle,
     declaration will move either to fs/internal.h or to fs/namei.c
     itself.  [me, miklos, hch]

   - The second major change: behaviour of final fput().  Now we have
     __fput() done without any locks held by caller *and* not from deep
     in call stack.

     That obviously lifts a lot of constraints on the locking in there.
     Moreover, it's legal now to call fput() from atomic contexts (which
     has immediately simplified life for aio.c).  We also don't need
     anti-recursion logics in __scm_destroy() anymore.

     There is a price, though - the damn thing has become partially
     asynchronous.  For fput() from normal process we are guaranteed
     that pending __fput() will be done before the caller returns to
     userland, exits or gets stopped for ptrace.

     For kernel threads and atomic contexts it's done via
     schedule_work(), so theoretically we might need a way to make sure
     it's finished; so far only one such place had been found, but there
     might be more.

     There's flush_delayed_fput() (do all pending __fput()) and there's
     __fput_sync() (fput() analog doing __fput() immediately).  I hope
     we won't need them often; see warnings in fs/file_table.c for
     details.  [me, based on task_work series from Oleg merged last
     cycle]

   - sync series from Jan

   - large part of "death to sync_supers()" work from Artem; the only
     bits missing here are exofs and ext4 ones.  As far as I understand,
     those are going via the exofs and ext4 trees resp.; once they are
     in, we can put ->write_super() to the rest, along with the thread
     calling it.

   - preparatory bits from unionmount series (from dhowells).

   - assorted cleanups and fixes all over the place, as usual.

  This is not the last pile for this cycle; there's at least jlayton's
  ESTALE work and fsfreeze series (the latter - in dire need of fixes,
  so I'm not sure it'll make the cut this cycle).  I'll probably throw
  symlink/hardlink restrictions stuff from Kees into the next pile, too.
  Plus there's a lot of misc patches I hadn't thrown into that one -
  it's large enough as it is..."

* 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (127 commits)
  ext4: switch EXT4_IOC_RESIZE_FS to mnt_want_write_file()
  btrfs: switch btrfs_ioctl_balance() to mnt_want_write_file()
  switch dentry_open() to struct path, make it grab references itself
  spufs: shift dget/mntget towards dentry_open()
  zoran: don't bother with struct file * in zoran_map
  ecryptfs: don't reinvent the wheels, please - use struct completion
  don't expose I_NEW inodes via dentry->d_inode
  tidy up namei.c a bit
  unobfuscate follow_up() a bit
  ext3: pass custom EOF to generic_file_llseek_size()
  ext4: use core vfs llseek code for dir seeks
  vfs: allow custom EOF in generic_file_llseek code
  vfs: Avoid unnecessary WB_SYNC_NONE writeback during sys_sync and reorder sync passes
  vfs: Remove unnecessary flushing of block devices
  vfs: Make sys_sync writeout also block device inodes
  vfs: Create function for iterating over block devices
  vfs: Reorder operations during sys_sync
  quota: Move quota syncing to ->sync_fs method
  quota: Split dquot_quota_sync() to writeback and cache flushing part
  vfs: Move noop_backing_dev_info check from sync into writeback
  ...
2012-07-23 12:27:27 -07:00
Linus Torvalds
a6be1fcbc5 MMC highlights for 3.6:
Core:
  - Rename cd-gpio to slot-gpio and extend it to support more
    slot GPIO functions, such as write-protect.
  - Add a function to get regulators (Vdd and Vccq) for a host.
 
 Drivers:
  - sdhci-pxav2, sdhci-pxav3: Add device tree support.
  - sdhi: Add device tree support.
  - sh_mmcif: Add support for regulators, device tree, slot-gpio.
  - tmio: Add regulator support, use slot-gpio.
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Merge tag 'mmc-merge-for-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

Pull MMC updates from Chris Ball:
 "MMC highlights for 3.6:

  Core:
   - Rename cd-gpio to slot-gpio and extend it to support more slot GPIO
     functions, such as write-protect.
   - Add a function to get regulators (Vdd and Vccq) for a host.

  Drivers:
   - sdhci-pxav2, sdhci-pxav3: Add device tree support.
   - sdhi: Add device tree support.
   - sh_mmcif: Add support for regulators, device tree, slot-gpio.
   - tmio: Add regulator support, use slot-gpio."

* tag 'mmc-merge-for-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (62 commits)
  mmc: sdhci-dove: Prepare for common clock framework
  mmc: sdhci-dove: Add SDHCI_QUIRK_NO_HISPD_BIT
  mmc: omap_hsmmc: ensure probe returns error upon resource failure
  mmc: mxs-mmc: Add wp-inverted property
  mmc: esdhc: Fix DMA_MASK to not break mx25 DMA access
  mmc: core: reset signal voltage on power up
  mmc: sd: Fix sd current limit setting
  mmc: omap_hsmmc: add clk_prepare and clk_unprepare
  mmc: sdhci: When a UHS switch fails, cycle power if regulator is used
  mmc: atmel-mci: modify CLKDIV displaying in debugfs
  mmc: atmel-mci: fix incorrect setting of host->data to NULL
  mmc: sdhci: poll for card even when card is logically unremovable
  mmc: sdhci: Introduce new flag SDHCI_USING_RETUNING_TIMER
  mmc: sdio: Change pr_warning to pr_warn_ratelimited
  mmc: core: Simplify and fix for SD switch processing
  mmc: sdhci: restore host settings when card is removed
  mmc: sdhci: fix incorrect command used in tuning
  mmc: sdhci-pci: CaFe has broken card detection
  mmc: sdhci: Report failure reasons for all cases in sdhci_add_host()
  mmc: s3cmci: Convert s3cmci driver to gpiolib API
  ...
2012-07-22 16:36:08 -07:00
Linus Torvalds
5b160bd426 Merge branch 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86/mce changes from Ingo Molnar:
 "This tree improves the AMD thresholding bank code and includes a
  memory fault signal handling fixlet."

* 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce: Fix siginfo_t->si_addr value for non-recoverable memory faults
  x86, MCE, AMD: Update copyrights and boilerplate
  x86, MCE, AMD: Give proper names to the thresholding banks
  x86, MCE, AMD: Make error_count read only
  x86, MCE, AMD: Cleanup reading of error_count
  x86, MCE, AMD: Print decimal thresholding values
  x86, MCE, AMD: Move shared bank to node descriptor
  x86, MCE, AMD: Remove local_allocate_... wrapper
  x86, MCE, AMD: Remove shared banks sysfs linking
  x86, amd_nb: Export model 0x10 and later PCI id
2012-07-22 16:07:45 -07:00
Sebastian Hesselbarth
30b87c60e9 mmc: sdhci-dove: Prepare for common clock framework
As mach-dove is moving towards common clock framework prepare
the sdhci driver to grab its clock.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@googlemail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-07-22 16:42:48 -04:00
Sebastian Hesselbarth
a9ca1d5477 mmc: sdhci-dove: Add SDHCI_QUIRK_NO_HISPD_BIT
The sdio controller on dove doesn't have a bit to indicate
high-speed. With the quirk set it fixes accessing high-speed
sdcards.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@googlemail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-07-22 16:42:47 -04:00
Kevin Hilman
9c17d08ca1 mmc: omap_hsmmc: ensure probe returns error upon resource failure
If platform_get_resource_by_name() fails, driver probe is aborted an
should return an error so the driver is not bound to the device.

However, in the current error path of platform_get_resource_by_name(),
probe returns zero since the return value (ret) is not properly set.
With a zero return value, the driver core assumes probe was successful
and will bind the driver to the device.

Fix this by ensuring that probe returns an error code in this failure
path.

Signed-off-by: Kevin Hilman <khilman@ti.com>
Acked-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-07-22 16:42:47 -04:00
Marek Vasut
b6e76f10af mmc: mxs-mmc: Add wp-inverted property
The write-protect GPIO is inverted on some boards. Handle such case.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-07-22 16:42:46 -04:00
Wilson Callan
9a0985b78d mmc: esdhc: Fix DMA_MASK to not break mx25 DMA access
Patch to not set reserved bits in i.MX25 PROCTL register.  DMA stops
working if those bits get set.

Signed-off-by: Wilson Callan <wilson.callan@savantsystems.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-07-22 16:42:30 -04:00
Linus Torvalds
7100e505b7 Power management updates for 3.6
* ACPI conversion to PM handling based on struct dev_pm_ops.
 * Conversion of a number of platform drivers to PM handling based on struct
   dev_pm_ops and removal of empty legacy PM callbacks from a couple of PCI
   drivers.
 * Suspend-to-both for in-kernel hibernation from Bojan Smojver.
 * cpuidle fixes and cleanups from ShuoX Liu, Daniel Lezcano and Preeti U Murthy.
 * cpufreq bug fixes from Jonghwa Lee and Stephen Boyd.
 * Suspend and hibernate fixes from Srivatsa S. Bhat and Colin Cross.
 * Generic PM domains framework updates.
 * RTC CMOS wakeup signaling update from Paul Fox.
 * sparse warnings fixes from Sachin Kamat.
 * Build warnings fixes for the generic PM domains framework and PM sysfs code.
 * sysfs switch for printing device suspend times from Sameer Nanda.
 * Documentation fix from Oskar Schirmer.
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Merge tag 'pm-for-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:

 - ACPI conversion to PM handling based on struct dev_pm_ops.
 - Conversion of a number of platform drivers to PM handling based on
   struct dev_pm_ops and removal of empty legacy PM callbacks from a
   couple of PCI drivers.
 - Suspend-to-both for in-kernel hibernation from Bojan Smojver.
 - cpuidle fixes and cleanups from ShuoX Liu, Daniel Lezcano and Preeti
   Murthy.
 - cpufreq bug fixes from Jonghwa Lee and Stephen Boyd.
 - Suspend and hibernate fixes from Srivatsa Bhat and Colin Cross.
 - Generic PM domains framework updates.
 - RTC CMOS wakeup signaling update from Paul Fox.
 - sparse warnings fixes from Sachin Kamat.
 - Build warnings fixes for the generic PM domains framework and PM
   sysfs code.
 - sysfs switch for printing device suspend times from Sameer Nanda.
 - Documentation fix from Oskar Schirmer.

* tag 'pm-for-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (70 commits)
  cpufreq: Fix sysfs deadlock with concurrent hotplug/frequency switch
  EXYNOS: bugfix on retrieving old_index from freqs.old
  PM / Sleep: call early resume handlers when suspend_noirq fails
  PM / QoS: Use NULL pointer instead of plain integer in qos.c
  PM / QoS: Use NULL pointer instead of plain integer in pm_qos.h
  PM / Sleep: Require CAP_BLOCK_SUSPEND to use wake_lock/wake_unlock
  PM / Sleep: Add missing static storage class specifiers in main.c
  cpuilde / ACPI: remove time from acpi_processor_cx structure
  cpuidle / ACPI: remove usage from acpi_processor_cx structure
  cpuidle / ACPI : remove latency_ticks from acpi_processor_cx structure
  rtc-cmos: report wakeups from interrupt handler
  PM / Sleep: Fix build warning in sysfs.c for CONFIG_PM_SLEEP unset
  PM / Domains: Fix build warning for CONFIG_PM_RUNTIME unset
  olpc-xo15-sci: Use struct dev_pm_ops for power management
  PM / Domains: Replace plain integer with NULL pointer in domain.c file
  PM / Domains: Add missing static storage class specifier in domain.c file
  PM / crypto / ux500: Use struct dev_pm_ops for power management
  PM / IPMI: Remove empty legacy PCI PM callbacks
  tpm_nsc: Use struct dev_pm_ops for power management
  tpm_tis: Use struct dev_pm_ops for power management
  ...
2012-07-22 13:36:52 -07:00
Linus Torvalds
cb47c1831f Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull target updates from Nicholas Bellinger:
 "There have been lots of work in a number of areas this past round.
  The highlights include:

   - Break out target_core_cdb.c emulation into SPC/SBC ops (hch)
   - Add a parse_cdb method to target backend drivers (hch)
   - Move sync_cache + write_same + unmap into spc_ops (hch)
   - Use target_execute_cmd for WRITEs in iscsi_target + srpt (hch)
   - Offload WRITE I/O backend submission in tcm_qla2xxx + tcm_fc (hch +
     nab)
   - Refactor core_update_device_list_for_node() into enable/disable
     funcs (agrover)
   - Replace the TCM processing thread with a TMR work queue (hch)
   - Fix regression in transport_add_device_to_core_hba from TMR
     conversion (DanC)
   - Remove racy, now-redundant check of sess_tearing_down with qla2xxx
     (roland)
   - Add range checking, fix reading of data len + possible underflow in
     UNMAP (roland)
   - Allow for target_submit_cmd() returning errors + convert fabrics
     (roland + nab)
   - Drop bogus struct file usage for iSCSI/SCTP (viro)"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (54 commits)
  iscsi-target: Drop bogus struct file usage for iSCSI/SCTP
  target: NULL dereference on error path
  target: Allow for target_submit_cmd() returning errors
  target: Check number of unmap descriptors against our limit
  target: Fix possible integer underflow in UNMAP emulation
  target: Fix reading of data length fields for UNMAP commands
  target: Add range checking to UNMAP emulation
  target: Add generation of LOGICAL BLOCK ADDRESS OUT OF RANGE
  target: Make unnecessarily global se_dev_align_max_sectors() static
  target: Remove se_session.sess_wait_list
  qla2xxx: Remove racy, now-redundant check of sess_tearing_down
  target: Check sess_tearing_down in target_get_sess_cmd()
  sbp-target: Consolidate duplicated error path code in sbp_handle_command()
  target: Un-export target_get_sess_cmd()
  qla2xxx: Get rid of redundant qla_tgt_sess.tearing_down
  target: Make core_disable_device_list_for_node use pre-refactoring lock ordering
  target: refactor core_update_device_list_for_node()
  target: Eliminate else using boolean logic
  target: Misc retval cleanups
  target: Remove hba param from core_dev_add_lun
  ...
2012-07-22 13:31:57 -07:00
Linus Torvalds
4d460fd3ab regulator: Updates for 3.6
Lots and lots of fixes from Axel and some others here, plus some framework
 enhancements which continue the theme of factoring code out of the drivers
 and into the core.
 
 - Initial framework support for GPIO controlled enable signals, saving a
   bunch of code in drivers.
 - Move fixed regulator enable time and voltage mapping table
   specifications to data.
 - Used some of the recent framework enhancements to make voltage change
   notifications more useful, passing the voltage in as an argument to the
   notification.
 - Fixed the pattern used for finding individual regulators on a device
   to not rely on the node name, supporting the use of multiple PMICs of
   the same type in the system.
 - New drivers for Maxim MAX77686, TI LP872x and LP8788, Samsung S2MPS11,
   and Wolfson Arizona microphone supplies and LDOs.
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Merge tag 'regulator-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "Lots and lots of fixes from Axel and some others here, plus some
  framework enhancements which continue the theme of factoring code out
  of the drivers and into the core.

   - Initial framework support for GPIO controlled enable signals,
     saving a bunch of code in drivers.
   - Move fixed regulator enable time and voltage mapping table
     specifications to data.
   - Used some of the recent framework enhancements to make voltage
     change notifications more useful, passing the voltage in as an
     argument to the notification.
   - Fixed the pattern used for finding individual regulators on a
     device to not rely on the node name, supporting the use of multiple
     PMICs of the same type in the system.
   - New drivers for Maxim MAX77686, TI LP872x and LP8788, Samsung
     S2MPS11, and Wolfson Arizona microphone supplies and LDOs."

* tag 'regulator-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (176 commits)
  regulator: add new lp8788 regulator driver
  regulator: mc13xxx: Remove extern function declaration for mc13xxx_sw_regulator
  regulator: tps65910: set input_supply on desc unconditionally
  regulator: palmas: Fix calcuating selector in palmas_map_voltage_smps
  regulator: lp872x: Simplify implementation of lp872x_find_regulator_init_data()
  regulator: twl: Fix list_voltate for twl6030ldo_ops
  regulator: twl: Convert twl6030ldo_ops to [get|set]_voltage_sel
  regulator: twl: Fix the formula to calculate vsel and voltage for twl6030ldo
  regulator: s5m8767: Properly handle gpio_request failure
  regulator: max8997: Properly handle gpio_request failure
  regulator: tps62360: use devm_* for gpio request
  regulator: tps6586x: add support for input supply
  regulator: tps65217: Add device tree support
  regulator: aat2870: Remove unused min_uV and max_uV from struct aat2870_regulator
  regulator: aat2870: Convert to regulator_list_voltage_table
  regulator: da9052: initialize of_node param for regulator register
  regulator: Add REGULATOR_STATUS_UNDEFINED.
  regulator: Fix a typo in regulator_mode_to_status() core function.
  regulator: s2mps11: Use sec_reg_write rather than sec_reg_update when mask is 0xff
  regulator: s2mps11: Fix wrong setting for config.dev
  ...
2012-07-22 13:05:23 -07:00
Linus Torvalds
7cd58b0a3b regmap: Updates for 3.6
A few fixes plus a few features, the most generally useful thing being
 the register paging support which can be used by quite a few devices:
 
 - Support for wake IRQs in regmap-irq
 - Support for register paging
 - Support for explicitly specified endianness, mostly for MMIO.
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Merge tag 'regmap-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap updates from Mark Brown:
 "A few fixes plus a few features, the most generally useful thing being
  the register paging support which can be used by quite a few devices:

   - Support for wake IRQs in regmap-irq
   - Support for register paging
   - Support for explicitly specified endianness, mostly for MMIO."

* tag 'regmap-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: Fix incorrect arguments to kzalloc() call
  regmap: Add hook for printk logging for debugging during early init
  regmap: Fix work_buf switching for page update during virtual range access.
  regmap: Add support for register indirect addressing.
  regmap: Move lock out from internal function _regmap_update_bits().
  regmap: mmio: Staticize regmap_mmio_gen_context()
  regmap: Remove warning on stubbed dev_get_regmap()
  regmap: Implement support for wake IRQs
  regmap: Don't try to map non-existant IRQs
  regmap: Constify regmap_irq_chip
  regmap: mmio: request native endian formatting
  regmap: allow busses to request formatting with specific endianness
2012-07-22 13:03:14 -07:00
Al Viro
8cae6f7158 ext4: switch EXT4_IOC_RESIZE_FS to mnt_want_write_file()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-23 00:01:55 +04:00
Al Viro
11e62a8fab btrfs: switch btrfs_ioctl_balance() to mnt_want_write_file()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-23 00:01:43 +04:00
Al Viro
765927b2d5 switch dentry_open() to struct path, make it grab references itself
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-23 00:01:29 +04:00
Al Viro
bf349a4470 spufs: shift dget/mntget towards dentry_open()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-23 00:01:17 +04:00
Al Viro
3b6456d2c3 zoran: don't bother with struct file * in zoran_map
all we need it for is file->private_data, which is assign-once, already
assigned by that point and, incidentally, its value is already in use
by zoran ->mmap() anyway.  So just store that pointer instead...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-23 00:01:10 +04:00
Al Viro
3b8b487114 ecryptfs: don't reinvent the wheels, please - use struct completion
... and keep the sodding requests on stack - they are small enough.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-23 00:01:02 +04:00
Al Viro
8fc37ec54c don't expose I_NEW inodes via dentry->d_inode
d_instantiate(dentry, inode);
	unlock_new_inode(inode);

is a bad idea; do it the other way round...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-23 00:00:58 +04:00
Al Viro
32a7991b6a tidy up namei.c a bit
locking/unlocking for rcu walk taken to a couple of inline helpers

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-23 00:00:55 +04:00
Al Viro
3c0a616368 unobfuscate follow_up() a bit
really convoluted test in there has grown up during struct mount
introduction; what it checks is that we'd reached the root of
mount tree.
2012-07-23 00:00:45 +04:00
Eric Sandeen
de9b942202 ext3: pass custom EOF to generic_file_llseek_size()
Use the new custom EOF argument to generic_file_llseek_size so
that SEEK_END will go to the max hash value for htree dirs
in ext3 rather than to i_size_read()

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-23 00:00:30 +04:00
Eric Sandeen
ec7268ce21 ext4: use core vfs llseek code for dir seeks
Use the new functionality in generic_file_llseek_size() to
accept a custom EOF position, and un-cut-and-paste all the
vfs llseek code from ext4.

Also fix up comments on ext4_llseek() to reflect reality.

Signed-off-by: Eric Sandeen <sandeen@redaht.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-23 00:00:28 +04:00
Eric Sandeen
e8b96eb503 vfs: allow custom EOF in generic_file_llseek code
For ext3/4 htree directories, using the vfs llseek function with
SEEK_END goes to i_size like for any other file, but in reality
we want the maximum possible hash value.  Recent changes
in ext4 have cut & pasted generic_file_llseek() back into fs/ext4/dir.c,
but replicating this core code seems like a bad idea, especially
since the copy has already diverged from the vfs.

This patch updates generic_file_llseek_size to accept
both a custom maximum offset, and a custom EOF position.  With this
in place, ext4_dir_llseek can pass in the appropriate maximum hash
position for both maxsize and eof, and get what it wants.

As far as I know, this does not fix any bugs - nfs in the kernel
doesn't use SEEK_END, and I don't know of any user who does.  But
some ext4 folks seem keen on doing the right thing here, and I can't
really argue.

(Patch also fixes up some comments slightly)

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-23 00:00:15 +04:00
Jan Kara
4ea425b63a vfs: Avoid unnecessary WB_SYNC_NONE writeback during sys_sync and reorder sync passes
wakeup_flusher_threads(0) will queue work doing complete writeback for each
flusher thread. Thus there is not much point in submitting another work doing
full inode WB_SYNC_NONE writeback by writeback_inodes_sb().

After this change it does not make sense to call nonblocking ->sync_fs and
block device flush before calling sync_inodes_sb() because
wakeup_flusher_threads() is completely asynchronous and thus these functions
would be called in parallel with inode writeback running which will effectively
void any work they do. So we move sync_inodes_sb() call before these two
functions.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-22 23:59:01 +04:00
Jan Kara
d0e91b13eb vfs: Remove unnecessary flushing of block devices
It is not necessary to write block devices twice. The reason why we first did
flush and then proper sync is that
  for_each_bdev() {
    write_bdev()
    wait_for_completion()
  }
is much slower than
  for_each_bdev()
    write_bdev()
  for_each_bdev()
    wait_for_completion()
when there is bigger amount of data. But as is seen in the above, there's no real
need to scan pages and submit them twice. We just need to separate the submission
and waiting part. This patch does that.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-22 23:58:53 +04:00
Jan Kara
a8c7176b6d vfs: Make sys_sync writeout also block device inodes
In case block device does not have filesystem mounted on it, sys_sync will just
ignore it and doesn't writeout its dirty pages. This is because writeback code
avoids writing inodes from superblock without backing device and
blockdev_superblock is such a superblock.  Since it's unexpected that sync
doesn't writeout dirty data for block devices be nice to users and change the
behavior to do so. So now we iterate over all block devices on blockdev_super
instead of iterating over all superblocks when syncing block devices.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-22 23:58:49 +04:00
Jan Kara
5c0d6b60a0 vfs: Create function for iterating over block devices
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-22 23:58:45 +04:00
Jan Kara
b3de653105 vfs: Reorder operations during sys_sync
Change the order of operations during sync from

for_each_sb {
        writeback_inodes_sb();
        sync_fs(nowait);
        __sync_blockdev(nowait);
}
for_each_sb {
        sync_inodes_sb();
        sync_fs(wait);
        __sync_blockdev(wait);
}

to

for_each_sb
        writeback_inodes_sb();
for_each_sb
        sync_fs(nowait);
for_each_sb
        __sync_blockdev(nowait);
for_each_sb
        sync_inodes_sb();
for_each_sb
        sync_fs(wait);
for_each_sb
        __sync_blockdev(wait);

This is a preparation for the following patches in this series.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-22 23:58:41 +04:00
Jan Kara
a117782571 quota: Move quota syncing to ->sync_fs method
Since the moment writes to quota files are using block device page cache and
space for quota structures is reserved at the moment they are first accessed we
have no reason to sync quota before inode writeback. In fact this order is now
only harmful since quota information can easily change during inode writeback
(either because conversion of delayed-allocated extents or simply because of
allocation of new blocks for simple filesystems not using page_mkwrite).

So move syncing of quota information after writeback of inodes into ->sync_fs
method. This way we do not have to use ->quota_sync callback which is primarily
intended for use by quotactl syscall anyway and we get rid of calling
->sync_fs() twice unnecessarily. We skip quota syncing for OCFS2 since it does
proper quota journalling in all cases (unlike ext3, ext4, and reiserfs which
also support legacy non-journalled quotas) and thus there are no dirty quota
structures.

CC: "Theodore Ts'o" <tytso@mit.edu>
CC: Joel Becker <jlbec@evilplan.org>
CC: reiserfs-devel@vger.kernel.org
Acked-by: Steven Whitehouse <swhiteho@redhat.com>
Acked-by: Dave Kleikamp <shaggy@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-22 23:58:34 +04:00
Jan Kara
ceed17236a quota: Split dquot_quota_sync() to writeback and cache flushing part
Split off part of dquot_quota_sync() which writes dquots into a quota file
to a separate function. In the next patch we will use the function from
filesystems and we do not want to abuse ->quota_sync quotactl callback more
than necessary.

Acked-by: Steven Whitehouse <swhiteho@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-22 23:58:19 +04:00
Jan Kara
6eedc70150 vfs: Move noop_backing_dev_info check from sync into writeback
In principle, a filesystem may want to have ->sync_fs() called during sync(1)
although it does not have a bdi (i.e. s_bdi is set to noop_backing_dev_info).
Only writeback code really needs bdi set to something reasonable. So move the
checks where they are more logical.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-22 23:58:18 +04:00
Artem Bityutskiy
9e9ad5f408 fs/ufs: get rid of write_super
This patch makes UFS stop using the VFS '->write_super()' method along with
the 's_dirt' superblock flag, because they are on their way out.

The way we implement this is that we schedule a delay job instead relying on
's_dirt' and '->write_super()'.

The whole "superblock write-out" VFS infrastructure is served by the
'sync_supers()' kernel thread, which wakes up every 5 (by default) seconds and
writes out all dirty superblocks using the '->write_super()' call-back.  But the
problem with this thread is that it wastes power by waking up the system every
5 seconds, even if there are no diry superblocks, or there are no client
file-systems which would need this (e.g., btrfs does not use
'->write_super()'). So we want to kill it completely and thus, we need to make
file-systems to stop using the '->write_super()' VFS service, and then remove
it together with the kernel thread.

Tested using fsstress from the LTP project.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-22 23:58:16 +04:00
Artem Bityutskiy
7bd54ef722 fs/ufs: re-arrange the code a bit
This patch does not do any functional changes. It only moves 3 functions
in fs/ufs/super.c a little bit up in order to prepare for further changes
where I'll need this new arrangement to avoid forward declarations.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-22 23:58:14 +04:00