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* Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2013-02-211-4/+5
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM SoC cleanups from Arnd Bergmann: "A large number of cleanups, all over the platforms. This is dominated largely by the Samsung platforms (s3c, s5p, exynos) and a few of the others moving code out of arch/arm into more appropriate subsystems. The clocksource and irqchip drivers are now abstracted to the point where platforms that are already cleaned up do not need to even specify the driver they use, it can all get configured from the device tree as we do for normal device drivers. The clocksource changes basically touch every single platform in the process. We further clean up the use of platform specific header files here, with the goal of turning more of the platforms over to being "multiplatform" enabled, which implies that they cannot expose their headers to architecture independent code any more. It is expected that no functional changes are part of the cleanup. The overall reduction in total code lines is mostly the result of removing broken and obsolete code." * tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (133 commits) ARM: mvebu: correct gated clock documentation ARM: kirkwood: add missing include for nsa310 ARM: exynos: move exynos4210-combiner to drivers/irqchip mfd: db8500-prcmu: update resource passing drivers/db8500-cpufreq: delete dangling include ARM: at91: remove NEOCORE 926 board sunxi: Cleanup the reset code and add meaningful registers defines ARM: S3C24XX: header mach/regs-mem.h local ARM: S3C24XX: header mach/regs-power.h local ARM: S3C24XX: header mach/regs-s3c2412-mem.h local ARM: S3C24XX: Remove plat-s3c24xx directory in arch/arm/ ARM: S3C24XX: transform s3c2443 subirqs into new structure ARM: S3C24XX: modify s3c2443 irq init to initialize all irqs ARM: S3C24XX: move s3c2443 irq code to irq.c ARM: S3C24XX: transform s3c2416 irqs into new structure ARM: S3C24XX: modify s3c2416 irq init to initialize all irqs ARM: S3C24XX: move s3c2416 irq init to common irq code ARM: S3C24XX: Modify s3c_irq_wake to use the hwirq property ARM: S3C24XX: Move irq syscore-ops to irq-pm clocksource: always define CLOCKSOURCE_OF_DECLARE ...
| * Merge branch 'next/cleanup-header' of ↵Olof Johansson2013-02-041-4/+5
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup From Kukjin Kim: AS I commented, this makes <mach/*.h> local so that they could be removed. * 'next/cleanup-header' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (26 commits) ARM: S3C64XX: Fix missing header error with CONFIG_CPU_IDLE enabled ARM: S3C64XX: make regs-syscon-power.h local ARM: S3C64XX: make regs-sys.h local ARM: S3C64XX: make regs-srom.h local ARM: S3C64XX: make regs-modem.h local ARM: S3C64XX: make regs-gpio-memport.h local ARM: S3C64XX: make crag6410.h local ARM: S3C24XX: remove dsc.c and make regs-dsc.h local ARM: S3C24XX: remove idle.h ARM: S3C2412: cleanup regs-s3c2412.h ARM: S3C2416: remove regs-s3c2416-mem.h and regs-s3c2416.h ARM: S3C24XX: make vr1000-cpld.h, vr1000-irq.h and vr1000-map.h local ARM: S3C24XX: make otom-map.h local ARM: S3C24XX: make osiris-cpld.h and osiris-map.h local ARM: S3C24XX: make h1940.h and h1940-latch.h local ARM: S3C24XX: make gta02.h local ARM: S3C24XX: make bast-cpld.h, bast-irq.h and bast-map.h local ARM: S3C24XX: make anubis-cpld, anubis-irq and anubis-map local ARM: SAMSUNG: cleanup mach/gpio-fns.h gpio-track.h and gpio-nrs.h ARM: SAMSUNG: cleanup mach/regs-audss.h file ... Signed-off-by: Olof Johansson <olof@lixom.net>
| | * ARM: S3C64XX: make regs-syscon-power.h localKukjin Kim2013-01-101-1/+1
| | | | | | | | | | | | | | | | | | The header file can be local in mach-s3c64xx/. Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| | * ARM: S3C64XX: make regs-sys.h localKukjin Kim2013-01-101-1/+1
| | | | | | | | | | | | | | | | | | The header file can be local in mach-s3c64xx/. Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| | * ARM: S3C64XX: make regs-modem.h localKukjin Kim2013-01-101-1/+1
| | | | | | | | | | | | | | | | | | The header can be local in mach-s3c64xx/. Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| | * ARM: S3C64XX: make regs-gpio-memport.h localKukjin Kim2013-01-101-1/+2
| | | | | | | | | | | | | | | | | | | | | The header can be local in mach-s3c64xx/. Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* | | Merge branch 'next/fixes-samsung' of ↵Olof Johansson2013-02-171-1/+2
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/fixes-non-critical From Kukjin Kim: Here is Samsung fixes for v3.9 and it is not a critical fixes. * 'next/fixes-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: dts: Correct pin configuration of SD 4 for exynos4x12-pinctrl ARM: SAMSUNG: Silence empty switch warning in fimc-core.h ARM: SAMSUNG: Silence empty switch warning in sdhci.h ARM: S5PV210: Fix early uart output in fifo mode ARM: S3C24XX: Fix compile breakage for SMDK2410 ARM: S3C24XX: add missing platform_device.h include for osiris ARM: S3C24XX: let S3C2412_PM select S3C2412_PM_SLEEP ARM: SAMSUNG: Gracefully exit on suspend failure ARM: SAMSUNG: using vsnprintf instead of vsprintf for the limit buffer length 256 ARM: S3C24XX: Make 'clk_msysclk' static
| * | ARM: SAMSUNG: Gracefully exit on suspend failureAbhilash Kesavan2013-01-301-1/+2
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As per the Exynos5250 User Manual: When there are pending interrupt events, WFI/WFE instruction are ignored. To cancel the power-down sequence follow these steps: 1) Disable system power-down using CENTRAL_SEQ_CONFIGURATION register 2) Clear WAKEUP_STAT register 3) Enable interrupt service routine for CPU Code for early wakeup for exynos already exists. Remove the panic on suspend failure, clear the wakeup state register and return 1 from cpu_suspend to indicate a failed suspend (to a user daemon). Older Samsung SoCs have similar panics and I have removed them all. Haven't touched the S3C2410 sleep code. Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* | ARM: S3C64XX: Fix build error with CONFIG_S3C_DEV_FB disabledTomasz Figa2013-01-161-0/+2
|/ | | | | | | | | | | If there is no board selecting CONFIG_S3C_DEV_FB enabled, build will fail on arch/arm/mach-s3c64xx/pm.c, where s3c_device_fb is referenced. This patch adds ifdef guard around the code making it compile only when CONFIG_S3C_DEV_FB is enabled. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: s3c64xx: use machine specific hook for late initShawn Guo2012-05-081-2/+1
| | | | | | Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: S3C64XX: Remove unconditional power domain disablesMark Brown2012-01-121-13/+0
| | | | | | | | Now that we have software runtime power management support this code is redundant. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* Merge tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2012-01-091-0/+13
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Board-level changes This adds and extends support for specific boards on a number of ARM platforms: omap, imx, samsung, tegra, ... * tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (49 commits) Enable 32 bit flash support for iMX21ADS board ARM: mx31pdk: Add MC13783 RTC support iomux-mx25: configuration to support CSPI3 on CSI pins MX1:apf9328: Add i2c support mioa701: add newly available DoC G3 chip arm/tegra: remove __initdata annotation from pinmux tables arm/tegra: Use bus notifiers to trigger pinmux setup arm/tegra: Refactor board-*-pinmux.c to share code arm/tegra: Fix mistake in Trimslice's pinmux arm/tegra: Rework Seaboard-vs-Ventana pinmux table arm/tegra: Remove useless entries from ventana_pinmux[] arm/tegra: PCIe: Remove include of mach/pinmux.h arm/tegra: Harmony PCIe: Don't touch pinmux arm/tegra: Add AUXDATA for tegra-pinmux and tegra-gpio arm/tegra: Split Seaboard GPIO table to allow for Ventana ARM: imx6q: generate imx6q dtb files arm/imx6q: Rename Sabreauto to Armadillo2 arm/imx6q-sabrelite: add enet phy ksz9021rn fixup arm/imx6: add imx6q sabrelite board support dts/imx: rename uart labels to consistent with hw spec ...
| * ARM: S3C64XX: Power gate unused domainsMark Brown2011-12-031-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The S3C64xx CPUs have power gating support with a series of software controllable power domains in the SoC. To take full advantage of these we should implement runtime PM support but since several of the IP blocks have no in tree drivers (and at this point aren't likely to acquire such drivers) we can get some benefit from the hardware much more easily if we just turn those blocks off unconditionally. This will cut down on the leakage these domains generate without interfering with active usage. Do this for: - Domain G: 3D acceleration - Domain V: MFC - Domain I: JPEG and camera interface - Domain P: 2D acceleration, TV encoder and scaler This is easy to reverse if any of these devices do acquire drivers in the future or as part of out of tree patches for them. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* | ARM: S3C64XX: Implement basic power domain supportMark Brown2011-12-091-2/+174
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | The S3C64xx SoCs contain a set of gateable power domains which can be enabled and disabled at runtime in order to save power. Use the generic power domain code to implement support for these in software, enabling runtime control of most domains: - ETM (not supported in mainline). - Domain G: 3D acceleration (no mainline support). - Domain V: MFC (no mainline support). - Domain I: JPEG and camera interface (no mainline support). - Domain P: 2D acceleration, TV encoder and scaler (no mainline support) - Domain S: Security (no mainline support). - Domain F: LCD (driver already uses runtime PM), post processing and rotation (no mainline support). The IROM domain is marked as always enabled as we should arrange for it to be enabled when we suspend which will need a bit more work. Due to all the conditional device registration that the platform does wrap s3c_pm_init() with s3c64xx_pm_init() which actually puts the device into the power domain after the machines have registered, looking for platform data to tell if the device was registered. Since currently only Cragganmore actually sets up PM that is the only machine updated. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
* ARM: S3C64XX: Save/restore S3C64XX_MODEM_MIFPCON on suspend/resumeTomasz Figa2011-09-191-0/+2
| | | | | | | | | This patch makes sure that the LCD bypass state is preserved during sleep mode. It achieves this by saving the S3C64XX_MODEM_MIFPCON register, which is not handled by any other code currently. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: S3C64XX: Save/restore S3C64XX_SDMA_SEL on suspend/resumeTomasz Figa2011-09-191-0/+2
| | | | | | | | | This patch makes sure that S3C64XX_SDMA_SEL register is preserved during sleep mode, as it is critical for DMA operation and the DMA driver alone does not provide any power management facilities. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: S3C64XX: Fix build break in PM debugAbhilash Kesavan2011-08-191-0/+1
| | | | | | | | | | | | | | | | | When S3C_PM_DEBUG_LED_SMDK is enabled for suspend/resume debugging, the following compilation error occurs: arch/arm/mach-s3c64xx/pm.c: In function 's3c_pm_debug_smdkled': arch/arm/mach-s3c64xx/pm.c:41: error: implicit declaration of function 'gpio_set_value' arch/arm/mach-s3c64xx/pm.c:41: error: implicit declaration of function 'S3C64XX_GPN' arch/arm/mach-s3c64xx/pm.c: In function 's3c64xx_pm_init': arch/arm/mach-s3c64xx/pm.c:184: error: implicit declaration of function 'gpio_request' arch/arm/mach-s3c64xx/pm.c:188: error: implicit declaration of function 'gpio_direction_output' Fix the error by including linux/gpio.h Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: pm: allow suspend finisher to return error codesRussell King2011-07-021-1/+1
| | | | | | | | | | | | | | There are SoCs where attempting to enter a low power state is ignored, and the CPU continues executing instructions with all state preserved. It is over-complex at that point to disable the MMU just to call the resume path. Instead, allow the suspend finisher to return error codes to abort suspend in this circumstance, where the cpu_suspend internals will then unwind the saved state on the stack. Also omit the tlb flush as no changes to the page tables will have happened. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: pm: samsung: move cpu_suspend into C codeRussell King2011-06-241-1/+1
| | | | | | | | Move the call to cpu_suspend into C code, and noticing that all the s3c_cpu_save implementations are now identical, we can move this into the common samsung code. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: S3C64XX: Remove gpio-bank-X header filesJoonyoung Shim2011-05-061-15/+19
| | | | | | | | | The gpio-bank-X header files of S3C64XX have definitions which can be substituted by other common GPIO API. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: S3C64XX: PM: Synchronise wakeup mask on suspendBen Dooks2010-05-201-0/+20
| | | | | | | Use the new wakeup mask synchronisation code to set the relevant wakeup mask bits. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
* ARM: S3C64XX: Move core support to mach-s3c64xxBen Dooks2010-02-201-0/+173
Move the core S3C64XX support to mach-s3c64xx as it is unlikely to be used outside of this directory. Also move the SoC header files in with it. This includes the clock, cpu, cpufreq, dma, gpiolib and pll support. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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