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* ARM: s3c: simplify s3c_irqwake_{e,}intallow definitionArnd Bergmann2015-12-311-8/+0
| | | | | | | | | | | | | | | | | | | For a long time, gcc has warned about odd configurations on s3c64xx: In file included from arch/arm/plat-samsung/pm.c:34:0: arch/arm/mach-s3c64xx/include/mach/pm-core.h:61:0: warning: "s3c_irqwake_eintallow" redefined #define s3c_irqwake_eintallow ((1 << 28) - 1) In file included from arch/arm/plat-samsung/pm.c:33:0: arch/arm/plat-samsung/include/plat/pm.h:49:0: note: this is the location of the previous definition #define s3c_irqwake_eintallow 0 The definitions of s3c_irqwake_intallow and s3c_irqwake_eintallow are a bit consistent between the various platforms. Things have become easier now that it's only s3c24xx and s3c64xx that use them at all, so I've tried to rearrange the definitions to make it more obvious what is going on. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
* ARM: S3C24XX: fix building without PM_SLEEPArnd Bergmann2015-02-271-2/+10
| | | | | | | | | We get lots of link errors based on the assumption that any s3c24xx kernel would enable CONFIG_PM_SLEEP if it enables CONFIG_PM. This tries to clean that up. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene@kernel.org>
* ARM: S3C64XX: fix building without CONFIG_PM_SLEEPArnd Bergmann2015-02-271-1/+1
| | | | | | | | | | | | | | | | | arch/arm/mach-s3c64xx/built-in.o: In function `s3c_pm_restore_core': :(.text+0x5d0): undefined reference to `s3c_pm_do_restore_core' :(.text+0x5d4): undefined reference to `s3c_pm_do_restore' arch/arm/mach-s3c64xx/built-in.o: In function `s3c_pm_save_core': :(.text+0x60c): undefined reference to `s3c_pm_do_save' arch/arm/mach-s3c64xx/built-in.o: In function `s3c64xx_irq_pm_resume': :(.text+0x670): undefined reference to `s3c_pm_do_restore' arch/arm/mach-s3c64xx/built-in.o: In function `s3c64xx_irq_pm_suspend': :(.text+0x6d8): undefined reference to `s3c_pm_do_save' arch/arm/mach-s3c64xx/built-in.o: In function `s3c_cpu_resume': :(.text+0x71c): undefined reference to `cpu_resume' Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene@kernel.org>
* ARM: SAMSUNG: Move s3c_pm_check_* prototypes to plat/pm-common.hTomasz Figa2014-03-211-14/+0
| | | | | | | | | | To allow using Samsung PM memory check helpers on platforms that do not use the legacy Samsung PM core, this patch moves prototypes of relevant functions to plat/pm-common.h header. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: SAMSUNG: Move common save/restore helpers to separate fileTomasz Figa2014-03-211-25/+0
| | | | | | | | | | | | To separate legacy PM code from generic helpers, this patch moves the generic register save/restore helpers to a new file called pm-common.c that is compiled always when CONFIG_PM_SLEEP is enabled, to allow platforms that do not want to use the legacy PM code use the generic helpers. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: SAMSUNG: Move Samsung PM debug code into separate fileTomasz Figa2014-03-211-38/+1
| | | | | | | | | | | Not all Samsung SoC platforms are going to use the legacy Samsung PM code enabled by CONFIG_SAMSUNG_PM_DEBUG. To allow using Samsung PM debug helpers on such platforms, related code is moved to separate file and a plat/pm-common.h header is added to separate legacy and generic code. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: SAMSUNG: Save UART DIVSLOT register based on SoC typeTomasz Figa2014-03-211-2/+0
| | | | | | | | | | | The only SoC that does not have DIVSLOT register is S3C2410, so instead of exporting a variable for platforms to set if DIVSLOT register should be preserved, it's enough to simply check whether we are running on a S3C2410 instead. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: SAMSUNG: Let s3c_pm_do_restore_*() take const sleep_saveDaniel Kurtz2013-12-121-2/+2
| | | | | | | | | | | | | The restore functions do not modify the passed in struct sleep_save, so that parameter can be const. This allows us to pass in const struct. This allows us to use const structs sleep_save to define system registers that will always be restored to a constant value. Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: SAMSUNG: Add SAMSUNG_PM config option to select pmAmit Daniel Kachhap2013-07-241-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch enables the selection of samsung pm related stuffs when SAMSUNG_PM config is enabled and not just when generic PM config is enabled. Power management for s3c64XX and s3c24XX is enabled by default and for other platform depends on S5P_PM. This patch also fixes the following compilation error's when compiling a platform like exynos5440 which does not select pm stuffs. arch/arm/mach-exynos/built-in.o: In function '__virt_to_phys': linux/arch/arm/include/asm/memory.h:175: undefined reference to 's3c_cpu_resume' linux/arch/arm/include/asm/memory.h:175: undefined reference to 's3c_cpu_resume' linux/arch/arm/include/asm/memory.h:175: undefined reference to 's3c_cpu_resume' linux/arch/arm/include/asm/memory.h:175: undefined reference to 's3c_cpu_resume' arch/arm/mach-exynos/built-in.o: In function 'exynos5_init_irq': linux/arch/arm/mach-exynos/common.c:492: undefined reference to 's3c_irq_wake' linux/arch/arm/mach-exynos/common.c:492: undefined reference to 's3c_irq_wake' arch/arm/mach-exynos/built-in.o: In function 'exynos4_init_irq': linux/arch/arm/mach-exynos/common.c:476: undefined reference to 's3c_irq_wake' linux/arch/arm/mach-exynos/common.c:476: undefined reference to 's3c_irq_wake' arch/arm/plat-samsung/built-in.o: In function 's3c_irqext_wake': linux/arch/arm/plat-samsung/pm.c:144: undefined reference to 's3c_irqwake_eintallow' linux/arch/arm/plat-samsung/pm.c:144: undefined reference to 's3c_irqwake_eintallow' arch/arm/plat-samsung/built-in.o: In function 's3c_pm_enter': linux/arch/arm/plat-samsung/pm.c:263: undefined reference to 's3c_irqwake_intallow' linux/arch/arm/plat-samsung/pm.c:263: undefined reference to 's3c_irqwake_intallow' linux/arch/arm/plat-samsung/pm.c:264: undefined reference to 's3c_irqwake_eintallow' linux/arch/arm/plat-samsung/pm.c:264: undefined reference to 's3c_irqwake_eintallow' linux/arch/arm/plat-samsung/pm.c:275: undefined reference to 's3c_pm_save_core' linux/arch/arm/plat-samsung/pm.c:279: undefined reference to 's3c_pm_configure_extint' linux/arch/arm/plat-samsung/pm.c:310: undefined reference to 's3c_pm_restore_core' make: *** [vmlinux] Error 1 Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: SAMSUNG: Introduce GPIO_SAMSUNG Kconfig entryTomasz Figa2013-06-191-0/+5
| | | | | | | | | | | | 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>
* ARM: S3C24XX: Move irq syscore-ops to irq-pmHeiko Stuebner2013-02-031-6/+0
| | | | | | | | | With this the definition of s3c24xx_irq_syscore_ops can also move to common.h from plat/pm.h and the definitions of s3c24xx_irq_suspend and s3c24xx_irq_resume are also not necessary anymore in plat/pm.h Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Add support for rtc wakeupInderpal Singh2012-11-281-0/+2
| | | | | | | | Set the gic arch extension callback to support rtc wakeup. Signed-off-by: Inderpal Singh <inderpal.singh@samsung.com> Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* Merge branch 'pm-for-linus' of ↵Linus Torvalds2012-01-081-0/+6
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm * 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits) PM / Hibernate: Implement compat_ioctl for /dev/snapshot PM / Freezer: fix return value of freezable_schedule_timeout_killable() PM / shmobile: Allow the A4R domain to be turned off at run time PM / input / touchscreen: Make st1232 use device PM QoS constraints PM / QoS: Introduce dev_pm_qos_add_ancestor_request() PM / shmobile: Remove the stay_on flag from SH7372's PM domains PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resume PM / shmobile: Add support for the sh7372 A4S power domain / sleep mode PM: Drop generic_subsys_pm_ops PM / Sleep: Remove forward-only callbacks from AMBA bus type PM / Sleep: Remove forward-only callbacks from platform bus type PM: Run the driver callback directly if the subsystem one is not there PM / Sleep: Make pm_op() and pm_noirq_op() return callback pointers PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412. PM / Sleep: Merge internal functions in generic_ops.c PM / Sleep: Simplify generic system suspend callbacks PM / Hibernate: Remove deprecated hibernation snapshot ioctls PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled() ARM: S3C64XX: Implement basic power domain support PM / shmobile: Use common always on power domain governor ... Fix up trivial conflict in fs/xfs/xfs_buf.c due to removal of unused XBT_FORCE_SLEEP bit
| * ARM: S3C64XX: Implement basic power domain supportMark Brown2011-12-091-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: convert sysdev_class to a regular subsystemKay Sievers2011-12-211-1/+1
|/ | | | | | | | | | | | | | | | After all sysdev classes are ported to regular driver core entities, the sysdev implementation will be entirely removed from the kernel. Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Boojin Kim <boojin.kim@samsung.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Lucas De Marchi <lucas.demarchi@profusion.mobi> Cc: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* ARM: SAMSUNG: Update the name of regarding Samsung GPIOKukjin Kim2011-09-211-5/+5
| | | | | | | | | | | | | According to gpio-samsung.c, this patch updates the name of regarding Samsung GPIO. Basically the samsung_xxx prefix is used in gpio-samsung.c instead of s3c_xxx, because unified name can reduce its complexity. Note: some s3c_xxx stil remains because it is used widely. It will be updated next time. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: pm: allow suspend finisher to return error codesRussell King2011-07-021-2/+2
| | | | | | | | | | | | | | 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 King2011-06-241-3/+2
| | | | | | | | 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 / Samsung: Use struct syscore_ops for "core" power managementRafael J. Wysocki2011-04-241-2/+4
| | | | | | | | | | | | | | Replace sysdev classes and struct sys_device objects used for "core" power management by Samsung platforms with struct syscore_ops objects that are simpler. This generally reduces the code size and the kernel memory footprint. It also is necessary for removing sysdevs entirely from the kernel in the future. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Kukjin Kim <kgene.kim@samsung.com>
*-. Merge branches 'at91', 'ep93xx', 'errata', 'footbridge', 'fncpy', 'gemini', ↵Russell King2011-03-161-11/+1
|\ \ | | | | | | | | | 'irqdata', 'pm', 'sh', 'smp', 'spear', 'ux500' and 'via' into devel
| | * ARM: pm: convert samsung platforms to generic suspend/resume supportRussell King2011-02-221-11/+1
| |/ | | | | | | | | Tested-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | ARM: SAMSUNG: Ensure struct sys_device is declared in plat/pm.hMark Brown2011-02-111-0/+2
|/ | | | | | | | Previously we were relying on it being pulled in by other headers for the prototype of s3c24xx_irq_suspend() and s3c24xx_irq_resume(). Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: SAMSUNG: Convert s3c_irqext_wake() to new irq_ interrupt methodsMark Brown2010-12-301-1/+3
| | | | | | | | | | | Kernel 2.6.37 adds new interrupt methods which take a struct irq_data rather than an irq number. Begin converting Samsung platforms over to these methods by converting s3c_irqext_wake() with a simple textual substitution. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: SAMSUNG: Move common headers from plat-s3c to plat-samsungBen Dooks2010-02-231-0/+189
Move common headers from plat-s3c's include/plat directory into plat-samsung. No need to fix any files, these are still included via <plat/> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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