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2013-01-30ARM: SAMSUNG: Gracefully exit on suspend failureAbhilash Kesavan1-2/+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>
2012-01-27ARM: SAMSUNG: Fix missing api-change from subsys_interface changeHeiko Stuebner1-1/+1
Commit 4a858cfc9a (arm: convert sysdev_class to a regular subsystem) converted the samsung sysdevs into subsys_interface instances. While the original add-function only had a (struct sys_device *) parameter, the dev_add from subsys_interface needs (struct device *, struct subsys_interface *) leading to "initialized from incompatible pointer type" warnings. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Cc: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-21arm: convert sysdev_class to a regular subsystemKay Sievers1-4/+6
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>
2011-08-19ARM: S5PV210: Fix build warningAbhilash Kesavan1-1/+1
Fixed the following warning for S5PV210. arch/arm/mach-s5pv210/pm.c: In function 's5pv210_pm_add': arch/arm/mach-s5pv210/pm.c:139: warning: assignment from incompatible pointer type Also, staticized the function. Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-06-24ARM: pm: samsung: move cpu_suspend into C codeRussell King1-1/+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>
2011-04-24ARM / Samsung: Use struct syscore_ops for "core" power managementRafael J. Wysocki1-8/+17
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>
2010-10-21ARM: S5PV210: Add Power Management SupportJongpill Lee1-0/+166
This patch adds suspend-to-ram support for S5PV210. Note. This patch is confirmed on SMDKV210 and SMDKC110 board. Signed-off-by: Jongpill Lee <boyko.lee@samsung.com> Signed-off-by: Sangbeom Kim <sbkim73@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>