diff options
Diffstat (limited to 'arch/arm/mach-exynos/suspend.c')
| -rw-r--r-- | arch/arm/mach-exynos/suspend.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c index cc8d2374f1b1..f8e7dcd17055 100644 --- a/arch/arm/mach-exynos/suspend.c +++ b/arch/arm/mach-exynos/suspend.c @@ -20,6 +20,7 @@ #include <linux/io.h> #include <linux/irqchip/arm-gic.h> #include <linux/err.h> +#include <linux/regulator/machine.h> #include <asm/cacheflush.h> #include <asm/hardware/cache-l2x0.h> @@ -443,6 +444,22 @@ static int exynos_suspend_enter(suspend_state_t state) static int exynos_suspend_prepare(void) { + int ret; + + /* + * REVISIT: It would be better if struct platform_suspend_ops + * .prepare handler get the suspend_state_t as a parameter to + * avoid hard-coding the suspend to mem state. It's safe to do + * it now only because the suspend_valid_only_mem function is + * used as the .valid callback used to check if a given state + * is supported by the platform anyways. + */ + ret = regulator_suspend_prepare(PM_SUSPEND_MEM); + if (ret) { + pr_err("Failed to prepare regulators for suspend (%d)\n", ret); + return ret; + } + s3c_pm_check_prepare(); return 0; @@ -450,7 +467,13 @@ static int exynos_suspend_prepare(void) static void exynos_suspend_finish(void) { + int ret; + s3c_pm_check_cleanup(); + + ret = regulator_suspend_finish(); + if (ret) + pr_warn("Failed to resume regulators from suspend (%d)\n", ret); } static const struct platform_suspend_ops exynos_suspend_ops = { |