Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> --- arch/arm/mach-exynos4/Makefile | 2 +- arch/arm/mach-exynos4/pm-runtime.c | 56 ++++++++++++++++++++++++++++++++++++ 2 files changed, 57 insertions(+), 1 deletions(-) create mode 100644 arch/arm/mach-exynos4/pm-runtime.c diff --git a/arch/arm/mach-exynos4/Makefile b/arch/arm/mach-exynos4/Makefile index 97c31ce..28cdb8b 100644 --- a/arch/arm/mach-exynos4/Makefile +++ b/arch/arm/mach-exynos4/Makefile @@ -5,7 +5,7 @@ # # Licensed under GPLv2 -obj-y := +obj-y := pm-runtime.o obj-m := obj-n := obj- := diff --git a/arch/arm/mach-exynos4/pm-runtime.c b/arch/arm/mach-exynos4/pm-runtime.c new file mode 100644 index 0000000..4fe9f73 --- /dev/null +++ b/arch/arm/mach-exynos4/pm-runtime.c @@ -0,0 +1,56 @@ +/* linux/arch/arm/mach-exynos4/pm-runtime.c + + * Exynos4210 Power management support + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/io.h> +#include <linux/pm_runtime.h> +#include <linux/platform_device.h> +#include <linux/clk.h> +#include <linux/bitmap.h> +#include <linux/slab.h> + +#ifdef CONFIG_PM_RUNTIME + +static int default_platform_runtime_idle(struct device *dev) +{ + return pm_runtime_suspend(dev); +} + +static struct dev_pm_domain default_pm_domain = { + .ops = { + .runtime_suspend = pm_clk_suspend, + .runtime_resume = pm_clk_resume, + .runtime_idle = default_platform_runtime_idle, + USE_PLATFORM_PM_SLEEP_OPS + }, +}; + +#define DEFAULT_PM_DOMAIN_PTR (&default_pm_domain) + +#else + +#define DEFAULT_PM_DOMAIN_PTR NULL + +#endif /* CONFIG_PM_RUNTIME */ + +static struct pm_clk_notifier_block platform_bus_notifier = { + .pm_domain = DEFAULT_PM_DOMAIN_PTR, + .con_ids = { NULL, }, +}; + +static int __init exynos4_pm_runtime_init(void) +{ + pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier); + return 0; +} +core_initcall(exynos4_pm_runtime_init); -- 1.7.0.4 _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
