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author | Dave Airlie <airlied@redhat.com> | 2011-12-20 18:43:53 +0400 |
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committer | Dave Airlie <airlied@redhat.com> | 2011-12-20 18:43:53 +0400 |
commit | 1fbe6f625f69e48c4001051dc1431afc704acfaa (patch) | |
tree | 826b741201a2e09a627ed350c6ff36935f5cff79 /drivers/sh/pm_runtime.c | |
parent | 0cecdd818cd79d092e36e70dfe3a71f2878d6b96 (diff) | |
parent | 384703b8e6cd4c8ef08512e596024e028c91c339 (diff) | |
download | linux-1fbe6f625f69e48c4001051dc1431afc704acfaa.tar.xz |
Merge tag 'v3.2-rc6' of /home/airlied/devel/kernel/linux-2.6 into drm-core-next
Merge in the upstream tree to bring in the mainline fixes.
Conflicts:
drivers/gpu/drm/exynos/exynos_drm_fbdev.c
drivers/gpu/drm/nouveau/nouveau_sgdma.c
Diffstat (limited to 'drivers/sh/pm_runtime.c')
-rw-r--r-- | drivers/sh/pm_runtime.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/sh/pm_runtime.c b/drivers/sh/pm_runtime.c new file mode 100644 index 000000000000..afe9282629b9 --- /dev/null +++ b/drivers/sh/pm_runtime.c @@ -0,0 +1,65 @@ +/* + * Runtime PM support code + * + * Copyright (C) 2009-2010 Magnus Damm + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/io.h> +#include <linux/pm_runtime.h> +#include <linux/pm_domain.h> +#include <linux/pm_clock.h> +#include <linux/platform_device.h> +#include <linux/clk.h> +#include <linux/sh_clk.h> +#include <linux/bitmap.h> +#include <linux/slab.h> + +#ifdef CONFIG_PM_RUNTIME + +static int default_platform_runtime_idle(struct device *dev) +{ + /* suspend synchronously to disable clocks immediately */ + 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 sh_pm_runtime_init(void) +{ + pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier); + return 0; +} +core_initcall(sh_pm_runtime_init); + +static int __init sh_pm_runtime_late_init(void) +{ + pm_genpd_poweroff_unused(); + return 0; +} +late_initcall(sh_pm_runtime_late_init); |