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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /arch/arm/mach-omap1/pm_bus.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'arch/arm/mach-omap1/pm_bus.c')
-rw-r--r-- | arch/arm/mach-omap1/pm_bus.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/arch/arm/mach-omap1/pm_bus.c b/arch/arm/mach-omap1/pm_bus.c new file mode 100644 index 00000000..7868e75a --- /dev/null +++ b/arch/arm/mach-omap1/pm_bus.c @@ -0,0 +1,80 @@ +/* + * Runtime PM support code for OMAP1 + * + * Author: Kevin Hilman, Deep Root Systems, LLC + * + * Copyright (C) 2010 Texas Instruments, Inc. + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/io.h> +#include <linux/pm_runtime.h> +#include <linux/pm_clock.h> +#include <linux/platform_device.h> +#include <linux/mutex.h> +#include <linux/clk.h> +#include <linux/err.h> + +#include <plat/omap_device.h> +#include <plat/omap-pm.h> + +#ifdef CONFIG_PM_RUNTIME +static int omap1_pm_runtime_suspend(struct device *dev) +{ + int ret; + + dev_dbg(dev, "%s\n", __func__); + + ret = pm_generic_runtime_suspend(dev); + if (ret) + return ret; + + ret = pm_clk_suspend(dev); + if (ret) { + pm_generic_runtime_resume(dev); + return ret; + } + + return 0; +} + +static int omap1_pm_runtime_resume(struct device *dev) +{ + dev_dbg(dev, "%s\n", __func__); + + pm_clk_resume(dev); + return pm_generic_runtime_resume(dev); +} + +static struct dev_pm_domain default_pm_domain = { + .ops = { + .runtime_suspend = omap1_pm_runtime_suspend, + .runtime_resume = omap1_pm_runtime_resume, + USE_PLATFORM_PM_SLEEP_OPS + }, +}; +#define OMAP1_PM_DOMAIN (&default_pm_domain) +#else +#define OMAP1_PM_DOMAIN NULL +#endif /* CONFIG_PM_RUNTIME */ + +static struct pm_clk_notifier_block platform_bus_notifier = { + .pm_domain = OMAP1_PM_DOMAIN, + .con_ids = { "ick", "fck", NULL, }, +}; + +static int __init omap1_pm_runtime_init(void) +{ + if (!cpu_class_is_omap1()) + return -ENODEV; + + pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier); + + return 0; +} +core_initcall(omap1_pm_runtime_init); + |