forked from Minki/linux
66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
/*
|
|
* 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);
|