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/*
* CPUIdle support code for SH-Mobile ARM
*
* Copyright (C) 2011 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/pm.h>
#include <linux/cpuidle.h>
#include <linux/suspend.h>
#include <linux/module.h>
#include <linux/err.h>
#include <asm/cpuidle.h>
#include <asm/io.h>
int shmobile_enter_wfi(struct cpuidle_device *dev, struct cpuidle_driver *drv,
int index)
{
cpu_do_idle();
return 0;
}
static struct cpuidle_device shmobile_cpuidle_dev;
static struct cpuidle_driver shmobile_cpuidle_default_driver = {
.name = "shmobile_cpuidle",
.owner = THIS_MODULE,
.en_core_tk_irqen = 1,
.states[0] = ARM_CPUIDLE_WFI_STATE,
.states[0].enter = shmobile_enter_wfi,
.safe_state_index = 0, /* C1 */
.state_count = 1,
};
static struct cpuidle_driver *cpuidle_drv = &shmobile_cpuidle_default_driver;
void shmobile_cpuidle_set_driver(struct cpuidle_driver *drv)
{
cpuidle_drv = drv;
}
int shmobile_cpuidle_init(void)
{
struct cpuidle_device *dev = &shmobile_cpuidle_dev;
cpuidle_register_driver(cpuidle_drv);
dev->state_count = cpuidle_drv->state_count;
cpuidle_register_device(dev);
return 0;
}
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