52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
/*
|
|
* Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
|
|
* JZ4740 SoC power management support
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/pm.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/suspend.h>
|
|
|
|
#include <asm/mach-jz4740/clock.h>
|
|
|
|
static int jz4740_pm_enter(suspend_state_t state)
|
|
{
|
|
jz4740_clock_suspend();
|
|
|
|
jz4740_clock_set_wait_mode(JZ4740_WAIT_MODE_SLEEP);
|
|
|
|
__asm__(".set\tmips3\n\t"
|
|
"wait\n\t"
|
|
".set\tmips0");
|
|
|
|
jz4740_clock_set_wait_mode(JZ4740_WAIT_MODE_IDLE);
|
|
|
|
jz4740_clock_resume();
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct platform_suspend_ops jz4740_pm_ops = {
|
|
.valid = suspend_valid_only_mem,
|
|
.enter = jz4740_pm_enter,
|
|
};
|
|
|
|
static int __init jz4740_pm_init(void)
|
|
{
|
|
suspend_set_ops(&jz4740_pm_ops);
|
|
return 0;
|
|
|
|
}
|
|
late_initcall(jz4740_pm_init);
|