[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / mips / jz4740 / pm.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>

#include "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);
Commit	Line	Data
c863a236 LPC	1	/*
	2	* Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
	3	* JZ4740 SoC power management support
	4	*
	5	* This program is free software; you can redistribute it and/or modify it
70342287	6	* under the terms of the GNU General Public License as published by the
c863a236 LPC	7	* Free Software Foundation; either version 2 of the License, or (at your
	8	* option) any later version.
	9	*
	10	* You should have received a copy of the GNU General Public License along
	11	* with this program; if not, write to the Free Software Foundation, Inc.,
	12	* 675 Mass Ave, Cambridge, MA 02139, USA.
	13	*
	14	*/
	15
	16	#include <linux/init.h>
	17	#include <linux/pm.h>
	18	#include <linux/delay.h>
	19	#include <linux/suspend.h>
	20
	21	#include <asm/mach-jz4740/clock.h>
	22
	23	#include "clock.h"
c863a236 LPC	24
	25	static int jz4740_pm_enter(suspend_state_t state)
	26	{
c863a236 LPC	27	jz4740_clock_suspend();
	28
	29	jz4740_clock_set_wait_mode(JZ4740_WAIT_MODE_SLEEP);
	30
	31	__asm__(".set\tmips3\n\t"
	32	"wait\n\t"
	33	".set\tmips0");
	34
	35	jz4740_clock_set_wait_mode(JZ4740_WAIT_MODE_IDLE);
	36
	37	jz4740_clock_resume();
c863a236 LPC	38
	39	return 0;
	40	}
	41
2f55ac07	42	static const struct platform_suspend_ops jz4740_pm_ops = {
c863a236 LPC	43	.valid = suspend_valid_only_mem,
	44	.enter = jz4740_pm_enter,
	45	};
	46
	47	static int __init jz4740_pm_init(void)
	48	{
	49	suspend_set_ops(&jz4740_pm_ops);
	50	return 0;
	51
	52	}
	53	late_initcall(jz4740_pm_init);