blob: b2494d2db2c4bc0753b96956b97cf49f6703039d [file] [log] [blame]
Shawn Guo376e9c52011-01-24 17:05:25 +08001/*
2 * Copyright (C) 2010 Freescale Semiconductor, Inc.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 */
14
15#include <linux/kernel.h>
16#include <linux/suspend.h>
17#include <linux/io.h>
Shawn Guo376e9c52011-01-24 17:05:25 +080018
19static int mxs_suspend_enter(suspend_state_t state)
20{
21 switch (state) {
22 case PM_SUSPEND_MEM:
Nicolas Pitreae940912011-12-19 03:03:58 -050023 cpu_do_idle();
Shawn Guo376e9c52011-01-24 17:05:25 +080024 break;
25
26 default:
27 return -EINVAL;
28 }
29 return 0;
30}
31
32static struct platform_suspend_ops mxs_suspend_ops = {
33 .enter = mxs_suspend_enter,
34 .valid = suspend_valid_only_mem,
35};
36
Shawn Guo45680992013-03-29 14:41:27 +080037void __init mxs_pm_init(void)
Shawn Guo376e9c52011-01-24 17:05:25 +080038{
39 suspend_set_ops(&mxs_suspend_ops);
Shawn Guo376e9c52011-01-24 17:05:25 +080040}