1 /*
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>
18 #include <mach/system.h>
19 
mxs_suspend_enter(suspend_state_t state)20 static int mxs_suspend_enter(suspend_state_t state)
21 {
22 	switch (state) {
23 	case PM_SUSPEND_MEM:
24 		arch_idle();
25 		break;
26 
27 	default:
28 		return -EINVAL;
29 	}
30 	return 0;
31 }
32 
33 static struct platform_suspend_ops mxs_suspend_ops = {
34 	.enter = mxs_suspend_enter,
35 	.valid = suspend_valid_only_mem,
36 };
37 
mxs_pm_init(void)38 static int __init mxs_pm_init(void)
39 {
40 	suspend_set_ops(&mxs_suspend_ops);
41 	return 0;
42 }
43 device_initcall(mxs_pm_init);
44