Shawn Guo | 376e9c5 | 2011-01-24 17:05:25 +0800 | [diff] [blame] | 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> |
Shawn Guo | 376e9c5 | 2011-01-24 17:05:25 +0800 | [diff] [blame] | 18 | |
| 19 | static int mxs_suspend_enter(suspend_state_t state) |
| 20 | { |
| 21 | switch (state) { |
| 22 | case PM_SUSPEND_MEM: |
Nicolas Pitre | ae94091 | 2011-12-19 03:03:58 -0500 | [diff] [blame] | 23 | cpu_do_idle(); |
Shawn Guo | 376e9c5 | 2011-01-24 17:05:25 +0800 | [diff] [blame] | 24 | break; |
| 25 | |
| 26 | default: |
| 27 | return -EINVAL; |
| 28 | } |
| 29 | return 0; |
| 30 | } |
| 31 | |
| 32 | static struct platform_suspend_ops mxs_suspend_ops = { |
| 33 | .enter = mxs_suspend_enter, |
| 34 | .valid = suspend_valid_only_mem, |
| 35 | }; |
| 36 | |
Shawn Guo | 4568099 | 2013-03-29 14:41:27 +0800 | [diff] [blame] | 37 | void __init mxs_pm_init(void) |
Shawn Guo | 376e9c5 | 2011-01-24 17:05:25 +0800 | [diff] [blame] | 38 | { |
| 39 | suspend_set_ops(&mxs_suspend_ops); |
Shawn Guo | 376e9c5 | 2011-01-24 17:05:25 +0800 | [diff] [blame] | 40 | } |