|  | /* | 
|  | * Copyright (C) 2010 Freescale Semiconductor, Inc. | 
|  | * | 
|  | * 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. | 
|  | * | 
|  | * This program is distributed in the hope that it will be useful, | 
|  | * but WITHOUT ANY WARRANTY; without even the implied warranty of | 
|  | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
|  | * GNU General Public License for more details. | 
|  | */ | 
|  |  | 
|  | #include <linux/kernel.h> | 
|  | #include <linux/suspend.h> | 
|  | #include <linux/io.h> | 
|  | #include "pm.h" | 
|  |  | 
|  | static int mxs_suspend_enter(suspend_state_t state) | 
|  | { | 
|  | switch (state) { | 
|  | case PM_SUSPEND_MEM: | 
|  | cpu_do_idle(); | 
|  | break; | 
|  |  | 
|  | default: | 
|  | return -EINVAL; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | static struct platform_suspend_ops mxs_suspend_ops = { | 
|  | .enter = mxs_suspend_enter, | 
|  | .valid = suspend_valid_only_mem, | 
|  | }; | 
|  |  | 
|  | void __init mxs_pm_init(void) | 
|  | { | 
|  | suspend_set_ops(&mxs_suspend_ops); | 
|  | } |