|  | /* | 
|  | * Copyright 2016 NXP Semiconductors | 
|  | * | 
|  | * This program is free software; you can redistribute it and/or modify | 
|  | * it under the terms of the GNU General Public License version 2 as | 
|  | * published by the Free Software Foundation. | 
|  | */ | 
|  |  | 
|  | #include <linux/kernel.h> | 
|  | #include <linux/suspend.h> | 
|  | #include <linux/io.h> | 
|  |  | 
|  | static int imx25_suspend_enter(suspend_state_t state) | 
|  | { | 
|  | if (!IS_ENABLED(CONFIG_PM)) | 
|  | return 0; | 
|  |  | 
|  | switch (state) { | 
|  | case PM_SUSPEND_MEM: | 
|  | cpu_do_idle(); | 
|  | break; | 
|  | default: | 
|  | return -EINVAL; | 
|  | } | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | static const struct platform_suspend_ops imx25_suspend_ops = { | 
|  | .enter = imx25_suspend_enter, | 
|  | .valid = suspend_valid_only_mem, | 
|  | }; | 
|  |  | 
|  | void __init imx25_pm_init(void) | 
|  | { | 
|  | suspend_set_ops(&imx25_suspend_ops); | 
|  | } |