1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Copyright 2016 NXP Semiconductors
4  */
5 
6 #include <linux/kernel.h>
7 #include <linux/suspend.h>
8 #include <linux/io.h>
9 
imx25_suspend_enter(suspend_state_t state)10 static int imx25_suspend_enter(suspend_state_t state)
11 {
12 	if (!IS_ENABLED(CONFIG_PM))
13 		return 0;
14 
15 	switch (state) {
16 	case PM_SUSPEND_MEM:
17 		cpu_do_idle();
18 		break;
19 	default:
20 		return -EINVAL;
21 	}
22 
23 	return 0;
24 }
25 
26 static const struct platform_suspend_ops imx25_suspend_ops = {
27 	.enter = imx25_suspend_enter,
28 	.valid = suspend_valid_only_mem,
29 };
30 
imx25_pm_init(void)31 void __init imx25_pm_init(void)
32 {
33 	suspend_set_ops(&imx25_suspend_ops);
34 }
35