1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright 2016 NXP Semiconductors 4*4882a593Smuzhiyun */ 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun #include <linux/kernel.h> 7*4882a593Smuzhiyun #include <linux/suspend.h> 8*4882a593Smuzhiyun #include <linux/io.h> 9*4882a593Smuzhiyun imx25_suspend_enter(suspend_state_t state)10*4882a593Smuzhiyunstatic int imx25_suspend_enter(suspend_state_t state) 11*4882a593Smuzhiyun { 12*4882a593Smuzhiyun if (!IS_ENABLED(CONFIG_PM)) 13*4882a593Smuzhiyun return 0; 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun switch (state) { 16*4882a593Smuzhiyun case PM_SUSPEND_MEM: 17*4882a593Smuzhiyun cpu_do_idle(); 18*4882a593Smuzhiyun break; 19*4882a593Smuzhiyun default: 20*4882a593Smuzhiyun return -EINVAL; 21*4882a593Smuzhiyun } 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun return 0; 24*4882a593Smuzhiyun } 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun static const struct platform_suspend_ops imx25_suspend_ops = { 27*4882a593Smuzhiyun .enter = imx25_suspend_enter, 28*4882a593Smuzhiyun .valid = suspend_valid_only_mem, 29*4882a593Smuzhiyun }; 30*4882a593Smuzhiyun imx25_pm_init(void)31*4882a593Smuzhiyunvoid __init imx25_pm_init(void) 32*4882a593Smuzhiyun { 33*4882a593Smuzhiyun suspend_set_ops(&imx25_suspend_ops); 34*4882a593Smuzhiyun } 35