1376e9c58SShawn Guo /* 2376e9c58SShawn Guo * Copyright (C) 2010 Freescale Semiconductor, Inc. 3376e9c58SShawn Guo * 4376e9c58SShawn Guo * This program is free software; you can redistribute it and/or modify 5376e9c58SShawn Guo * it under the terms of the GNU General Public License as published by 6376e9c58SShawn Guo * the Free Software Foundation; either version 2 of the License, or 7376e9c58SShawn Guo * (at your option) any later version. 8376e9c58SShawn Guo * 9376e9c58SShawn Guo * This program is distributed in the hope that it will be useful, 10376e9c58SShawn Guo * but WITHOUT ANY WARRANTY; without even the implied warranty of 11376e9c58SShawn Guo * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12376e9c58SShawn Guo * GNU General Public License for more details. 13376e9c58SShawn Guo */ 14376e9c58SShawn Guo 15376e9c58SShawn Guo #include <linux/kernel.h> 16376e9c58SShawn Guo #include <linux/suspend.h> 17376e9c58SShawn Guo #include <linux/io.h> 1875433607SFabio Estevam #include "pm.h" 19376e9c58SShawn Guo 20376e9c58SShawn Guo static int mxs_suspend_enter(suspend_state_t state) 21376e9c58SShawn Guo { 22376e9c58SShawn Guo switch (state) { 23376e9c58SShawn Guo case PM_SUSPEND_MEM: 24ae940913SNicolas Pitre cpu_do_idle(); 25376e9c58SShawn Guo break; 26376e9c58SShawn Guo 27376e9c58SShawn Guo default: 28376e9c58SShawn Guo return -EINVAL; 29376e9c58SShawn Guo } 30376e9c58SShawn Guo return 0; 31376e9c58SShawn Guo } 32376e9c58SShawn Guo 335cd6bc68SArvind Yadav static const struct platform_suspend_ops mxs_suspend_ops = { 34376e9c58SShawn Guo .enter = mxs_suspend_enter, 35376e9c58SShawn Guo .valid = suspend_valid_only_mem, 36376e9c58SShawn Guo }; 37376e9c58SShawn Guo 3845680995SShawn Guo void __init mxs_pm_init(void) 39376e9c58SShawn Guo { 40376e9c58SShawn Guo suspend_set_ops(&mxs_suspend_ops); 41376e9c58SShawn Guo } 42