1 /* 2 * Copyright (C) 2012 Freescale Semiconductor, Inc. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 as 6 * published by the Free Software Foundation. 7 */ 8 9 #include <linux/cpuidle.h> 10 #include <linux/module.h> 11 #include <asm/system_misc.h> 12 13 static int imx5_cpuidle_enter(struct cpuidle_device *dev, 14 struct cpuidle_driver *drv, int index) 15 { 16 arm_pm_idle(); 17 return index; 18 } 19 20 static struct cpuidle_driver imx5_cpuidle_driver = { 21 .name = "imx5_cpuidle", 22 .owner = THIS_MODULE, 23 .states[0] = { 24 .enter = imx5_cpuidle_enter, 25 .exit_latency = 2, 26 .target_residency = 1, 27 .name = "IMX5 SRPG", 28 .desc = "CPU state retained,powered off", 29 }, 30 .state_count = 1, 31 }; 32 33 int __init imx5_cpuidle_init(void) 34 { 35 return cpuidle_register(&imx5_cpuidle_driver, NULL); 36 } 37