1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (C) 2012 Freescale Semiconductor, Inc. 4 */ 5 6 #include <linux/cpuidle.h> 7 #include <linux/module.h> 8 #include <asm/system_misc.h> 9 #include "cpuidle.h" 10 11 static int imx5_cpuidle_enter(struct cpuidle_device *dev, 12 struct cpuidle_driver *drv, int index) 13 { 14 arm_pm_idle(); 15 return index; 16 } 17 18 static struct cpuidle_driver imx5_cpuidle_driver = { 19 .name = "imx5_cpuidle", 20 .owner = THIS_MODULE, 21 .states[0] = { 22 .enter = imx5_cpuidle_enter, 23 .exit_latency = 2, 24 .target_residency = 1, 25 .name = "IMX5 SRPG", 26 .desc = "CPU state retained,powered off", 27 }, 28 .state_count = 1, 29 }; 30 31 int __init imx5_cpuidle_init(void) 32 { 33 return cpuidle_register(&imx5_cpuidle_driver, NULL); 34 } 35