Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / arch / arm / mach-imx / cpuidle-imx5.c
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 }