LXR linux/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
  13static 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
  20static 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                .flags            = CPUIDLE_FLAG_TIME_VALID,
  28                .name             = "IMX5 SRPG",
  29                .desc             = "CPU state retained,powered off",
  30        },
  31        .state_count = 1,
  32};
  33
  34int __init imx5_cpuidle_init(void)
  35{
  36        return cpuidle_register(&imx5_cpuidle_driver, NULL);
  37}
  38