arch/arm/mach-tegra/cpuidle.c

   1 /*
   2  * arch/arm/mach-tegra/cpuidle.c
   3  *
   4  * CPU idle driver for Tegra CPUs
   5  *
   6  * Copyright (c) 2010-2012, NVIDIA Corporation.
   7  * Copyright (c) 2011 Google, Inc.
   8  * Author: Colin Cross <ccross@android.com>
   9  *         Gary King <gking@nvidia.com>
  10  *
  11  * Rework for 3.3 by Peter De Schrijver <pdeschrijver@nvidia.com>
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 2 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful, but WITHOUT
  19  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  20  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  21  * more details.
  22  */
  23
  24 #include <linux/kernel.h>
  25 #include <linux/module.h>
  26
  27 #include "fuse.h"
  28 #include "cpuidle.h"
  29
  30 static int __init tegra_cpuidle_init(void)
  31 {
  32         int ret;
  33
  34         switch (tegra_chip_id) {
  35         case TEGRA20:
  36                 ret = tegra20_cpuidle_init();
  37                 break;
  38         case TEGRA30:
  39                 ret = tegra30_cpuidle_init();
  40                 break;
  41         default:
  42                 ret = -ENODEV;
  43                 break;
  44         }
  45
  46         return ret;
  47 }
  48 device_initcall(tegra_cpuidle_init);