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 <soc/tegra/fuse.h>
  28
  29 #include "cpuidle.h"
  30
  31 void __init tegra_cpuidle_init(void)
  32 {
  33         switch (tegra_get_chip_id()) {
  34         case TEGRA20:
  35                 if (IS_ENABLED(CONFIG_ARCH_TEGRA_2x_SOC))
  36                         tegra20_cpuidle_init();
  37                 break;
  38         case TEGRA30:
  39                 if (IS_ENABLED(CONFIG_ARCH_TEGRA_3x_SOC))
  40                         tegra30_cpuidle_init();
  41                 break;
  42         case TEGRA114:
  43         case TEGRA124:
  44                 if (IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC) ||
  45                     IS_ENABLED(CONFIG_ARCH_TEGRA_124_SOC))
  46                         tegra114_cpuidle_init();
  47                 break;
  48         }
  49 }
  50
  51 void tegra_cpuidle_pcie_irqs_in_use(void)
  52 {
  53         switch (tegra_get_chip_id()) {
  54         case TEGRA20:
  55                 if (IS_ENABLED(CONFIG_ARCH_TEGRA_2x_SOC))
  56                         tegra20_cpuidle_pcie_irqs_in_use();
  57                 break;
  58         }
  59 }