LXR linux/drivers/sh/pm

   1/*
   2 * Runtime PM support code
   3 *
   4 *  Copyright (C) 2009-2010 Magnus Damm
   5 *
   6 * This file is subject to the terms and conditions of the GNU General Public
   7 * License.  See the file "COPYING" in the main directory of this archive
   8 * for more details.
   9 */
  10
  11#include <linux/init.h>
  12#include <linux/kernel.h>
  13#include <linux/io.h>
  14#include <linux/pm_runtime.h>
  15#include <linux/pm_domain.h>
  16#include <linux/pm_clock.h>
  17#include <linux/platform_device.h>
  18#include <linux/clk.h>
  19#include <linux/sh_clk.h>
  20#include <linux/bitmap.h>
  21#include <linux/slab.h>
  22
  23static struct dev_pm_domain default_pm_domain = {
  24        .ops = {
  25                USE_PM_CLK_RUNTIME_OPS
  26                USE_PLATFORM_PM_SLEEP_OPS
  27        },
  28};
  29
  30static struct pm_clk_notifier_block platform_bus_notifier = {
  31        .pm_domain = &default_pm_domain,
  32        .con_ids = { NULL, },
  33};
  34
  35static int __init sh_pm_runtime_init(void)
  36{
  37        if (IS_ENABLED(CONFIG_ARCH_SHMOBILE_MULTI)) {
  38                if (!of_machine_is_compatible("renesas,emev2") &&
  39                    !of_machine_is_compatible("renesas,r7s72100") &&
  40#ifndef CONFIG_PM_GENERIC_DOMAINS_OF
  41                    !of_machine_is_compatible("renesas,r8a73a4") &&
  42                    !of_machine_is_compatible("renesas,r8a7740") &&
  43                    !of_machine_is_compatible("renesas,sh73a0") &&
  44#endif
  45                    !of_machine_is_compatible("renesas,r8a7778") &&
  46                    !of_machine_is_compatible("renesas,r8a7779") &&
  47                    !of_machine_is_compatible("renesas,r8a7790") &&
  48                    !of_machine_is_compatible("renesas,r8a7791") &&
  49                    !of_machine_is_compatible("renesas,r8a7792") &&
  50                    !of_machine_is_compatible("renesas,r8a7793") &&
  51                    !of_machine_is_compatible("renesas,r8a7794"))
  52                        return 0;
  53        }
  54
  55        pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier);
  56        return 0;
  57}
  58core_initcall(sh_pm_runtime_init);
  59