arch/mips/jz4740/pm.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
   4  *      JZ4740 SoC power management support
   5  */
   6
   7 #include <linux/init.h>
   8 #include <linux/pm.h>
   9 #include <linux/delay.h>
  10 #include <linux/suspend.h>
  11
  12 static int jz4740_pm_enter(suspend_state_t state)
  13 {
  14         __asm__(".set\tmips3\n\t"
  15                 "wait\n\t"
  16                 ".set\tmips0");
  17
  18
  19
  20         return 0;
  21 }
  22
  23 static const struct platform_suspend_ops jz4740_pm_ops = {
  24         .valid          = suspend_valid_only_mem,
  25         .enter          = jz4740_pm_enter,
  26 };
  27
  28 static int __init jz4740_pm_init(void)
  29 {
  30         suspend_set_ops(&jz4740_pm_ops);
  31         return 0;
  32
  33 }
  34 late_initcall(jz4740_pm_init);