arch/arm/mach-tango/pm.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <linux/init.h>
   3 #include <linux/suspend.h>
   4 #include <asm/suspend.h>
   5 #include "smc.h"
   6
   7 static int tango_pm_powerdown(unsigned long arg)
   8 {
   9         tango_suspend(__pa_symbol(cpu_resume));
  10
  11         return -EIO; /* tango_suspend has failed */
  12 }
  13
  14 static int tango_pm_enter(suspend_state_t state)
  15 {
  16         if (state == PM_SUSPEND_MEM)
  17                 return cpu_suspend(0, tango_pm_powerdown);
  18
  19         return -EINVAL;
  20 }
  21
  22 static const struct platform_suspend_ops tango_pm_ops = {
  23         .enter = tango_pm_enter,
  24         .valid = suspend_valid_only_mem,
  25 };
  26
  27 static int __init tango_pm_init(void)
  28 {
  29         suspend_set_ops(&tango_pm_ops);
  30         return 0;
  31 }
  32
  33 late_initcall(tango_pm_init);