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 #include "pm.h"
   7
   8 static int tango_pm_powerdown(unsigned long arg)
   9 {
  10         tango_suspend(__pa_symbol(cpu_resume));
  11
  12         return -EIO; /* tango_suspend has failed */
  13 }
  14
  15 static int tango_pm_enter(suspend_state_t state)
  16 {
  17         if (state == PM_SUSPEND_MEM)
  18                 return cpu_suspend(0, tango_pm_powerdown);
  19
  20         return -EINVAL;
  21 }
  22
  23 static const struct platform_suspend_ops tango_pm_ops = {
  24         .enter = tango_pm_enter,
  25         .valid = suspend_valid_only_mem,
  26 };
  27
  28 void __init tango_pm_init(void)
  29 {
  30         suspend_set_ops(&tango_pm_ops);
  31 }