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 
tango_pm_powerdown(unsigned long arg)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 
tango_pm_enter(suspend_state_t state)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 
tango_pm_init(void)28 void __init tango_pm_init(void)
29 {
30 	suspend_set_ops(&tango_pm_ops);
31 }
32