1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Suspend-to-RAM support code for SH-Mobile ARM
4 *
5 * Copyright (C) 2011 Magnus Damm
6 */
7
8 #include <linux/pm.h>
9 #include <linux/suspend.h>
10 #include <linux/module.h>
11 #include <linux/err.h>
12 #include <linux/cpu.h>
13
14 #include <asm/io.h>
15 #include <asm/system_misc.h>
16
17 #include "common.h"
18
19 static int shmobile_suspend_default_enter(suspend_state_t suspend_state)
20 {
21 cpu_do_idle();
22 return 0;
23 }
24
25 static int shmobile_suspend_begin(suspend_state_t state)
26 {
27 cpu_idle_poll_ctrl(true);
28 return 0;
29 }
30
31 static void shmobile_suspend_end(void)
32 {
33 cpu_idle_poll_ctrl(false);
34 }
35
36 struct platform_suspend_ops shmobile_suspend_ops = {
37 .begin = shmobile_suspend_begin,
38 .end = shmobile_suspend_end,
39 .enter = shmobile_suspend_default_enter,
40 .valid = suspend_valid_only_mem,
41 };
42
43 int __init shmobile_suspend_init(void)
44 {
45 suspend_set_ops(&shmobile_suspend_ops);
46 return 0;
47 }
48
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