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(enable: true); |
28 | return 0; |
29 | } |
30 | |
31 | static void shmobile_suspend_end(void) |
32 | { |
33 | cpu_idle_poll_ctrl(enable: 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(ops: &shmobile_suspend_ops); |
46 | return 0; |
47 | } |
48 |