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c3dada18 MD |
1 | /* |
2 | * Suspend-to-RAM support code for SH-Mobile ARM | |
3 | * | |
4 | * Copyright (C) 2011 Magnus Damm | |
5 | * | |
6 | * This file is subject to the terms and conditions of the GNU General Public | |
7 | * License. See the file "COPYING" in the main directory of this archive | |
8 | * for more details. | |
9 | */ | |
10 | ||
11 | #include <linux/pm.h> | |
12 | #include <linux/suspend.h> | |
13 | #include <linux/module.h> | |
14 | #include <linux/err.h> | |
15 | #include <asm/system.h> | |
16 | #include <asm/io.h> | |
17 | ||
18 | static int shmobile_suspend_default_enter(suspend_state_t suspend_state) | |
19 | { | |
20 | cpu_do_idle(); | |
21 | return 0; | |
22 | } | |
23 | ||
24 | static int shmobile_suspend_begin(suspend_state_t state) | |
25 | { | |
26 | disable_hlt(); | |
27 | return 0; | |
28 | } | |
29 | ||
30 | static void shmobile_suspend_end(void) | |
31 | { | |
32 | enable_hlt(); | |
33 | } | |
34 | ||
35 | struct platform_suspend_ops shmobile_suspend_ops = { | |
36 | .begin = shmobile_suspend_begin, | |
37 | .end = shmobile_suspend_end, | |
38 | .enter = shmobile_suspend_default_enter, | |
39 | .valid = suspend_valid_only_mem, | |
40 | }; | |
41 | ||
42 | static int __init shmobile_suspend_init(void) | |
43 | { | |
44 | suspend_set_ops(&shmobile_suspend_ops); | |
45 | return 0; | |
46 | } | |
47 | late_initcall(shmobile_suspend_init); |