| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame] | 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 <linux/cpu.h> |
| 16 | |
| 17 | #include <asm/io.h> |
| 18 | #include <asm/system_misc.h> |
| 19 | |
| 20 | #include "common.h" |
| 21 | |
| 22 | static int shmobile_suspend_default_enter(suspend_state_t suspend_state) |
| 23 | { |
| 24 | cpu_do_idle(); |
| 25 | return 0; |
| 26 | } |
| 27 | |
| 28 | static int shmobile_suspend_begin(suspend_state_t state) |
| 29 | { |
| 30 | cpu_idle_poll_ctrl(true); |
| 31 | return 0; |
| 32 | } |
| 33 | |
| 34 | static void shmobile_suspend_end(void) |
| 35 | { |
| 36 | cpu_idle_poll_ctrl(false); |
| 37 | } |
| 38 | |
| 39 | struct platform_suspend_ops shmobile_suspend_ops = { |
| 40 | .begin = shmobile_suspend_begin, |
| 41 | .end = shmobile_suspend_end, |
| 42 | .enter = shmobile_suspend_default_enter, |
| 43 | .valid = suspend_valid_only_mem, |
| 44 | }; |
| 45 | |
| 46 | int __init shmobile_suspend_init(void) |
| 47 | { |
| 48 | suspend_set_ops(&shmobile_suspend_ops); |
| 49 | return 0; |
| 50 | } |