Blame view

kernel/linux-imx6_3.14.28/arch/arm/mach-shmobile/suspend.c 1016 Bytes
6b13f685e   김민수   BSP 최초 추가
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
  /*
   * Suspend-to-RAM support code for SH-Mobile ARM
   *
   *  Copyright (C) 2011 Magnus Damm
   *
   * This file is subject to the terms and conditions of the GNU General Public
   * License.  See the file "COPYING" in the main directory of this archive
   * for more details.
   */
  
  #include <linux/pm.h>
  #include <linux/suspend.h>
  #include <linux/module.h>
  #include <linux/err.h>
  #include <linux/cpu.h>
  
  #include <asm/io.h>
  #include <asm/system_misc.h>
  
  static int shmobile_suspend_default_enter(suspend_state_t suspend_state)
  {
  	cpu_do_idle();
  	return 0;
  }
  
  static int shmobile_suspend_begin(suspend_state_t state)
  {
  	cpu_idle_poll_ctrl(true);
  	return 0;
  }
  
  static void shmobile_suspend_end(void)
  {
  	cpu_idle_poll_ctrl(false);
  }
  
  struct platform_suspend_ops shmobile_suspend_ops = {
  	.begin		= shmobile_suspend_begin,
  	.end		= shmobile_suspend_end,
  	.enter		= shmobile_suspend_default_enter,
  	.valid		= suspend_valid_only_mem,
  };
  
  int __init shmobile_suspend_init(void)
  {
  	suspend_set_ops(&shmobile_suspend_ops);
  	return 0;
  }