c3dada1894
This patch adds a simple Suspend-to-RAM implementation for SH-Mobile ARM. The struct shmobile_suspend_ops are kept global to allow cpu-specific code to override the callbacks if needed. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
48 lines
1,008 B
C
48 lines
1,008 B
C
/*
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* Suspend-to-RAM support code for SH-Mobile ARM
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*
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* Copyright (C) 2011 Magnus Damm
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/pm.h>
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#include <linux/suspend.h>
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#include <linux/module.h>
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#include <linux/err.h>
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#include <asm/system.h>
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#include <asm/io.h>
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static int shmobile_suspend_default_enter(suspend_state_t suspend_state)
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{
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cpu_do_idle();
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return 0;
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}
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static int shmobile_suspend_begin(suspend_state_t state)
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{
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disable_hlt();
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return 0;
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}
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static void shmobile_suspend_end(void)
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{
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enable_hlt();
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}
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struct platform_suspend_ops shmobile_suspend_ops = {
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.begin = shmobile_suspend_begin,
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.end = shmobile_suspend_end,
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.enter = shmobile_suspend_default_enter,
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.valid = suspend_valid_only_mem,
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};
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static int __init shmobile_suspend_init(void)
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{
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suspend_set_ops(&shmobile_suspend_ops);
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return 0;
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}
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late_initcall(shmobile_suspend_init);
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