13baf88bd6
Add the lighest possible sleep mode on Cortex-A9 cores: CPU sleep. It is entered by a simple dsb and wfi instruction via cpu_do_idle(). As just clocks are stopped there is no need to save or restore any state of the system. Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
32 lines
666 B
C
32 lines
666 B
C
/*
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* sh73a0 Power management support
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*
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* Copyright (C) 2012 Bastian Hecht <hechtb+renesas@gmail.com>
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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/suspend.h>
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#include <mach/common.h>
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#ifdef CONFIG_SUSPEND
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static int sh73a0_enter_suspend(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 void sh73a0_suspend_init(void)
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{
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shmobile_suspend_ops.enter = sh73a0_enter_suspend;
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}
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#else
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static void sh73a0_suspend_init(void) {}
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#endif
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void __init sh73a0_pm_init(void)
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{
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sh73a0_suspend_init();
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}
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