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ARM: shmobile: sh73a0: Add CPU sleep suspend

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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>
This commit is contained in:
Bastian Hecht
2012-12-05 12:13:06 +00:00
committed by Simon Horman
parent 8a21cdaee8
commit 13baf88bd6
4 changed files with 36 additions and 0 deletions
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arch/arm/mach-shmobile/include/mach/common.h
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@@ -40,6 +40,7 @@ extern void sh73a0_add_early_devices(void);
extern void sh73a0_add_standard_devices(void);
extern void sh73a0_clock_init(void);
extern void sh73a0_pinmux_init(void);
extern void sh73a0_pm_init(void);
extern struct clk sh73a0_extal1_clk;
extern struct clk sh73a0_extal2_clk;
extern struct clk sh73a0_extcki_clk;