ARM: shmobile: r8a7740: Add CPU sleep suspend

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>
[ horms@verge.net.au: Added missing includes ]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm/mach-shmobile/board-armadillo800eva.c b/arch/arm/mach-shmobile/board-armadillo800eva.c
index e7912447ad50..65731370da81 100644
--- a/arch/arm/mach-shmobile/board-armadillo800eva.c
+++ b/arch/arm/mach-shmobile/board-armadillo800eva.c
@@ -1181,6 +1181,8 @@ static void __init eva_init(void)
         rmobile_add_device_to_domain("A4LC", &hdmi_lcdc_device);
         if (usb)
                 rmobile_add_device_to_domain("A3SP", usb);
+
+        r8a7740_pm_init();
 }
 
 static void __init eva_earlytimer_init(void)