ARM: imx: add standby mode support for suspend

Add standby mode support for suspend, to enter standby mode:

echo standby > /sys/power/state;

Use UART or RTC alarm to wake up system, when system enters
standby mode, SOC will enter STOP mode with ARM core kept
power on and 24M XTAL on.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>

diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index 13a6e1f..d205f36 100644 (file)
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -106,7 +106,7 @@ static inline void imx_scu_standby_enable(void) {}
 #endif
 void imx_src_init(void);
 void imx_gpc_init(void);
-void imx_gpc_pre_suspend(void);
+void imx_gpc_pre_suspend(bool arm_power_off);
 void imx_gpc_post_resume(void);
 void imx_gpc_mask_all(void);
 void imx_gpc_restore_all(void);

diff --cc arch/arm/mach-imx/gpc.c
Simple merge

diff --cc arch/arm/mach-imx/pm-imx6.c
Simple merge