From 056879d2f244001b2888cdc8cf868c33ca8b23a0 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Thu, 10 Nov 2011 00:44:01 +0100 Subject: [PATCH] ARM: mach-shmobile: sh7372 A3SP no_suspend_console fix If "no_suspend_irq" is used on the sh7372 Mackerel board with v3.2-rc1 then Suspend-to-RAM fails because the serial console tries to write to the SCIF driver even though the power domain is turned off. This patch checks the state of "console_suspend_enabled" to see if A3SP should be forced enabled. Signed-off-by: Magnus Damm Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/pm-sh7372.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/mach-shmobile/pm-sh7372.c b/arch/arm/mach-shmobile/pm-sh7372.c index e26138352f07..78c98a847433 100644 --- a/arch/arm/mach-shmobile/pm-sh7372.c +++ b/arch/arm/mach-shmobile/pm-sh7372.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include @@ -469,6 +470,11 @@ void __init sh7372_pm_init(void) /* do not convert A3SM, A3SP, A3SG, A4R power down into A4S */ __raw_writel(0, PDNSEL); + /* serial consoles make use of SCIF hardware located in A3SP, + * keep such power domain on if "no_console_suspend" is set. + */ + sh7372_a3sp.stay_on = !console_suspend_enabled; + sh7372_suspend_init(); sh7372_cpuidle_init(); }