[ARM] 4598/2: OSIRIS: Ensure we do not get nRSTOUT during suspend

Ensure nRSTOUT is not asserted during or on resume.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c2440/mach-osiris.c b/arch/arm/mach-s3c2440/mach-osiris.c
index be5377f128c4..c326983f4a8f 100644
--- a/arch/arm/mach-s3c2440/mach-osiris.c
+++ b/arch/arm/mach-s3c2440/mach-osiris.c
@@ -287,6 +287,10 @@ static int osiris_pm_suspend(struct sys_device *sd, pm_message_t state)
 
         __raw_writeb(tmp, OSIRIS_VA_CTRL0);
 
+        /* ensure that an nRESET is not generated on resume. */
+        s3c2410_gpio_setpin(S3C2410_GPA21, 1);
+        s3c2410_gpio_cfgpin(S3C2410_GPA21, S3C2410_GPA21_OUT);
+
         return 0;
 }
 
@@ -297,6 +301,8 @@ static int osiris_pm_resume(struct sys_device *sd)
 
         __raw_writeb(pm_osiris_ctrl0, OSIRIS_VA_CTRL0);
 
+        s3c2410_gpio_cfgpin(S3C2410_GPA21, S3C2410_GPA21_nRSTOUT);
+
         return 0;
 }