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[3/4,v2] ARM: s3c64xx: Save/restore S3C64XX_MODEM_MIFPCON on suspend/resume to preserve LCD bypass state.

Message ID 2533226.MVW0sQObxA@flatron (mailing list archive)
State New, archived
Headers show

Commit Message

Tomasz Figa Aug. 21, 2011, 11:49 p.m. UTC 
From 93932f60ba1fd8e1e0adaa206270f9e775d35981 Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Thu, 21 Jul 2011 14:57:51 +0200
Subject: [PATCH 3/4 v2] ARM: s3c64xx: Save/restore S3C64XX_MODEM_MIFPCON on
 suspend/resume to preserve LCD bypass state.

This patch makes sure that the LCD bypass state is preserved during sleep mode.
It achieves this by saving the S3C64XX_MODEM_MIFPCON register, which is not
handled by any other code currently.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
---
 arch/arm/mach-s3c64xx/pm.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
diff mbox

Patch

diff --git a/arch/arm/mach-s3c64xx/pm.c b/arch/arm/mach-s3c64xx/pm.c
index b9c0536..193e5ef 100644
--- a/arch/arm/mach-s3c64xx/pm.c
+++ b/arch/arm/mach-s3c64xx/pm.c
@@ -28,6 +28,7 @@ 
 #include <mach/regs-clock.h>
 #include <mach/regs-syscon-power.h>
 #include <mach/regs-gpio-memport.h>
+#include <mach/regs-modem.h>
 
 #ifdef CONFIG_S3C_PM_DEBUG_LED_SMDK
 void s3c_pm_debug_smdkled(u32 set, u32 clear)
@@ -86,6 +87,7 @@  static struct sleep_save misc_save[] = {
 	SAVE_ITEM(S3C64XX_MEM1CONSLP),
 
 	SAVE_ITEM(S3C64XX_SDMA_SEL),
+	SAVE_ITEM(S3C64XX_MODEM_MIFPCON),
 };
 
 void s3c_pm_configure_extint(void)