openwrtv4/target/linux/s3c24xx/patches-2.6.24/1159-Fixup-hang-on-resume-caused-by-the-s3c2410-touch-scr.patch

From 7b7d70785f1b3c1421d56ee8140578fea3b90f9c Mon Sep 17 00:00:00 2001
From: Holger Freyther <zecke@openmoko.org>
Date: Thu, 15 May 2008 21:47:56 +0100
Subject: [PATCH] Fixup hang on resume caused by the s3c2410 touch screen driver

From dc6d335b467646d802a21ea6b925ee97e83e07be Mon Sep 17 00:00:00 2001
From: Holger Freyther <zecke@openmoko.org>
Date: Thu, 15 May 2008 01:16:23 +0200
Subject: [PATCH] Do not use msleep in the resume path of s3c2410_ts as it
might lockup

For some reason msleep might set the only task running into a suspended
state and no timer will ever wake it up. Use mdelay to avoid this. I was not
able to understand the reasoning of sleeping after enabling the clock. So we
might just remove the msleep/mdelay at all and be fine.

Signed-Off-By: Holger Freyther <zecke@openmoko.org>
---
 drivers/input/touchscreen/s3c2410_ts.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c
index 68071c2..6d395ca 100644
--- a/drivers/input/touchscreen/s3c2410_ts.c
+++ b/drivers/input/touchscreen/s3c2410_ts.c
@@ -356,7 +356,7 @@ static int s3c2410ts_resume(struct platform_device *pdev)
 		( struct s3c2410_ts_mach_info *)pdev->dev.platform_data;
 
 	clk_enable(adc_clock);
-	msleep(1);
+	mdelay(1);
 
 	enable_irq(IRQ_ADC);
 	enable_irq(IRQ_TC);
-- 
1.5.6.5