From: Wim Van Sebroeck <wim@iguana.be>
Date: Wed, 19 Nov 2008 20:02:02 +0000 (+0000)
Subject: [WATCHDOG] iTCO_wdt : correct status clearing
X-Git-Tag: v2.6.28-rc8~69^2~3
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c6904ddb976d99b77d91b78a0ce5bdfffb416c49;p=profile%2Fivi%2Fkernel-x86-ivi.git

[WATCHDOG] iTCO_wdt : correct status clearing

The iTCO_wdt code was not clearing the correct bits.
It now clears the timeout status bit and then the
SECOND_TO_STS bit and then the BOOT_STS bit.
Note: we should first clear the SECOND_TO_STS bit
before clearing the BOOT_STS bit.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---

diff --git a/drivers/watchdog/iTCO_wdt.c b/drivers/watchdog/iTCO_wdt.c
index 7548300..2b5409f 100644
--- a/drivers/watchdog/iTCO_wdt.c
+++ b/drivers/watchdog/iTCO_wdt.c
@@ -684,8 +684,9 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
 			TCOBASE);
 
 	/* Clear out the (probably old) status */
-	outb(0, TCO1_STS);
-	outb(3, TCO2_STS);
+	outb(8, TCO1_STS);	/* Clear the Time Out Status bit */
+	outb(2, TCO2_STS);	/* Clear SECOND_TO_STS bit */
+	outb(4, TCO2_STS);	/* Clear BOOT_STS bit */
 
 	/* Make sure the watchdog is not running */
 	iTCO_wdt_stop();