From: Krzysztof Kozlowski <krzk@kernel.org>
Date: Sat, 11 Mar 2017 17:25:26 +0000 (+0200)
Subject: ARM: dts: s3c64xx: Fix infinite interrupt in soft mode
X-Git-Tag: v4.12-rc1~56^2~15^2~2
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9f55342cc2de36d0720df1e7fc902eac82c145cf;p=karo-tx-linux.git

ARM: dts: s3c64xx: Fix infinite interrupt in soft mode

In soft (no-reboot) mode, the driver self-pings watchdog upon expiration
of an interrupt.  The interrupt has to be cleared, because otherwise
system enters infinite interrupt handling loop.

Use a samsung,s3c6410-wdt compatible to select appropriate quirk for
clearing the watchdog interrupt.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
---

diff --git a/arch/arm/boot/dts/s3c64xx.dtsi b/arch/arm/boot/dts/s3c64xx.dtsi
index 6caec5f27d38..c55cbb3af2c0 100644
--- a/arch/arm/boot/dts/s3c64xx.dtsi
+++ b/arch/arm/boot/dts/s3c64xx.dtsi
@@ -94,7 +94,7 @@
 		};
 
 		watchdog: watchdog@7e004000 {
-			compatible = "samsung,s3c2410-wdt";
+			compatible = "samsung,s3c6410-wdt";
 			reg = <0x7e004000 0x1000>;
 			interrupt-parent = <&vic0>;
 			interrupts = <26>;