linux-kernel - [PATCH v2 8/8] ARM: dts: s5pv210: Fix infinite interrupt in soft mode

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Message-Id: <20170311172527.16368-9-krzk@kernel.org>
Date:   Sat, 11 Mar 2017 19:25:27 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Wim Van Sebroeck <wim@...ana.be>,
        Guenter Roeck <linux@...ck-us.net>,
        Rob Herring <robh+dt@...nel.org>,
        Kukjin Kim <kgene@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Javier Martinez Canillas <javier@....samsung.com>,
        linux-watchdog@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org
Subject: [PATCH v2 8/8] ARM: dts: s5pv210: 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@...nel.org>
---
 arch/arm/boot/dts/s5pv210.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/s5pv210.dtsi b/arch/arm/boot/dts/s5pv210.dtsi
index a853918be43f..726c5d0dbd5b 100644
--- a/arch/arm/boot/dts/s5pv210.dtsi
+++ b/arch/arm/boot/dts/s5pv210.dtsi
@@ -310,7 +310,7 @@
 		};
 
 		watchdog: watchdog@...00000 {
-			compatible = "samsung,s3c2410-wdt";
+			compatible = "samsung,s3c6410-wdt";
 			reg = <0xe2700000 0x1000>;
 			interrupt-parent = <&vic0>;
 			interrupts = <26>;
-- 
2.9.3