Commit 7e93df35 authored Mar 11, 2017 by Krzysztof Kozlowski

ARM: dts: exynos: Fix infinite interrupt in soft mode on Exynos4210 and Exynos5440



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>

parent de44097b

arch/arm/boot/dts/exynos4210.dtsi

+1 −1

Original line number	Diff line number	Diff line
		@@ -120,7 +120,7 @@
		};

		watchdog: watchdog@10060000 {
		compatible = "samsung,s3c2410-wdt";
		compatible = "samsung,s3c6410-wdt";
		reg = <0x10060000 0x100>;
		interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
		clocks = <&clock CLK_WDT>;

arch/arm/boot/dts/exynos5440.dtsi

+1 −1

Original line number	Diff line number	Diff line
		@@ -189,7 +189,7 @@
		};

		watchdog@110000 {
		compatible = "samsung,s3c2410-wdt";
		compatible = "samsung,s3c6410-wdt";
		reg = <0x110000 0x1000>;
		interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
		clocks = <&clock CLK_B_125>;

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