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>

diff --git a/arch/arm/boot/dts/exynos4210.dtsi b/arch/arm/boot/dts/exynos4210.dtsi
index 9d51d4d62d94b1f54600fc68434303337cc5eaff..e6e62103a71f3f21f7e1583de6a1a30eed68e31b 100644 (file)
--- a/arch/arm/boot/dts/exynos4210.dtsi
+++ b/arch/arm/boot/dts/exynos4210.dtsi
@@ -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>;

diff --git a/arch/arm/boot/dts/exynos5440.dtsi b/arch/arm/boot/dts/exynos5440.dtsi
index f3ac53af9cdb80d2b4f4af9c464ab18f8d2ca7c7..a4ea018464fc5d80c1c4b43dfc2545cc92be3345 100644 (file)
--- a/arch/arm/boot/dts/exynos5440.dtsi
+++ b/arch/arm/boot/dts/exynos5440.dtsi
@@ -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>;