From: Sam Protsenko <semen.protsenko@xxxxxxxxxx> commit 33950f9a36aca55c2b1e6062d9b29f3e97f91c40 upstream. Exynos7 watchdog driver is clearly indicating that its dts node must define syscon phandle property. That was probably forgotten, so add it. Signed-off-by: Sam Protsenko <semen.protsenko@xxxxxxxxxx> Fixes: 2b9366b66967 ("watchdog: s3c2410_wdt: Add support for Watchdog device on Exynos7") Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx> Reviewed-by: Rob Herring <robh@xxxxxxxxxx> Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx> Link: https://lore.kernel.org/r/20211107202943.8859-2-semen.protsenko@xxxxxxxxxx Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx> Signed-off-by: Wim Van Sebroeck <wim@xxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- a/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml +++ b/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml @@ -39,8 +39,8 @@ properties: samsung,syscon-phandle: $ref: /schemas/types.yaml#/definitions/phandle description: - Phandle to the PMU system controller node (in case of Exynos5250 - and Exynos5420). + Phandle to the PMU system controller node (in case of Exynos5250, + Exynos5420 and Exynos7). required: - compatible @@ -58,6 +58,7 @@ allOf: enum: - samsung,exynos5250-wdt - samsung,exynos5420-wdt + - samsung,exynos7-wdt then: required: - samsung,syscon-phandle