diff --git a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
index b0d8d3a9d79ebca2f8f32ff5b5ba7cdd6d097cab..20ada673ab0c17a1647be7eeb80353aedea64ceb 100644
--- a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
@@ -5,6 +5,7 @@ Required properties:
 - compatible should contain:
 	"mediatek,mt2701-wdt", "mediatek,mt6589-wdt": for MT2701
 	"mediatek,mt6589-wdt": for MT6589
+	"mediatek,mt6797-wdt", "mediatek,mt6589-wdt": for MT6797
 
 - reg : Specifies base physical address and size of the registers.