diff --git a/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt b/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt
index c5077a1f5cb3..d78d4a8fb868 100644
--- a/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt
@@ -4,6 +4,7 @@ Required properties:
  - compatible: must be one of:
 	- "aspeed,ast2400-wdt"
 	- "aspeed,ast2500-wdt"
+	- "aspeed,ast2600-wdt"
 
  - reg: physical base address of the controller and length of memory mapped
    region