diff --git a/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt b/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt
index 6d593003c933..9059f54dc023 100644
--- a/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt
@@ -5,7 +5,8 @@ The watchdog supports a pre-timeout interrupt that fires 10ms before the
 expiry.
 
 Required properties:
-- compatible      : "nuvoton,npcm750-wdt" for NPCM750 (Poleg).
+- compatible      : "nuvoton,npcm750-wdt" for NPCM750 (Poleg), or
+                    "nuvoton,wpcm450-wdt" for WPCM450 (Hermon).
 - reg             : Offset and length of the register set for the device.
 - interrupts      : Contain the timer interrupt with flags for
                     falling edge.