diff --git a/Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.yaml b/Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.yaml
index 4b7ed135570155790ae181243fa9972946d07b4d..9c50766bf690fd0f6e4a5517edbd319502f10fad 100644
--- a/Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.yaml
@@ -30,6 +30,11 @@ properties:
   clocks:
     maxItems: 1
 
+  fsl,ext-reset-output:
+    description:
+      When set, wdog can generate external reset from the wdog_any pin.
+    type: boolean
+
 required:
   - compatible
   - interrupts