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diff --git a/Documentation/devicetree/bindings/watchdog/moxa,moxart-watchdog.txt b/Documentation/devicetree/bindings/watchdog/moxa,moxart-watchdog.txt
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+++ b/Documentation/devicetree/bindings/watchdog/moxa,moxart-watchdog.txt
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+MOXA ART Watchdog timer
+
+Required properties:
+
+- compatible : Must be "moxa,moxart-watchdog"
+- reg : Should contain registers location and length
+- clocks : Should contain phandle for the clock that drives the counter
+
+Example:
+
+        watchdog: watchdog@98500000 {
+                compatible = "moxa,moxart-watchdog";
+                reg = <0x98500000 0x10>;
+                clocks = <&coreclk>;
+        };