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diff --git a/Documentation/devicetree/bindings/tty/serial/via,vt8500-uart.txt b/Documentation/devicetree/bindings/tty/serial/via,vt8500-uart.txt
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+VIA/Wondermedia VT8500 UART Controller
+-----------------------------------------------------
+
+Required properties:
+- compatible : "via,vt8500-uart"
+- reg : Should contain 1 register ranges(address and length)
+- interrupts : UART interrupt
+- clocks : phandle to the uart source clock (usually a 24Mhz fixed clock)
+
+Example:
+
+        uart@d8210000 {
+                compatible = "via,vt8500-uart";
+                reg = <0xd8210000 0x1040>;
+                interrupts = <47>;
+                clocks = <&ref24>;
+        };