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diff --git a/Documentation/devicetree/bindings/interrupt-controller/allwinner,sun4i-ic.txt b/Documentation/devicetree/bindings/interrupt-controller/allwinner,sun4i-ic.txt
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+Allwinner Sunxi Interrupt Controller
+
+Required properties:
+
+- compatible : should be "allwinner,sun4i-a10-ic"
+- reg : Specifies base physical address and size of the registers.
+- interrupt-controller : Identifies the node as an interrupt controller
+- #interrupt-cells : Specifies the number of cells needed to encode an
+  interrupt source. The value shall be 1.
+
+Example:
+
+intc: interrupt-controller {
+	compatible = "allwinner,sun4i-a10-ic";
+	reg = <0x01c20400 0x400>;
+	interrupt-controller;
+	#interrupt-cells = <1>;
+};