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diff --git a/Documentation/devicetree/bindings/thermal/rcar-thermal.txt b/Documentation/devicetree/bindings/thermal/rcar-thermal.txt
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+* Renesas R-Car Thermal
+
+Required properties:
+- compatible		: "renesas,rcar-thermal"
+- reg			: Address range of the thermal registers.
+			  The 1st reg will be recognized as common register
+			  if it has "interrupts".
+
+Option properties:
+
+- interrupts		: use interrupt
+
+Example (non interrupt support):
+
+thermal@e61f0100 {
+	compatible = "renesas,rcar-thermal";
+	reg = <0xe61f0100 0x38>;
+};
+
+Example (interrupt support):
+
+thermal@e61f0000 {
+	compatible = "renesas,rcar-thermal";
+	reg = <0xe61f0000 0x14
+		0xe61f0100 0x38
+		0xe61f0200 0x38
+		0xe61f0300 0x38>;
+	interrupts = <0 69 4>;
+};