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diff --git a/Documentation/devicetree/bindings/sound/rt1308.txt b/Documentation/devicetree/bindings/sound/rt1308.txt
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+RT1308 audio Amplifier
+
+This device supports I2C only.
+
+Required properties:
+
+- compatible : "realtek,rt1308".
+
+- reg : The I2C address of the device.
+
+
+Example:
+
+rt1308: rt1308@10 {
+	compatible = "realtek,rt1308";
+	reg = <0x10>;
+};