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diff --git a/Documentation/devicetree/bindings/sound/wm8770.txt b/Documentation/devicetree/bindings/sound/wm8770.txt
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+WM8770 audio CODEC
+
+This device supports SPI.
+
+Required properties:
+
+  - compatible : "wlf,wm8770"
+
+  - reg : the chip select number.
+
+Example:
+
+codec: wm8770@1 {
+	compatible = "wlf,wm8770";
+	reg = <1>;
+};