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diff --git a/Documentation/devicetree/bindings/sound/bt-sco.txt b/Documentation/devicetree/bindings/sound/bt-sco.txt
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index 000000000000..29b8e5d40203
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+++ b/Documentation/devicetree/bindings/sound/bt-sco.txt
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+Bluetooth-SCO audio CODEC
+
+This device support generic Bluetooth SCO link.
+
+Required properties:
+
+  - compatible : "delta,dfbmcs320"
+
+Example:
+
+codec: bt_sco {
+	compatible = "delta,dfbmcs320";
+};