diff --git a/Documentation/devicetree/bindings/sound/sgtl5000.txt b/Documentation/devicetree/bindings/sound/sgtl5000.txt
index 1aab40339617..0e5e4eb3ef1b 100644
--- a/Documentation/devicetree/bindings/sound/sgtl5000.txt
+++ b/Documentation/devicetree/bindings/sound/sgtl5000.txt
@@ -18,6 +18,14 @@ Required properties:
 	If this node is not mentionned or the value is unknown, then
 	the value is set to 1.25V.
 
+- VDDA-supply : the regulator provider of VDDA
+
+- VDDIO-supply: the regulator provider of VDDIO
+
+Optional properties:
+
+- VDDD-supply : the regulator provider of VDDD
+
 Example:
 
 codec: sgtl5000@0a {
@@ -26,4 +34,6 @@ codec: sgtl5000@0a {
 	clocks = <&clks 150>;
 	micbias-resistor-k-ohms = <2>;
 	micbias-voltage-m-volts = <2250>;
+	VDDA-supply = <&reg_3p3v>;
+	VDDIO-supply = <&reg_3p3v>;
 };