diff --git a/Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt b/Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt
index 6a6cf5de08b0..1cc40663b7a2 100644
--- a/Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt
+++ b/Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt
@@ -21,6 +21,7 @@ Required properties:
   - phys: phandle to the D-PHY
   - phy-names: must be "dphy"
   - resets: phandle to the reset controller driving the encoder
+  - vcc-dsi-supply: the VCC-DSI power supply of the DSI encoder
 
   - ports: A ports node with endpoint definitions as defined in
     Documentation/devicetree/bindings/media/video-interfaces.txt. The