diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt b/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
index b686ae7d24c9..247531edacc1 100644
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
@@ -25,6 +25,10 @@ Required properties:
 
 - rockchip,grf: phandle to the general register files syscon
 
+Optional properties:
+- phys : phandle for the PHY device
+- phy-names : should be "phy"
+
 Required nodes:
 
 The lvds has two video ports as described by