diff --git a/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt b/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt
index 5ff37c68c941eaac5ab59918b0ada690a18f4988..50b55080017e5f6315c296e0cb6a0df4c98df270 100644
--- a/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt
+++ b/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt
@@ -31,6 +31,8 @@ Optional properties:
 			  VSC8531_LINK_100_ACTIVITY (2),
 			  VSC8531_LINK_ACTIVITY (0) and
 			  VSC8531_DUPLEX_COLLISION (8).
+- vsc8531,led-[N]-combine-disable	: Disable the combined mode for LED[N].
+			  This disables the second mode if a combined mode is selected.
 
 
 Table: 1 - Edge rate change