diff --git a/Documentation/devicetree/bindings/net/mdio-gpio.txt b/Documentation/devicetree/bindings/net/mdio-gpio.txt
index 8dbcf8295c6c..4d91a36c5cf5 100644
--- a/Documentation/devicetree/bindings/net/mdio-gpio.txt
+++ b/Documentation/devicetree/bindings/net/mdio-gpio.txt
@@ -2,6 +2,7 @@ MDIO on GPIOs
 
 Currently defined compatibles:
 - virtual,gpio-mdio
+- microchip,mdio-smi0
 
 MDC and MDIO lines connected to GPIO controllers are listed in the
 gpios property as described in section VIII.1 in the following order: