diff --git a/Documentation/devicetree/bindings/net/brcm,unimac-mdio.yaml b/Documentation/devicetree/bindings/net/brcm,unimac-mdio.yaml
index 6684810fcbf01..23dfe0838dca4 100644
--- a/Documentation/devicetree/bindings/net/brcm,unimac-mdio.yaml
+++ b/Documentation/devicetree/bindings/net/brcm,unimac-mdio.yaml
@@ -24,6 +24,7 @@ properties:
       - brcm,genet-mdio-v5
       - brcm,asp-v2.0-mdio
       - brcm,asp-v2.1-mdio
+      - brcm,asp-v2.2-mdio
       - brcm,unimac-mdio
 
   reg: