diff --git a/Documentation/devicetree/bindings/soc/rockchip/grf.yaml b/Documentation/devicetree/bindings/soc/rockchip/grf.yaml
index 8c1c46fef1578bda3d534ac364dac3fa6198480d..62fa72cfea34fb9f313874c6e11b8f57bfe925cc 100644
--- a/Documentation/devicetree/bindings/soc/rockchip/grf.yaml
+++ b/Documentation/devicetree/bindings/soc/rockchip/grf.yaml
@@ -242,7 +242,6 @@ examples:
         clock-names = "phyclk";
         #clock-cells = <0>;
         clock-output-names = "clk_usbphy0_480m";
-        #phy-cells = <0>;
 
         u2phy0_host: host-port {
           #phy-cells = <0>;