diff --git a/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt b/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt
index 61916f15a949..7e6d0e193d90 100644
--- a/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt
+++ b/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt
@@ -6,7 +6,7 @@ Required properties:
  - rockchip,grf : phandle to the syscon managing the "general
    register files"
  - #phy-cells: must be 0
- - reg: PHY configure reg address offset in "general
+ - reg-offset: PHY configure reg address offset in "general
    register files"
 
 Example:
@@ -14,6 +14,6 @@ Example:
 emmcphy: phy {
 	compatible = "rockchip,rk3399-emmc-phy";
 	rockchip,grf = <&grf>;
-	reg = <0xf780>;
+	reg-offset = <0xf780>;
 	#phy-cells = <0>;
 };
diff --git a/drivers/phy/phy-rockchip-emmc.c b/drivers/phy/phy-rockchip-emmc.c
index 887b4c27195f..416e15db86a9 100644
--- a/drivers/phy/phy-rockchip-emmc.c
+++ b/drivers/phy/phy-rockchip-emmc.c
@@ -186,7 +186,7 @@ static int rockchip_emmc_phy_probe(struct platform_device *pdev)
 	if (!rk_phy)
 		return -ENOMEM;
 
-	if (of_property_read_u32(dev->of_node, "reg", &reg_offset)) {
+	if (of_property_read_u32(dev->of_node, "reg-offset", &reg_offset)) {
 		dev_err(dev, "missing reg property in node %s\n",
 			dev->of_node->name);
 		return -EINVAL;