diff --git a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
index d1eb55c855b3..44617c8e0773 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
@@ -198,9 +198,9 @@ vdd_log: vdd-log {
 		regulator-name = "vdd_log";
 		regulator-always-on;
 		regulator-boot-on;
-		regulator-min-microvolt = <800000>;
+		regulator-min-microvolt = <450000>;
 		regulator-max-microvolt = <1400000>;
-		vin-supply = <&vcc3v3_sys>;
+		pwm-supply = <&vcc3v3_sys>;
 	};
 };