diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts b/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts
index ff57c8a9b96258..ec6b60452b84b7 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts
@@ -324,8 +324,9 @@
 		regulators {
 			vdd_center: DCDC_REG1 {
 				regulator-name = "vdd_center";
-				regulator-min-microvolt = <900000>;
-				regulator-max-microvolt = <900000>;
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-ramp-delay = <6001>;
 				regulator-always-on;
 				regulator-boot-on;
 				regulator-state-mem {