diff --git a/arch/arm64/boot/dts/rockchip/rk1808-evb.dtsi b/arch/arm64/boot/dts/rockchip/rk1808-evb.dtsi
index c4daea857609..3f9bc6bc88fa 100644
--- a/arch/arm64/boot/dts/rockchip/rk1808-evb.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk1808-evb.dtsi
@@ -467,7 +467,7 @@
 			};
 
 			vdd1v5_dvp: LDO_REG6 {
-				regulator-min-microvolt = <1500000>;
+				regulator-min-microvolt = <1200000>;
 				regulator-max-microvolt = <1500000>;
 
 				regulator-name = "vdd1v5_dvp";