diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-2.dts b/arch/arm/boot/dts/sun8i-h3-orangepi-2.dts
index 415e0aeed..d99b7a5a9 100644
--- a/arch/arm/boot/dts/sun8i-h3-orangepi-2.dts
+++ b/arch/arm/boot/dts/sun8i-h3-orangepi-2.dts
@@ -197,6 +197,7 @@
 		compatible = "silergy,sy8106a";
 		reg = <0x65>;
 		regulator-name = "vdd-cpux";
+		silergy,fixed-microvolt = <1000000>;
 		regulator-min-microvolt = <1000000>;
 		regulator-max-microvolt = <1400000>;
 		regulator-boot-on;
diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts b/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts
index 4e64e24cb..7b7e00672 100644
--- a/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts
+++ b/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts
@@ -221,6 +221,7 @@
 		compatible = "silergy,sy8106a";
 		reg = <0x65>;
 		regulator-name = "vdd-cpux";
+		silergy,fixed-microvolt = <1000000>;
 		regulator-min-microvolt = <1000000>;
 		regulator-max-microvolt = <1400000>;
 		regulator-boot-on;
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-pc2.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-pc2.dts
index 1c5186246..75f2b0e78 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-pc2.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-pc2.dts
@@ -242,6 +242,7 @@
 	vdd_cpu: regulator@65 {
 		compatible = "silergy,sy8106a";
 		reg = <0x65>;
+		silergy,fixed-microvolt = <1000000>;
 		regulator-min-microvolt = <1000000>;
 		regulator-max-microvolt = <1400000>;
 		regulator-ramp-delay = <200>;
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-prime.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-prime.dts
index 2e5e6ad78..256331759 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-prime.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-prime.dts
@@ -237,6 +237,7 @@
 	vdd_cpu: regulator@65 {
 		compatible = "silergy,sy8106a";
 		reg = <0x65>;
+		silergy,fixed-microvolt = <1000000>;
 		regulator-min-microvolt = <1000000>;
 		regulator-max-microvolt = <1400000>;
 		regulator-ramp-delay = <200>;