diff --git a/arch/arm64/boot/dts/rockchip/rk3566-rk817-eink-w103.dts b/arch/arm64/boot/dts/rockchip/rk3566-rk817-eink-w103.dts
index 3e5f82852660..f934c3126b86 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-rk817-eink-w103.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3566-rk817-eink-w103.dts
@@ -542,8 +542,8 @@
 			vccio_acodec: LDO_REG4 {
 				regulator-always-on;
 				regulator-boot-on;
-				regulator-min-microvolt = <3300000>;
-				regulator-max-microvolt = <3300000>;
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3000000>;
 				regulator-name = "vccio_acodec";
 				regulator-state-mem {
 					regulator-off-in-suspend;
diff --git a/arch/arm64/boot/dts/rockchip/rk3566-rk817-eink.dts b/arch/arm64/boot/dts/rockchip/rk3566-rk817-eink.dts
index e483e0cc34aa..4f3e218b59df 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-rk817-eink.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3566-rk817-eink.dts
@@ -396,8 +396,8 @@
 			vccio_acodec: LDO_REG4 {
 				regulator-always-on;
 				regulator-boot-on;
-				regulator-min-microvolt = <3300000>;
-				regulator-max-microvolt = <3300000>;
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3000000>;
 				regulator-name = "vccio_acodec";
 				regulator-state-mem {
 					regulator-off-in-suspend;
diff --git a/arch/arm64/boot/dts/rockchip/rk3566-rk817-tablet-k108.dts b/arch/arm64/boot/dts/rockchip/rk3566-rk817-tablet-k108.dts
index f00714e39511..dfcf9a2b4f54 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-rk817-tablet-k108.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3566-rk817-tablet-k108.dts
@@ -724,8 +724,8 @@
 			vccio_acodec: LDO_REG4 {
 				regulator-always-on;
 				regulator-boot-on;
-				regulator-min-microvolt = <3300000>;
-				regulator-max-microvolt = <3300000>;
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3000000>;
 				regulator-name = "vccio_acodec";
 				regulator-state-mem {
 					regulator-off-in-suspend;
diff --git a/arch/arm64/boot/dts/rockchip/rk3566-rk817-tablet-rkg11.dts b/arch/arm64/boot/dts/rockchip/rk3566-rk817-tablet-rkg11.dts
index 323471509afd..4578517486dd 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-rk817-tablet-rkg11.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3566-rk817-tablet-rkg11.dts
@@ -542,8 +542,8 @@
 			vccio_acodec: LDO_REG4 {
 				regulator-always-on;
 				regulator-boot-on;
-				regulator-min-microvolt = <3300000>;
-				regulator-max-microvolt = <3300000>;
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3000000>;
 				regulator-name = "vccio_acodec";
 				regulator-state-mem {
 					regulator-off-in-suspend;
diff --git a/arch/arm64/boot/dts/rockchip/rk3566-rk817-tablet.dts b/arch/arm64/boot/dts/rockchip/rk3566-rk817-tablet.dts
index b1629d722493..b71f170cafcd 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-rk817-tablet.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3566-rk817-tablet.dts
@@ -656,8 +656,8 @@
 			vccio_acodec: LDO_REG4 {
 				regulator-always-on;
 				regulator-boot-on;
-				regulator-min-microvolt = <3300000>;
-				regulator-max-microvolt = <3300000>;
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3000000>;
 				regulator-name = "vccio_acodec";
 				regulator-state-mem {
 					regulator-off-in-suspend;