diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts b/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts
index 4ad91b6f01d34..a51446482927c 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts
+++ b/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts
@@ -269,9 +269,12 @@ reg_dcdc1_323: dcdc1 {
 				regulator-min-microvolt = <900000>;
 				regulator-max-microvolt = <1160000>;
 				regulator-name = "vdd-cpub";
+				x-powers,polyphased = <&reg_dcdc2_323>;
 			};
 
-			/* DCDC2 is polyphased with DCDC1 */
+			reg_dcdc2_323: dcdc2 {
+				/* dual-phased with DCDC1 */
+			};
 
 			/* RISC-V management core supply */
 			reg_dcdc3_323: dcdc3 {
diff --git a/arch/arm64/boot/dts/allwinner/sun55i-h728-x96qpro+.dts b/arch/arm64/boot/dts/allwinner/sun55i-h728-x96qpro+.dts
index 68c5765c2e919..848b5abb4203f 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-h728-x96qpro+.dts
+++ b/arch/arm64/boot/dts/allwinner/sun55i-h728-x96qpro+.dts
@@ -285,9 +285,12 @@ reg_dcdc1_323: dcdc1 {
 				regulator-min-microvolt = <900000>;
 				regulator-max-microvolt = <1160000>;
 				regulator-name = "vdd-cpub";
+				x-powers,polyphased = <&reg_dcdc2_323>;
 			};
 
-			/* DCDC2 is polyphased with DCDC1 */
+			reg_dcdc2_323: dcdc2 {
+				/* dual-phased with DCDC1 */
+			};
 
 			reg_dcdc3_323: dcdc3 {
 				regulator-always-on;
diff --git a/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts b/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts
index 7b7ef54ec7684..ec69b409ac47f 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts
+++ b/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts
@@ -291,9 +291,12 @@ reg_dcdc1_323: dcdc1 {
 				regulator-min-microvolt = <900000>;
 				regulator-max-microvolt = <1160000>;
 				regulator-name = "vdd-cpub";
+				x-powers,polyphased = <&reg_dcdc2_323>;
 			};
 
-			/* DCDC2 is polyphased with DCDC1 */
+			reg_dcdc2_323: dcdc2 {
+				/* dual-phased with DCDC1 */
+			};
 
 			/* Some RISC-V management core related voltage */
 			reg_dcdc3_323: dcdc3 {
diff --git a/arch/arm64/boot/dts/allwinner/sun55i-t527-orangepi-4a.dts b/arch/arm64/boot/dts/allwinner/sun55i-t527-orangepi-4a.dts
index d07bb9193b438..e9e6d85fb84f7 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-t527-orangepi-4a.dts
+++ b/arch/arm64/boot/dts/allwinner/sun55i-t527-orangepi-4a.dts
@@ -322,9 +322,12 @@ reg_dcdc1_323: dcdc1 {
 				regulator-min-microvolt = <900000>;
 				regulator-max-microvolt = <1150000>;
 				regulator-name = "vdd-cpub";
+				x-powers,polyphased = <&reg_dcdc2_323>;
 			};
 
-			/* DCDC2 is polyphased with DCDC1 */
+			reg_dcdc2_323: dcdc2 {
+				/* dual-phased with DCDC1 */
+			};
 
 			/* Some RISC-V management core related voltage */
 			reg_dcdc3_323: dcdc3 {