diff --git a/arch/arm64/boot/dts/renesas/r8a77990.dtsi b/arch/arm64/boot/dts/renesas/r8a77990.dtsi
index 233af3081e84..50fbf7251665 100644
--- a/arch/arm64/boot/dts/renesas/r8a77990.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77990.dtsi
@@ -47,16 +47,20 @@
 	cluster1_opp: opp-table-1 {
 		compatible = "operating-points-v2";
 		opp-shared;
+
 		opp-800000000 {
 			opp-hz = /bits/ 64 <800000000>;
+			opp-microvolt = <1030000>;
 			clock-latency-ns = <300000>;
 		};
 		opp-1000000000 {
 			opp-hz = /bits/ 64 <1000000000>;
+			opp-microvolt = <1030000>;
 			clock-latency-ns = <300000>;
 		};
 		opp-1200000000 {
 			opp-hz = /bits/ 64 <1200000000>;
+			opp-microvolt = <1030000>;
 			clock-latency-ns = <300000>;
 			opp-suspend;
 		};