diff --git a/arch/arm64/boot/dts/renesas/ulcb.dtsi b/arch/arm64/boot/dts/renesas/ulcb.dtsi
index 14b211f357f8..1f177af3eb9d 100644
--- a/arch/arm64/boot/dts/renesas/ulcb.dtsi
+++ b/arch/arm64/boot/dts/renesas/ulcb.dtsi
@@ -138,6 +138,10 @@ x23_clk: x23-clock {
 	};
 };
 
+&a57_0 {
+	cpu-supply = <&dvfs>;
+};
+
 &audio_clk_a {
 	clock-frequency = <22579200>;
 };