diff --git a/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts b/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts
index 53805555dd2d..9acf33aae902 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts
@@ -1932,4 +1932,12 @@ usbc_vbus: regulator-usbc-vbus {
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
 	};
+
+	vdd_dsi_csi: regulator-vdd-dsi-csi {
+		compatible = "regulator-fixed";
+		regulator-name = "AVDD_DSI_CSI_1V2";
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+		vin-supply = <&pp1200_avdd>;
+	};
 };