diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 13c9515260ef..1c3a7371a2d3 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -2218,6 +2218,11 @@ uart15: serial@a9c000 {
 			};
 		};
 
+		refgen: regulator@ff1000 {
+			compatible = "qcom,sdm845-refgen-regulator";
+			reg = <0x0 0x00ff1000 0x0 0x60>;
+		};
+
 		llcc: system-cache-controller@1100000 {
 			compatible = "qcom,sdm845-llcc";
 			reg = <0 0x01100000 0 0x45000>, <0 0x01180000 0 0x50000>,
@@ -4750,6 +4755,8 @@ mdss_dsi0: dsi@ae94000 {
 
 				phys = <&mdss_dsi0_phy>;
 
+				refgen-supply = <&refgen>;
+
 				status = "disabled";
 
 				#address-cells = <1>;
@@ -4824,6 +4831,8 @@ mdss_dsi1: dsi@ae96000 {
 
 				phys = <&mdss_dsi1_phy>;
 
+				refgen-supply = <&refgen>;
+
 				status = "disabled";
 
 				#address-cells = <1>;