ARM: dts: msm: add DSI PHY refgen for sdm845 v2

Add refgen regulator support for DSI PHY, so it can be
enabled/disabled when required.

Change-Id: I3aba81787f82dbf55df82b16cd8644ea9bbba047
Signed-off-by: Ingrid Gallardo <ingridg@codeaurora.org>
diff --git a/arch/arm64/boot/dts/qcom/sdm845-v2.dtsi b/arch/arm64/boot/dts/qcom/sdm845-v2.dtsi
index 0b55736..1e3ce3e 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-v2.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-v2.dtsi
@@ -911,6 +911,54 @@
 	qcom,sde-min-core-ib-kbps = <4800000>;
 };
 
+&mdss_dsi0 {
+	qcom,core-supply-entries {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		qcom,core-supply-entry@0 {
+			reg = <0>;
+			qcom,supply-name = "refgen";
+			qcom,supply-min-voltage = <0>;
+			qcom,supply-max-voltage = <0>;
+			qcom,supply-enable-load = <0>;
+			qcom,supply-disable-load = <0>;
+		};
+	};
+};
+
+&mdss_dsi1 {
+	qcom,core-supply-entries {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		qcom,core-supply-entry@0 {
+			reg = <0>;
+			qcom,supply-name = "refgen";
+			qcom,supply-min-voltage = <0>;
+			qcom,supply-max-voltage = <0>;
+			qcom,supply-enable-load = <0>;
+			qcom,supply-disable-load = <0>;
+		};
+	};
+};
+
+&sde_dp {
+	qcom,core-supply-entries {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		qcom,core-supply-entry@0 {
+			reg = <0>;
+			qcom,supply-name = "refgen";
+			qcom,supply-min-voltage = <0>;
+			qcom,supply-max-voltage = <0>;
+			qcom,supply-enable-load = <0>;
+			qcom,supply-disable-load = <0>;
+		};
+	};
+};
+
 &energy_costs {
 	CPU_COST_0: core-cost0 {
 		busy-cost-data = <