WORKAROUND: arm64: dts: qcom: Add qref supply for QCS8300

The QMP PCIe PHYs on QCS8300 require a dedicated qref voltage supply for
stable operation.

Add the vdda-qref-supply for both PCIe PHY instances on the QCS8300-RIDE
Monaco-evk. Without this supply, the system may occasionally crash mainly
in system resume case.

Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>

Author: krishnachaitanya-linux

arch/arm64/boot/dts/qcom/monaco-evk.dts

@@ -556,6 +556,7 @@
 &pcie0_phy {
 	vdda-phy-supply = <&vreg_l6a>;
 	vdda-pll-supply = <&vreg_l5a>;
+	vdda-qref-supply = <&vreg_l4a>;
 
 	status = "okay";
 };
@@ -575,6 +576,7 @@
 &pcie1_phy {
 	vdda-phy-supply = <&vreg_l6a>;
 	vdda-pll-supply = <&vreg_l5a>;
+	vdda-qref-supply = <&vreg_l4a>;
 
 	status = "okay";
 };

arch/arm64/boot/dts/qcom/qcs8300-ride.dts

@@ -602,7 +602,8 @@
 
 &pcie0_phy {
 	vdda-phy-supply = <&vreg_l6a>;
-	vdda-pll-supply = <&vreg_l4a>;
+	vdda-pll-supply = <&vreg_l5a>;
+	vdda-qref-supply = <&vreg_l4a>;
 
 	status = "okay";
 };
@@ -622,6 +623,7 @@
 &pcie1_phy {
 	vdda-phy-supply = <&vreg_l6a>;
 	vdda-pll-supply = <&vreg_l5a>;
+	vdda-qref-supply = <&vreg_l4a>;
 
 	status = "okay";
 };