[PATCH v1 3/4] arm64: dts: qcom: qcs8300: Add qref and refgen supply for PCIe PHYs

The QMP PCIe PHYs on QCS8300 require dedicated qref and refgen voltage
supplies for stable operation. Without these supplies, the system may
occasionally crash.

Add vdda-qref-supply and vdda-refgen-supply in the board files
(QCS8300-RIDE, Monaco-EVK and Monaco-Monza-SoM), and add refgen-supply
in the SoC DTSI (monaco.dtsi) since refgen is an on-chip regulator
shared across boards. The PHY driver votes for refgen3 directly as a
workaround for a hardware issue where QREF actually depends on refgen3
rather than refgen2 as documented.

Fixes: 33967eadb215 ("arm64: dts: qcom: qcs8300-ride: enable pcie0 interface")
Fixes: cdb613a84527 ("arm64: dts: qcom: qcs8300-ride: enable pcie1 interface")
Fixes: 41e2424651f7 ("arm64: dts: qcom: monaco-evk: Enable PCIe0 and PCIe1.")
Fixes: 5238f4e7169f ("arm64: dts: qcom: Add Monaco Monza SoM")
Signed-off-by: Ziyue Zhang <[email protected]>
---
 arch/arm64/boot/dts/qcom/monaco-evk.dts        | 4 ++++
 arch/arm64/boot/dts/qcom/monaco-monza-som.dtsi | 4 ++++
 arch/arm64/boot/dts/qcom/monaco.dtsi           | 4 ++++
 arch/arm64/boot/dts/qcom/qcs8300-ride.dts      | 4 ++++
 4 files changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/monaco-evk.dts b/arch/arm64/boot/dts/qcom/monaco-evk.dts
index 9d17ef7d2caf..c1f63a4ee243 100644
--- a/arch/arm64/boot/dts/qcom/monaco-evk.dts
+++ b/arch/arm64/boot/dts/qcom/monaco-evk.dts
@@ -623,6 +623,8 @@ &pcie0 {
 &pcie0_phy {
 	vdda-phy-supply = <&vreg_l6a>;
 	vdda-pll-supply = <&vreg_l5a>;
+	vdda-qref-supply = <&vreg_l4a>;
+	vdda-refgen-supply = <&vreg_l7a>;
 
 	status = "okay";
 };
@@ -637,6 +639,8 @@ &pcie1 {
 &pcie1_phy {
 	vdda-phy-supply = <&vreg_l6a>;
 	vdda-pll-supply = <&vreg_l5a>;
+	vdda-qref-supply = <&vreg_l4a>;
+	vdda-refgen-supply = <&vreg_l7a>;
 
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/qcom/monaco-monza-som.dtsi b/arch/arm64/boot/dts/qcom/monaco-monza-som.dtsi
index 36af1ad2105d..b1b3a7773bbe 100644
--- a/arch/arm64/boot/dts/qcom/monaco-monza-som.dtsi
+++ b/arch/arm64/boot/dts/qcom/monaco-monza-som.dtsi
@@ -211,6 +211,8 @@ &pcie0 {
 &pcie0_phy {
 	vdda-phy-supply = <&vreg_l6a>;
 	vdda-pll-supply = <&vreg_l5a>;
+	vdda-qref-supply = <&vreg_l4a>;
+	vdda-refgen-supply = <&vreg_l7a>;
 
 	status = "okay";
 };
@@ -223,6 +225,8 @@ &pcie1 {
 &pcie1_phy {
 	vdda-phy-supply = <&vreg_l6a>;
 	vdda-pll-supply = <&vreg_l5a>;
+	vdda-qref-supply = <&vreg_l4a>;
+	vdda-refgen-supply = <&vreg_l7a>;
 
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/qcom/monaco.dtsi b/arch/arm64/boot/dts/qcom/monaco.dtsi
index cfe39f923224..a8e5f7abf686 100644
--- a/arch/arm64/boot/dts/qcom/monaco.dtsi
+++ b/arch/arm64/boot/dts/qcom/monaco.dtsi
@@ -2433,6 +2433,8 @@ pcie0_phy: phy@1c04000 {
 
 			#phy-cells = <0>;
 
+			refgen-supply = <&refgen>;
+
 			status = "disabled";
 		};
 
@@ -2624,6 +2626,8 @@ pcie1_phy: phy@1c14000 {
 
 			#phy-cells = <0>;
 
+			refgen-supply = <&refgen>;
+
 			status = "disabled";
 		};
 
diff --git a/arch/arm64/boot/dts/qcom/qcs8300-ride.dts b/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
index 1ff39530ea3d..c7b36feca4ac 100644
--- a/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
+++ b/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
@@ -638,6 +638,8 @@ wifi@0 {
 &pcie0_phy {
 	vdda-phy-supply = <&vreg_l6a>;
 	vdda-pll-supply = <&vreg_l5a>;
+	vdda-qref-supply = <&vreg_l4a>;
+	vdda-refgen-supply = <&vreg_l7a>;
 
 	status = "okay";
 };
@@ -657,6 +659,8 @@ &pcieport1 {
 &pcie1_phy {
 	vdda-phy-supply = <&vreg_l6a>;
 	vdda-pll-supply = <&vreg_l5a>;
+	vdda-qref-supply = <&vreg_l4a>;
+	vdda-refgen-supply = <&vreg_l7a>;
 
 	status = "okay";
 };
-- 
2.43.0


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