[PATCH v2 4/4] arm64: dts: qcom: sa8775p: Add qref and refgen supply for PCIe PHYs
From: Ziyue Zhang
Date: Wed Sep 16 2026 - 06:24:43 EST
The QMP PCIe PHYs on SA8775p 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
(Lemans-EVK and Lemans-RIDE).
Fixes: 94d7d37f6ac3 ("arm64: dts: qcom: lemans-evk: Enable PCIe support")
Fixes: 76326da895b8 ("arm64: dts: qcom: lemans: Refactor ride/ride-r3 boards based on daughter cards")
Signed-off-by: Ziyue Zhang <ziyue.zhang@xxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/lemans-evk.dts | 4 ++++
arch/arm64/boot/dts/qcom/lemans-ride-common.dtsi | 4 ++++
2 files changed, 8 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/lemans-evk.dts b/arch/arm64/boot/dts/qcom/lemans-evk.dts
index a45485b54a5b..11fb11b161fc 100644
--- a/arch/arm64/boot/dts/qcom/lemans-evk.dts
+++ b/arch/arm64/boot/dts/qcom/lemans-evk.dts
@@ -851,6 +851,8 @@ &pcie0 {
&pcie0_phy {
vdda-phy-supply = <&vreg_l5a>;
vdda-pll-supply = <&vreg_l1c>;
+ vdda-qref-supply = <&vreg_l4a>;
+ vdda-refgen-supply = <&vreg_l7a>;
status = "okay";
};
@@ -868,6 +870,8 @@ &pcie1 {
&pcie1_phy {
vdda-phy-supply = <&vreg_l5a>;
vdda-pll-supply = <&vreg_l1c>;
+ vdda-qref-supply = <&vreg_l4a>;
+ vdda-refgen-supply = <&vreg_l7a>;
status = "okay";
};
diff --git a/arch/arm64/boot/dts/qcom/lemans-ride-common.dtsi b/arch/arm64/boot/dts/qcom/lemans-ride-common.dtsi
index 144f117ba511..c312fbd6ac48 100644
--- a/arch/arm64/boot/dts/qcom/lemans-ride-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/lemans-ride-common.dtsi
@@ -983,6 +983,8 @@ &pcie1 {
&pcie0_phy {
vdda-phy-supply = <&vreg_l5a>;
vdda-pll-supply = <&vreg_l1c>;
+ vdda-qref-supply = <&vreg_l4a>;
+ vdda-refgen-supply = <&vreg_l7a>;
status = "okay";
};
@@ -990,6 +992,8 @@ &pcie0_phy {
&pcie1_phy {
vdda-phy-supply = <&vreg_l5a>;
vdda-pll-supply = <&vreg_l1c>;
+ vdda-qref-supply = <&vreg_l4a>;
+ vdda-refgen-supply = <&vreg_l7a>;
status = "okay";
};
--
2.43.0