linux-kernel - [PATCH v2 4/4] arm64: dts: qcom: x1e80100-qcp: Add qref supply for PCIe PHYs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250425092955.4099677-5-quic_wenbyao@quicinc.com>
Date: Fri, 25 Apr 2025 17:29:55 +0800
From: Wenbin Yao <quic_wenbyao@...cinc.com>
To: catalin.marinas@....com, will@...nel.org,
        linux-arm-kernel@...ts.infradead.org, andersson@...nel.org,
        konradybcio@...nel.org, robh@...nel.org, krzk+dt@...nel.org,
        conor+dt@...nel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: krishna.chundru@....qualcomm.com, quic_vbadigan@...cinc.com,
        quic_mrana@...cinc.com, quic_cang@...cinc.com, quic_qianyu@...cinc.com,
        quic_wenbyao@...cinc.com
Subject: [PATCH v2 4/4] arm64: dts: qcom: x1e80100-qcp: Add qref supply for PCIe PHYs

From: Qiang Yu <quic_qianyu@...cinc.com>

All PCIe PHYs on X1E80100 require vdda-qref power supplies, but this is
missing in the current PHY device tree node. The PCIe port can still
function because the regulator L3J, which vdda-qref consumes, is voted by
other components.

Since the device tree should accurately describe the hardware, add the
vdda-qref power supply explicitly in all PCIe PHY device nodes.

Signed-off-by: Qiang Yu <quic_qianyu@...cinc.com>
Signed-off-by: Wenbin Yao <quic_wenbyao@...cinc.com>
---
 arch/arm64/boot/dts/qcom/x1e80100-qcp.dts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts b/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts
index 88dfd2199..10f2ac70e 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts
+++ b/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts
@@ -994,6 +994,7 @@ &pcie3 {
 &pcie3_phy {
 	vdda-phy-supply = <&vreg_l3c_0p8>;
 	vdda-pll-supply = <&vreg_l3e_1p2>;
+	vdda-qref-supply = <&vreg_l3j_0p8>;
 
 	status = "okay";
 };
@@ -1017,6 +1018,7 @@ &pcie4 {
 &pcie4_phy {
 	vdda-phy-supply = <&vreg_l3i_0p8>;
 	vdda-pll-supply = <&vreg_l3e_1p2>;
+	vdda-qref-supply = <&vreg_l3j_0p8>;
 
 	status = "okay";
 };
@@ -1053,6 +1055,7 @@ &pcie6a {
 &pcie6a_phy {
 	vdda-phy-supply = <&vreg_l1d_0p8>;
 	vdda-pll-supply = <&vreg_l2j_1p2>;
+	vdda-qref-supply = <&vreg_l3j_0p8>;
 
 	status = "okay";
 };
-- 
2.34.1