linux-kernel - [PATCH v3 08/13] ARM: dts: qcom: sdx65: Add 'linux,pci-domain' to PCIe EP controller node

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Message-Id: <20240731-pci-qcom-hotplug-v3-8-a1426afdee3b@linaro.org>
Date: Wed, 31 Jul 2024 16:20:11 +0530
From: Manivannan Sadhasivam via B4 Relay <devnull+manivannan.sadhasivam.linaro.org@...nel.org>
To: Lorenzo Pieralisi <lpieralisi@...nel.org>, 
 Krzysztof Wilczyński <kw@...ux.com>, 
 Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Kishon Vijay Abraham I <kishon@...nel.org>, 
 Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-pci@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
 linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, 
 Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>, 
 Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH v3 08/13] ARM: dts: qcom: sdx65: Add 'linux,pci-domain' to
 PCIe EP controller node

From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>

'linux,pci-domain' property provides the PCI domain number for the PCI
endpoint controllers in a SoC. If this property is not present, then an
unstable (across boots) unique number will be assigned.

Use this property to specify the domain number based on the actual hardware
instance of the PCI endpoint controllers in SDX65 SoC.

Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
---
 arch/arm/boot/dts/qcom/qcom-sdx65.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/qcom/qcom-sdx65.dtsi b/arch/arm/boot/dts/qcom/qcom-sdx65.dtsi
index a949454212e9..fcfec4228670 100644
--- a/arch/arm/boot/dts/qcom/qcom-sdx65.dtsi
+++ b/arch/arm/boot/dts/qcom/qcom-sdx65.dtsi
@@ -345,6 +345,7 @@ pcie_ep: pcie-ep@...0000 {
 
 			max-link-speed = <3>;
 			num-lanes = <2>;
+			linux,pci-domain = <0>;
 
 			status = "disabled";
 		};

-- 
2.25.1