linux-kernel - [PATCH v2 2/2] PCI: qcom: Treat PHY as optional for the new binding

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Message-Id: <20251106-pci-binding-v2-2-bebe9345fc4b@oss.qualcomm.com>
Date: Thu, 06 Nov 2025 16:57:17 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
To: Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Krzysztof Wilczyński <kwilczynski@...nel.org>,
        Manivannan Sadhasivam <mani@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, Abraham I <kishon@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>
Cc: linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
Subject: [PATCH v2 2/2] PCI: qcom: Treat PHY as optional for the new
 binding

Some platforms like the old ARM32 IPQ/APQ platforms do not supply the
'phys' property in devicetree. Hence, treat the PHY as optional in
qcom_pcie_parse_port(), so that they can work with the new binding model
of specifying PERST# in Root Port node.

Fixes: a2fbecdbbb9d ("PCI: qcom: Add support for parsing the new Root Port binding")
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
---
 drivers/pci/controller/dwc/pcie-qcom.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
index 805edbbfe7eba496bc99ca82051dee43d240f359..53b41dc98f11ab953f7f4f31da642abf8b6faf83 100644
--- a/drivers/pci/controller/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
@@ -1723,7 +1723,7 @@ static int qcom_pcie_parse_port(struct qcom_pcie *pcie, struct device_node *node
 	if (IS_ERR(reset))
 		return PTR_ERR(reset);
 
-	phy = devm_of_phy_get(dev, node, NULL);
+	phy = devm_of_phy_optional_get(dev, node, NULL);
 	if (IS_ERR(phy))
 		return PTR_ERR(phy);
 

-- 
2.48.1