linux-kernel - [PATCH] PCI: qcom: Fix the fixup of PCI_VENDOR_ID

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Message-Id: <20191102002420.4091061-1-bjorn.andersson@linaro.org>
Date:   Fri,  1 Nov 2019 17:24:20 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Stanimir Varbanov <svarbanov@...sol.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Andrew Murray <andrew.murray@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>
Cc:     linux-arm-msm@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: [PATCH] PCI: qcom: Fix the fixup of PCI_VENDOR_ID_QCOM

There exists non-bridge PCIe devices with PCI_VENDOR_ID_QCOM, so limit
the fixup to only affect the PCIe 2.0 (0x106) and PCIe 3.0 (0x107)
bridges.

Cc: stable@...r.kernel.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---
 drivers/pci/controller/dwc/pcie-qcom.c | 3 ++-
 include/linux/pci_ids.h                | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
index 35f4980480bb..b91abf4d4905 100644
--- a/drivers/pci/controller/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
@@ -1441,7 +1441,8 @@ static void qcom_fixup_class(struct pci_dev *dev)
 {
 	dev->class = PCI_CLASS_BRIDGE_PCI << 8;
 }
-DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_QCOM, PCI_ANY_ID, qcom_fixup_class);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_QCOM, PCIE_DEVICE_ID_QCOM_PCIE20, qcom_fixup_class);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_QCOM, PCIE_DEVICE_ID_QCOM_PCIE30, qcom_fixup_class);
 
 static struct platform_driver qcom_pcie_driver = {
 	.probe = qcom_pcie_probe,
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 21a572469a4e..3d0724ee4d2f 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2413,6 +2413,8 @@
 #define PCI_VENDOR_ID_LENOVO		0x17aa
 
 #define PCI_VENDOR_ID_QCOM		0x17cb
+#define PCIE_DEVICE_ID_QCOM_PCIE20	0x0106
+#define PCIE_DEVICE_ID_QCOM_PCIE30	0x0107
 
 #define PCI_VENDOR_ID_CDNS		0x17cd
 
-- 
2.23.0