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Commit 70588818 authored by Xiong Huang's avatar Xiong Huang Committed by Bjorn Helgaas
Browse files

PCI: Add MSI INTX_DISABLE quirks for AR8161/AR8162/AR8171/AR8172/E210X 



The following PCIe devices with revision lower than 0x18 have this bug:

 AR8161(1091)/AR8162(1090)/AR8171(10A1)/AR8172(10A0)/E210X(E091).

Signed-off-by: default avatarHuang,Xiong <xiong@qca.qualcomm.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: default avatarWei Yang <weiyang@linux.vnet.ibm.com>
parent e82b14bd

drivers/pci/quirks.c

+18 −0
Original line number Diff line number Diff line
@@ -2594,6 +2594,14 @@ static void quirk_msi_intx_disable_ati_bug(struct pci_dev *dev) 
		dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;

	pci_dev_put(p);

}

static void quirk_msi_intx_disable_qca_bug(struct pci_dev *dev)

{

	/* AR816X/AR817X/E210X MSI is fixed at HW level from revision 0x18 */

	if (dev->revision < 0x18) {

		dev_info(&dev->dev, "set MSI_INTX_DISABLE_BUG flag\n");

		dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;

	}

}

DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,

			PCI_DEVICE_ID_TIGON3_5780,

			quirk_msi_intx_disable_bug);
@@ -2643,6 +2651,16 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1073, 
			quirk_msi_intx_disable_bug);

DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1083,

			quirk_msi_intx_disable_bug);

DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1090,

			quirk_msi_intx_disable_qca_bug);

DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1091,

			quirk_msi_intx_disable_qca_bug);

DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x10a0,

			quirk_msi_intx_disable_qca_bug);

DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x10a1,

			quirk_msi_intx_disable_qca_bug);

DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0xe091,

			quirk_msi_intx_disable_qca_bug);

#endif /* CONFIG_PCI_MSI */



/* Allow manual resource allocation for PCI hotplug bridges