[PATCH] PCI: add MSI INTX_DISABLE quirks for AR8161/AR8162/AR8171/AR8172/E210X

[xiong]

From: "Huang,Xiong" <xiong at qca.qualcomm.com>

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

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

Signed-off-by: Huang,Xiong <xiong at qca.qualcomm.com>
---
 drivers/pci/quirks.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 0369fb6..4273a2d 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -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
-- 
1.7.11.7