[PATCH v2 2/2] PCI: mediatek: Fixup class type for MT7622

[<honghui.zhang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>]

From: Honghui Zhang <honghui.zhang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>

The host bridge of MT7622 has hardware code the class code to an
arbitrary, meaningless value, fix that.

Signed-off-by: Honghui Zhang <honghui.zhang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
---
 drivers/pci/host/pcie-mediatek.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/pci/host/pcie-mediatek.c b/drivers/pci/host/pcie-mediatek.c
index 3248771..ae8d367 100644
--- a/drivers/pci/host/pcie-mediatek.c
+++ b/drivers/pci/host/pcie-mediatek.c
@@ -1174,3 +1174,15 @@ static struct platform_driver mtk_pcie_driver = {
 	},
 };
 builtin_platform_driver(mtk_pcie_driver);
+
+/* The host bridge of MT7622 advertises the wrong device class. */
+static void mtk_fixup_class(struct pci_dev *dev)
+{
+	dev->class = PCI_CLASS_BRIDGE_PCI << 8;
+}
+
+/*
+ * The HW default value of vendor id and device id for mt7622 are 0x0e8d,
+ * 0x3258, which are arbitrary, meaningless values.
+ */
+DECLARE_PCI_FIXUP_EARLY(0x0e8d, 0x3258, mtk_fixup_class);
-- 
2.6.4