diff options
| author | Krzysztof =?utf-8?Q?Ha=C5=82asa?= <khalasa@piap.pl> | 2015-06-19 08:00:15 (GMT) |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2015-07-14 18:38:19 (GMT) |
| commit | 3657cebda5eb9dc1c4c6a0ea5b38bfef70aea50a (patch) | |
| tree | 14bf6c7dec07265ecc8ee2b5a5fe19c41e217ced /drivers/pci/quirks.c | |
| parent | 4a118753d411d3e22a463361bb867c51d63ebe14 (diff) | |
| download | linux-3657cebda5eb9dc1c4c6a0ea5b38bfef70aea50a.tar.xz | |
PCI: Add quirk for Intersil/Techwell TW686[4589] AV capture cards
Intersil/Techwell TW686[4589]-based video capture cards have an empty
(zero) class code. Fix it.
Signed-off-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/quirks.c')
| -rw-r--r-- | drivers/pci/quirks.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 1fd0ce8..1b9fc4e 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -3664,6 +3664,28 @@ DECLARE_PCI_FIXUP_HEADER(0x1283, 0x8892, quirk_use_pcie_bridge_dma_alias); DECLARE_PCI_FIXUP_HEADER(0x8086, 0x244e, quirk_use_pcie_bridge_dma_alias); /* + * Intersil/Techwell TW686[4589]-based video capture cards have an empty (zero) + * class code. Fix it. + */ +static void quirk_tw686x_class(struct pci_dev *pdev) +{ + u32 class = pdev->class; + + /* Use "Multimedia controller" class */ + pdev->class = (PCI_CLASS_MULTIMEDIA_OTHER << 8) | 0x01; + dev_info(&pdev->dev, "TW686x PCI class overridden (%#08x -> %#08x)\n", + class, pdev->class); +} +DECLARE_PCI_FIXUP_CLASS_EARLY(0x1797, 0x6864, PCI_CLASS_NOT_DEFINED, 0, + quirk_tw686x_class); +DECLARE_PCI_FIXUP_CLASS_EARLY(0x1797, 0x6865, PCI_CLASS_NOT_DEFINED, 0, + quirk_tw686x_class); +DECLARE_PCI_FIXUP_CLASS_EARLY(0x1797, 0x6868, PCI_CLASS_NOT_DEFINED, 0, + quirk_tw686x_class); +DECLARE_PCI_FIXUP_CLASS_EARLY(0x1797, 0x6869, PCI_CLASS_NOT_DEFINED, 0, + quirk_tw686x_class); + +/* * AMD has indicated that the devices below do not support peer-to-peer * in any system where they are found in the southbridge with an AMD * IOMMU in the system. Multifunction devices that do not support |