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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>
This commit is contained in:
Krzysztof =?utf-8?Q?Ha=C5=82asa?= 2015-06-19 10:00:15 +02:00 committed by Bjorn Helgaas
parent 4a118753d4
commit 3657cebda5
1 changed files with 22 additions and 0 deletions
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22
drivers/pci/quirks.c
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@ -3663,6 +3663,28 @@ DECLARE_PCI_FIXUP_HEADER(0x1283, 0x8892, quirk_use_pcie_bridge_dma_alias);
/* Intel 82801, https://bugzilla.kernel.org/show_bug.cgi?id=44881#c49 */
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