diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2015-06-19 15:58:24 -0500 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2015-10-27 22:14:39 -0400 |
| commit | d01fa89cf3615509269c17cade109c4e6fb93446 (patch) | |
| tree | 7c887e7dc6e0a5d3bdf2355f925d3facb870dfb6 /drivers | |
| parent | 8437a1598f929204f5bd683431f5f8fa4481cbe9 (diff) | |
PCI: Fix TI816X class code quirk
[ Upstream commit d1541dc977d376406f4584d8eb055488655c98ec ]
In fixup_ti816x_class(), we assigned "class = PCI_CLASS_MULTIMEDIA_VIDEO".
But PCI_CLASS_MULTIMEDIA_VIDEO is only the two-byte base class/sub-class
and needs to be shifted to make space for the low-order interface byte.
Shift PCI_CLASS_MULTIMEDIA_VIDEO to set the correct class code.
Fixes: 63c4408074cb ("PCI: Add quirk for setting valid class for TI816X Endpoint")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Hemant Pedanekar <hemantp@ti.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/quirks.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 04ea682ab2aa..00b1cd32a4b1 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -2818,12 +2818,15 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x3c28, vtd_mask_spec_errors); static void fixup_ti816x_class(struct pci_dev *dev) { + u32 class = dev->class; + /* TI 816x devices do not have class code set when in PCIe boot mode */ - dev_info(&dev->dev, "Setting PCI class for 816x PCIe device\n"); - dev->class = PCI_CLASS_MULTIMEDIA_VIDEO; + dev->class = PCI_CLASS_MULTIMEDIA_VIDEO << 8; + dev_info(&dev->dev, "PCI class overridden (%#08x -> %#08x)\n", + class, dev->class); } DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_TI, 0xb800, - PCI_CLASS_NOT_DEFINED, 0, fixup_ti816x_class); + PCI_CLASS_NOT_DEFINED, 0, fixup_ti816x_class); /* Some PCIe devices do not work reliably with the claimed maximum * payload size supported. |