| Message ID | 1301986970-16482-1-git-send-email-hemantp@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, 5 Apr 2011 12:32:50 +0530 Hemant Pedanekar <hemantp@ti.com> wrote: > TI816X (common name for DM816x/C6A816x/AM389x family) devices configured to boot > as PCIe Endpoint have class code = 0. This makes kernel PCI bus code to skip > allocating BARs to these devices resulting into following type of error when > trying to enable them: > > "Device 0000:01:00.0 not available because of resource collisions" > > The device cannot be operated because of the above issue. > > This patch adds a ID specific (TI VENDOR ID and 816X DEVICE ID based) 'early' > fixup quirk to replace class code with PCI_CLASS_MULTIMEDIA_VIDEO as class. > > Signed-off-by: Hemant Pedanekar <hemantp@ti.com> > --- Applied to my linux-next branch, thanks.
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index bd80f63..a1e4f61 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -2784,6 +2784,16 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x342e, vtd_mask_spec_errors); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x3c28, vtd_mask_spec_errors); #endif +static void __devinit fixup_ti816x_class(struct pci_dev* dev) +{ + /* TI 816x devices do not have class code set when in PCIe boot mode */ + if (dev->class == PCI_CLASS_NOT_DEFINED) { + dev_info(&dev->dev, "Setting PCI class for 816x PCIe device\n"); + dev->class = PCI_CLASS_MULTIMEDIA_VIDEO; + } +} +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_TI, 0xb800, fixup_ti816x_class); + static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_fixup *end) {
TI816X (common name for DM816x/C6A816x/AM389x family) devices configured to boot as PCIe Endpoint have class code = 0. This makes kernel PCI bus code to skip allocating BARs to these devices resulting into following type of error when trying to enable them: "Device 0000:01:00.0 not available because of resource collisions" The device cannot be operated because of the above issue. This patch adds a ID specific (TI VENDOR ID and 816X DEVICE ID based) 'early' fixup quirk to replace class code with PCI_CLASS_MULTIMEDIA_VIDEO as class. Signed-off-by: Hemant Pedanekar <hemantp@ti.com> --- drivers/pci/quirks.c | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-)