From: Hemant Pedanekar Date: Tue, 5 Apr 2011 07:02:50 +0000 (+0530) Subject: PCI: Add quirk for setting valid class for TI816X Endpoint X-Git-Tag: v2.6.32.42~45 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=41524e92bac8e892697eb595efe991d232bf2a5b;p=karo-tx-linux.git PCI: Add quirk for setting valid class for TI816X Endpoint commit 63c4408074cbcc070ac17fc10e524800eb9bd0b0 upstream. 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 Signed-off-by: Jesse Barnes Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index c8ece441e390..1e42381787b0 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -2540,6 +2540,16 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375, #endif /* CONFIG_PCI_MSI */ +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) {