Messages in this thread Patch in this message | | | From | Rostislav Lisovy <> | Subject | [PATCH RESEND] ARM: PCI: Use PCI CLASS * defines for PCI class | Date | Mon, 8 Sep 2014 10:05:32 +0200 |
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Signed-off-by: Rostislav Lisovy <lisovy@gmail.com> Reviewed-by: Yijing Wang <wangyijing@huawei.com> --- The header file include/linux/pci_ids.h defines #define PCI_CLASS_BRIDGE_OTHER 0x0680 #define PCI_CLASS_SYSTEM_DMA 0x0801
((struct pci_dev*)dev)->class corresponds to the 3 bytes Class code in the PCI Configuration space header -- 1B Base class, 1B Sub-class, 1B Reg-level interface.
In that case (PCI_CLASS_BRIDGE_OTHER << 8) is equivalent to 0x68000 (imagine the leading zero) and ((PCI_CLASS_SYSTEM_DMA << 8) | 0x03)) is equivalent to 0x80103.
arch/arm/kernel/bios32.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c index 17a26c1..e511ad1 100644 --- a/arch/arm/kernel/bios32.c +++ b/arch/arm/kernel/bios32.c @@ -255,10 +255,9 @@ static void pci_fixup_it8152(struct pci_dev *dev) { int i; /* fixup for ITE 8152 devices */ - /* FIXME: add defines for class 0x68000 and 0x80103 */ if ((dev->class >> 8) == PCI_CLASS_BRIDGE_HOST || - dev->class == 0x68000 || - dev->class == 0x80103) { + dev->class == (PCI_CLASS_BRIDGE_OTHER << 8) || + dev->class == ((PCI_CLASS_SYSTEM_DMA << 8) | 0x03)) { for (i = 0; i < PCI_NUM_RESOURCES; i++) { dev->resource[i].start = 0; dev->resource[i].end = 0; -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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