On Fri, Feb 28, 2014 at 04:53:33PM -0800, Tim Harvey wrote: > In testing this on IMX6 I'm finding that 'of_irq_parse_and_map_pci()' > always returns -EINVAL because it can't find a dt node for the host > bridge: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/of/of_pci_irq.c#n60. There may be some kind of issue in the pcie-designware.c: static struct pci_bus *dw_pcie_scan_bus(int nr, struct pci_sys_data *sys) { struct pci_bus *bus; struct pcie_port *pp = sys_to_pcie(sys); if (pp) { pp->root_bus_nr = sys->busnr; bus = pci_scan_root_bus(NULL, sys->busnr, &dw_pcie_ops, ^^^^^^^^^^^ Shouldn't be null for DT cases. Perhaps since the driver doesn't pass in a parent pointer, no parent device is associated with the struct pci_bus that gets created, so pci_bus_to_OF_node will always fail and the DT PCI mechanisms become broken. Jason -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
