PCI_BRIDGE_IO_WINDOW
r = &dev->resource[PCI_BRIDGE_IO_WINDOW];
res = &bridge->resource[PCI_BRIDGE_IO_WINDOW];
res_name = pci_resource_name(bridge, PCI_BRIDGE_IO_WINDOW);
case PCI_BRIDGE_IO_WINDOW:
b_res = &bridge->resource[PCI_BRIDGE_IO_WINDOW];