2 - general code review and cleanup
3 - can this be converted to not require PCI_DRIVERS_LEGACY ??
4 The irq returned by pcibios_map_irq is a "hwirq" (hardware irq number)
5 and pci_assign_irq() assigns this directly to dev->irq, which
6 expects a "virq" (virtual irq number). These numbers are different
7 on MIPS. There is a gross hack to make it work on one
8 specific platform, so it can be tested.
9 - Should this be merged with arch/mips/pci/pci-mt7620.c ??
10 - ensure device-tree requirements are documented
12 Cc: NeilBrown <neil@brown.name>