[PATCH v2 1/2] PCI: generic: remove dependency on hw_pci

[arnd@arndb.de (Arnd Bergmann)]

On Tuesday 26 May 2015 10:59:24 Will Deacon wrote:
> > > Secondly, the hack to put pci_sys_data as the first member of gen_pci is ugly
> > > at best
> > 
> > On balance, it removes the problem of using hw_pci interface which has its own
> > ugliness (Arnd's mail on this http://www.spinics.net/lists/linux-pci/msg40703.html)
> 
> To me, that sounds like we should be disposing of the hw_pci interface
> altogether and moving arch/arm/ over to the new architecture-independent
> interface.

I'd like to do that for all drivers in drivers/pci/host, but leave the
ones for the legacy platforms in arch/arm alone, in particular the ones
that use nr_controllers != 1.

We should be able to remove pci_common_init_dev() and directly probe
all devices that are using that, while we keep pci_common_init()
around for the legacy case that also does not have a parent device.

	Arnd