[PATCH v3 6/7] mfd: Add support for LAN966x PCI device

[Arnd Bergmann]

On Mon, Jul 15, 2024, at 14:12, Herve Codina wrote:
> Hi Arnd,
>
> On Fri, 12 Jul 2024 16:14:31 +0200
> "Arnd Bergmann" <arnd at arndb.de> wrote:
>
>> On Fri, Jul 12, 2024, at 15:11, Herve Codina wrote:
>> > On Thu, 11 Jul 2024 14:33:26 -0600 Rob Herring <robh at kernel.org> wrote:  
>> >> On Thu, Jul 11, 2024 at 1:08 PM Greg Kroah-Hartman <gregkh at linuxfoundation.org> wrote:  
>> 
>> >> > >
>> >> > > This PCI driver purpose is to instanciate many other drivers using a DT
>> >> > > overlay. I think MFD is the right subsystem.    
>> >> 
>> >> It is a Multi-function Device, but it doesn't appear to use any of the
>> >> MFD subsystem. So maybe drivers/soc/? Another dumping ground, but it
>> >> is a driver for an SoC exposed as a PCI device.
>> >>   
>> >
>> > In drivers/soc, drivers/soc/microchip/ could be the right place.
>> >
>> > Conor, are you open to have the PCI LAN966x device driver in
>> > drivers/soc/microchip/ ?  
>> 
>> That sounds like a much worse fit than drivers/mfd: the code
>> here does not actually run on the lan966x soc, it instead runs
>> on whatever other machine you happen to plug it into as a
>> PCI device.
>
> Maybe drivers/misc ?

That's probably a little better, and there is already
drivers/misc/mchp_pci1xxxx in there, which also has some
aux devices.

Maybe we need a new place and then move both of these
and some of the similar devices from drivers/mfd to that, but
we don't really have to pick one now.

   Arnd