On Thu, Oct 01, 2020 at 04:50:26PM +0000, Ertman, David M wrote:

> > >> are controlled by DT/ACPI. The same argument applies for not using MFD
> > >> in this scenario as it relies on individual function devices being
> > >> physical devices that are DT enumerated.

...

> The MFD bus also uses parts of the platform bus in the background, including
> platform_data and the such.  We submitted a version of the RDMA/LAN solution
> using MFD and it was NACK'd by GregKH.

That does not mean that it's a good idea to write documentation that
says things that are not true.  It would be better to just not say
anything here rather than mislead people.