On Wed, Apr 14, 2021 at 12:09:50PM -0700, matthew.gerlach@linux.intel.com wrote:
> On Wed, 14 Apr 2021, Mark Brown wrote:

> > Don't create a platform device here, extend the spi-altera driver to
> > register with both DFL and platform buses.

> Are you suggesting something like the SPI driver for the Designware
> controller where there is spi-dw-core.c and bus specific code like
> spi-dw-pci.c and spi-dw-mmioc.c?

Yes, exactly.