On Tue, Jul 03, 2018 at 06:40:41PM +0200, Andreas Färber wrote:

> Do you have an alternative solution for abstraction? A regmap would seem
> to require putting everything into a monolithic SX1301 driver despite
> those connected chipsets actually being regular, external SPI chips that
> could also be attached to non-SX1301 SPI masters.

I'm suggesting a regmap for those external SPI chips.  It doesn't matter
what the host uses.