On Tue, Dec 03, 2019 at 04:51:54PM +0000, Jonathan Cameron wrote:

> If the driver picks a mode because that's what it says on the datasheet
> it prevents odd board configurations from working.  The question
> becomes whether it makes sense in general to assume those odd board
> conditions don't exist until we actually have one, or to assume that
> they might and push the burden on to all DT files.

The cost should be for the weird boards, not everything.  If you
just wire up a device with a normally connected SPI bus without
throwing random inverters or whatever into the system then you
shouldn't need to do anything special.