> > However, both versions (with and without automatic transmission) are
> > described with the same "renesas,iic-r8a7742" compatible. Is it possible
> > to detect the reduced variant at runtime somehow?
> >
> I couldn't find anything the manual that would be useful to detect at runtime.
> 
> > My concern is that the peculiarity of this SoC might be forgotten if we
> > describe it like this and ever add "automatic transmissions" somewhen.
> >
> Agreed.

Well, I guess reading from a register which is supposed to not be there
on the modified IP core is too hackish.

Leaves us with a seperate compatible entry for it?