Hi Wolfram, On Mon, May 18, 2020 at 10:26 AM Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx> wrote: > > > > > 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? > Sounds okay to me, how about "renesas,iic-no-dvfs" ? So that this could be used on all the SoC's which don't support DVFS. Cheers, --Prabhakar
