Messages in this thread | | | From | "Lad, Prabhakar" <> | Date | Mon, 18 May 2020 10:43:26 +0100 | Subject | Re: [PATCH 03/17] ARM: dts: r8a7742: Add I2C and IIC support |
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Hi Wolfram,
On Mon, May 18, 2020 at 10:26 AM Wolfram Sang <wsa+renesas@sang-engineering.com> 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
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