Re: [PATCH 2/2] i2c: rcar: Add R-Car Gen4 support

[Geert Uytterhoeven <geert@linux-m68k.org>]

Hi Wolfram,

On Tue, Feb 8, 2022 at 1:35 PM Wolfram Sang
<wsa+renesas@sang-engineering.com> wrote:
> > > While I2C on R-Car Gen4 does support some extra features (Slave Clock
> > > Stretch Select, Fast-mode Plus), for now it is treated the same as I2C
> >
> > Correction: R-Car S4 does not support Fast-mode Plus, so there will be
> > a v2 of this patch, eventually.
>
> But why? Unless we implement slave clock stretching, we can still keep
> it at Gen3 level. Which does also not have FM+.

Don't we want to introduce a family-specific compatible value for
R-Car Gen4? At least the SCSS seems to be a new R-Car Gen4 feature
common to R-Car S4 and R-Car V3U (yes, the latter is advertised as
the first member of the R-Car Gen4 family, so I intend to move it
over to renesas,rcar-gen4-* where it makes sense).

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds