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    SubjectRe: [PATCH 03/17] ARM: dts: r8a7742: Add I2C and IIC support

    > > According to the Hardware User's Manual Rev. 1.00, the registers do exist
    > > on all RZ/G1, except for RZ/G1E (see below).
    > >
    > > "(automatic transmission can be used as a hardware function, but this is
    > > not meaningful for actual use cases)."
    > >
    > > (whatever that comment may mean?)

    Strange comment, in deed. Given the paragraph before, I would guess Gen1
    maybe had a "fitting" PMIC where SoC/PMIC handled DVFS kind of magically
    with this automatic transfer feature? And Gen2 has not.

    > > On R-Car E3 and RZ/G2E, which have a single IIC instance, we
    > > handled that by:
    > >
    > > The r8a77990 (R-Car E3) and r8a774c0 (RZ/G2E)
    > > controllers are not considered compatible with
    > > "renesas,rcar-gen3-iic" or "renesas,rmobile-iic"
    > > due to the absence of automatic transmission registers.

    From a "describe the HW" point of view, this still makes sense to me.
    Although, it is unlikely we will add support for the automatic
    transmission feature (maybe famous last words).

    > > On R-Car E2 and RZ/G1E, we forgot, and used both SoC-specific and
    > > family-specific compatible values.

    Okay, but we can fix DTs when they have bugs, or?

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