> > 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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