Hi, On Wed, 24 Nov 2021 14:56:46 -0800 Guenter Roeck <linux@xxxxxxxxxxxx> wrote: [...] > >>>> Ordering Information > >>>> SY7636 □(□□)□ > >>>> | Temperature Code (C) > >>>> | Package Code (RM) > >>>> | Optional Spec Code (A) > >>>> > >>>> The datasheet otherwise refers to the chip as SY7636A. > >>>> > >>> so there is no indication of something like this where the A really > >>> makes a difference: > >>> > >> > >> I may be missing it, but I see nothing in the datasheet that would indicate > >> that or if the "A" has any relevance other than "Optional Spec Code", > >> and I do not see an explanation for that term either. > > > > well things seems to match with things I got from analysing the kobo > > sources. So at least the thing in the Kobo Libra H2O seems to be that > > one described in the datasheet, so we can have one sy7636a driver for > > it. > > > > BTW: If I search for a sy7636 on aliexpress I get some SO-8 lithium > > charger ICs. > > > > The datasheet says "PMIC for Electronic Paper Display". > Correct. And we have the silergy vendor prefix in the dt compatible, so if some other company decides to call its chip sy7636, we can distinguish. Regards, Andreas
