Re: [PATCH v15 3/8] mfd: simple-mfd-i2c: Enable support for the silergy,sy7636a

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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




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