Re: [PATCH v6 5/5] mfd: max77541: Add ADI MAX77541/MAX77540 PMIC Support

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On Wed, 05 Apr 2023, Andy Shevchenko wrote:

> On Mon, Apr 03, 2023 at 03:09:50PM +0100, Lee Jones wrote:
> > On Mon, 03 Apr 2023, Sahin, Okan wrote:
>
> ...
>
>
> > > In fact, one of the maintainers suggested assigning chip_info to data
> > > instead of enumeration. Then I added chip_info and put devices into
> > > sub-structure above. I will replace chip_info with id structure in max77541
> > > device structure, right? I will use enumeration for data as I will assign
> > > it to id, and distinguish different devices.
> >
> > Yes, that's correct.  Please remove chip_info altogether.
>
> Then it will provoke casting in the OF ID table which I believe is not what
> we want. I would agree on your first suggestion to have a plain number in I²C
> ID table, but I'm against it in OF and/or ACPI ID table.

And I'm against passing MFD information through the OF/ACPI APIs.

You can put through raw platform data or a device descriptor.

Ref: git grep -A5 "struct of_device_id.*{" -- drivers/mfd

--
Lee Jones [李琼斯]



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