Re: [PATCH v4 02/11] mfd: Add support for Kontron sl28cpld management controller

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On Fri, Jun 05, 2020 at 07:57:09AM +0100, Lee Jones wrote:
> On Thu, 04 Jun 2020, Michael Walle wrote:

> > +	sl28cpld->regmap = devm_regmap_init_i2c(i2c, &sl28cpld_regmap_config);
> > +	if (IS_ERR(sl28cpld->regmap))
> > +		return PTR_ERR(sl28cpld->regmap);

> This is now a shared memory allocator and not an MFD at all.

> I'm clamping down on these type of drivers!

> Please find a better way to accomplish this.

What is the concern with this?  Looking at the patch I'm guessing the
concern would be that the driver isn't instantiating any MFD children
and instead requiring them to be put in the DT?

> Potentially using "simple-mfd" and "simple-regmap".

> The former already exists and does what you want.  The latter doesn't
> yet exist, but could solve your and lots of other contributor's
> issues.

I have no idea what you are thinking of when you say "simple-regmap" so
it is difficult to comment.

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