Re: [RFC PATCH 2/5] mfd: add 88pm88x driver

From: Lee Jones
Date: Fri Feb 02 2024 - 07:46:06 EST


On Thu, 01 Feb 2024, Karel Balej wrote:

> Lee Jones, 2024-01-31T11:03:11+00:00:
> > On Sun, 28 Jan 2024, Karel Balej wrote:
> > > > > + /* GPIO1: DVC, GPIO0: input */
> > > > > + REG_SEQ0(PM88X_REG_GPIO_CTRL1, 0x40),
> > > >
> > > > Shouldn't you set these up using Pintrl?
> > >
> > > You mean to add a new MFD cell for the pins and write the respective
> > > driver? The downstream implementation has no such thing so I'm not sure
> > > if I would be able to do that from scratch.
> >
> > This is not a Pinctrl driver.
> >
> > Isn't there a generic API you can use?
>
> I'm sorry, I don't think I understand what you mean.

Perhaps I misunderstand the code. It looks like this regmap patch hack
is configuring pins and a bunch of other things. Would that be a
correct assessment?

If so, where do we draw the line here? Do we accept a 1000 line driver
which configures a large SoC with a bunch of bespoke register writes?

--
Lee Jones [李琼斯]