Re: [PATCH] regulator: max77650: add of_match table

From: Bartosz Golaszewski
Date: Tue Dec 10 2019 - 11:53:25 EST


wt., 10 gru 2019 o 14:21 Mark Brown <broonie@xxxxxxxxxx> napisaÅ(a):
>
> On Tue, Dec 10, 2019 at 02:10:15PM +0100, Bartosz Golaszewski wrote:
> > wt., 10 gru 2019 o 14:02 Mark Brown <broonie@xxxxxxxxxx> napisaÅ(a):
>
> > > This seems to work fine for other drivers and the platform bus has to be
> > > usable on systems that don't use DT so that doesn't sound right. Which
> > > MODULE_ALIAS() are you using exactly?
>
> > MODULE_ALIAS("platform:max77650-regulator");
>
> Huh, that should work... I wonder if adding a compatible to the DT has
> messed it up, does it work without the compatible in the .dts (and with
> the of_compatible removed from the MFD driver I guess)?
>

It does work when removing the compatible strings.

> > > > Besides: the DT bindings define the compatible for sub-nodes already.
> > > > We should probably conform to that.
>
> > > I would say that's a mistake and should be fixed, this particular way of
> > > loading the regulators is a Linux implementation detail.
>
> > Fixed by removing this from the bindings?
>
> Yeah. Though it may be too late, shame I didn't catch this when it was
> merged :(

Yeah, I didn't know any better too.

Rob: the bindings for this were released some time ago and they define
compatible strings for MFD sub-nodes, but using compatible strings for
sub-nodes is apparently incorrect and the drivers don't support it
either. Can we remove them from the bindings?

Best regards,
Bartosz Golaszewski