Re: [PATCH 1/4] dt-bindings: pinctrl: Combine MediaTek MT67xx pinctrl binding docs

[AngeloGioacchino Del Regno]

Il 21/09/22 11:30, yassine.oudjana@xxxxxxxxx ha scritto:
> On Wed, Sep 21 2022 at 09:11:12 AM +0200, Krzysztof Kozlowski 
> <krzysztof.kozlowski@xxxxxxxxxx> wrote:
> > On 20/09/2022 10:06, AngeloGioacchino Del Regno wrote:
> > >  Il 19/09/22 19:01, Yassine Oudjana ha scritto:
> > > >  From: Yassine Oudjana <y.oudjana@xxxxxxxxxxxxxx>
> > > >
> > > >  Documents for MT6779, MT6795 and MT6797 that currently exist share
> > > >  most properties, and each one has slightly differently worded
> > > >  descriptions for those properties. Combine all three documents into
> > > >  one common document for all MT67xx SoC pin controllers, picking a few
> > > >  parts from each and accounting for differences such as items in reg
> > > >  and reg-names properties. Also document the MT6765 pin controller
> > > >  which currently has a driver but no DT binding documentation. It should
> > > >  be possible to also include bindings for MT8183 and MT8188, but these
> > > >  have some additional properties that might complicate things a bit,
> > > >  so they are left alone for now.
> > > >
> > > >  Signed-off-by: Yassine Oudjana <y.oudjana@xxxxxxxxxxxxxx>
> > > >  ---
> > > >    .../pinctrl/mediatek,mt6779-pinctrl.yaml      | 207 ------------------
> > > >    .../pinctrl/mediatek,mt6797-pinctrl.yaml      | 176 ---------------
> > > >    ...6795.yaml => mediatek,mt67xx-pinctrl.yaml} | 181 +++++++++++----
> > >
> > >  Hello Yassine,
> > >  nice cleanup over here!
> > >
> > >  There's a catch though: as far as I know, wildcards are not permitted... so you
> > >  should, at this point, merge all of these in mediatek,mt6779-pinctrl.yaml instead.
> > >
> > >  Before jumping to that, though... Krzysztof, can you please confirm (or deny)?
> >
> > Wildcards are not allowed in compatibles. In filename wildcards or
> > family name could work if they are really going to match the devices. I
> > have doubts here. 67xx is quite a lot of different devices, so I am not
> > sure this will cover them all.
> >
> > I would prefer one name (oldest SoC or lowest number).
>
> Lowest number (and probably oldest too but not sure since mediatek naming 
> conventions are a bit weird) currently documented is mt6779, but mt6765 gets 
> documented in this patch and mt6735 (this one I know for sure is older than the 
> rest) in a following patch, so do I just stick with mt6779 or do I change it in the 
> following patches documenting mt6765 and mt6735?

I see the sequence as:

1. You merge mediatek,mt6797-pinctrl.yaml into mediatek,mt6779-pinctrl.yaml; then
2. Adding MT6765 documentation to mediatek,mt6779-pinctrl.yaml; then
3. Adding support for MT6735, documentation goes again to 6779-pinctrl.

This means that you're working with mediatek,mt6779-pinctrl.yaml :-)

P.S.: That was also a suggestion about how to split things per-commit!

Cheers,
Angelo

> Thanks,
> Yassine
>
> > Best regards,
> > Krzysztof