Re: [PATCH v2 02/30] pinctrl: mediatek: reuse pinctrl driver for mt7623

From: Sean Wang
Date: Mon May 01 2017 - 02:45:21 EST


On Fri, 2017-04-28 at 10:01 +0200, Linus Walleij wrote:
> On Wed, Apr 26, 2017 at 11:25 AM, <sean.wang@xxxxxxxxxxxx> wrote:
>
> > From: Sean Wang <sean.wang@xxxxxxxxxxxx>
> >
> > mt7623 pinctrl driver can be compatible with mt2701 one,
> > so the patch reuses the driver and deletes those redundant
> > ones.
> >
> > Cc: John Crispin <john@xxxxxxxxxxx>
> > Signed-off-by: Sean Wang <sean.wang@xxxxxxxxxxxx>
>
> Partly correct.
>
> > "mediatek,mt6397-pinctrl", compatible with mt6397 pinctrl.
> > - "mediatek,mt7623-pinctrl", compatible with mt7623 pinctrl.
>
> NO don't do this.
>
> "compatible" means exactly this: this hardware is compatible with
> this driver. That is why we have it!
>
> So instead of mt7623 pretending to be mt2701, let the mt2701 driver
> list that it is compatible with mt7623, simple.
>
> So patch pinctrl-mt2701.c mt2701_pctrl_match[] instead.
>

Hi Linus,

really appreciate your clear guidance and reviewing on this

I will fix it up in the next version

Sean

> Yours,
> Linus Walleij