Re: [PATCH] pinctrl: single: check if #pinctrl-cells exceeds 3

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On Wed, Sep 30, 2020 at 08:16:59AM +0300, Tony Lindgren wrote:
> * Linus Walleij <linus.walleij@xxxxxxxxxx> [200929 12:51]:
> > On Sun, Sep 13, 2020 at 11:17 PM Drew Fustini <drew@xxxxxxxxxxxxxxx> wrote:
> > 
> > > The property #pinctrl-cells can either be 2 or 3.  There is currently
> > > only a check to make sure that #pinctrl-cells is 2 or greater.  This
> > > patch adds a check to make sure it is not greater than 3.
> > >
> > > Fixes: a13395418888 ("pinctrl: single: parse #pinctrl-cells = 2")
> > > Reported-by: Trent Piepho <tpiepho@xxxxxxxxx>
> > > Link: https://lore.kernel.org/linux-omap/3139716.CMS8C0sQ7x@zen.local/
> > > Signed-off-by: Drew Fustini <drew@xxxxxxxxxxxxxxx>
> > 
> > Tony, does this and the other patch look good to you?
> 
> Hmm well the description looks a bit confusing, #pinctrl-cells can
> also be 1 that's the default. Might be worth clarifying that part.
> 
> Regards,
> 
> Tony

Yes, that was my fault for confusing #pinctrl-cells with
pinctrl_spec.args_count.

- if #pinctrl-cells = <1>, then pinctrl_spec.args_count = 2
- if #pinctrl-cells = <2>, then pinctrl_spec.args_count = 3
- all other values are not valid

I will post a v2.

Thanks,
Drew



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