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From:   Andy Shevchenko <andy.shevchenko@gmail.com>
Date:   Mon, 5 Sep 2022 13:47:41 +0300
Message-ID: <CAHp75VcFv7ipLqXmOwbXpY-_ccYNA9PgF0h4T8RY1Z-UNNpaTg@mail.gmail.com>
Subject: Re: [PATCH v1 06/11] PCI: aardvark: switch to using devm_gpiod_get_optional()
To:     =?UTF-8?Q?Pali_Roh=C3=A1r?= <pali@kernel.org>
Cc:     Dmitry Torokhov <dmitry.torokhov@gmail.com>,
        Thierry Reding <thierry.reding@gmail.com>,
        Mark Brown <broonie@kernel.org>,
        Matti Vaittinen <mazziesaccount@gmail.com>,
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        Wim Van Sebroeck <wim@linux-watchdog.org>,
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On Mon, Sep 5, 2022 at 10:02 AM Pali Roh=C3=A1r <pali@kernel.org> wrote:
> On Sunday 04 September 2022 23:30:58 Dmitry Torokhov wrote:
> > I would like to stop exporting OF-specific devm_gpiod_get_from_of_node(=
)
> > so that gpiolib can be cleaned a bit, so let's switch to the generic
> > device property API.
> >
> > I believe that the only reason the driver, instead of the standard
> > devm_gpiod_get_optional(), used devm_gpiod_get_from_of_node() is
> > because it wanted to set up a pretty consumer name for the GPIO,
>
> IIRC consumer name is not used at all.

It's. The user space tools use it as a label. So, GPIO line can have
"name" (this is provider specific) and "label" (which is consumer
specific, i.o.w. how we use this line).

...

> > +             if (ret !=3D -EPROBE_DEFER)
> > +                     dev_err(dev, "Failed to get reset-gpio: %i\n",
> > +                             ret);
> > +             return ret;

I understand that in the input subsystem maintainer's hat you don't
like dev_err_probe(), but it's a good case to have it here.

...

> > +     ret =3D gpiod_set_consumer_name(pcie->reset_gpio, "pcie1-reset");
> > +     if (ret) {
> > +             dev_err(dev, "Failed to set reset gpio name: %d\n", ret);
> > +             return ret;
> >       }

Ditto.


--=20
With Best Regards,
Andy Shevchenko