linux-kernel - Re: [PATCH v5 1/5] gpiolib: Add support for gpiochipN-based table lookup

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Date:   Tue, 17 Mar 2020 09:41:47 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Jonathan Corbet <corbet@....net>,
        Harish Jenny K N <harish_kandiga@...tor.com>,
        Eugeniu Rosca <erosca@...adit-jv.com>,
        Alexander Graf <graf@...zon.com>,
        Peter Maydell <peter.maydell@...aro.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Phil Reid <preid@...ctromag.com.au>,
        Marc Zyngier <marc.zyngier@....com>,
        Christoffer Dall <christoffer.dall@....com>,
        Magnus Damm <magnus.damm@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linux Doc Mailing List <linux-doc@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        QEMU Developers <qemu-devel@...gnu.org>
Subject: Re: [PATCH v5 1/5] gpiolib: Add support for gpiochipN-based table lookup

Hi Linus,

On Thu, Mar 12, 2020 at 3:23 PM Linus Walleij <linus.walleij@...aro.org> wrote:
> On Tue, Feb 18, 2020 at 4:18 PM Geert Uytterhoeven
> <geert+renesas@...der.be> wrote:
>
> > Currently GPIO controllers can only be referred to by label in GPIO
> > lookup tables.
> >
> > Add support for looking them up by "gpiochipN" name, with "N" the
> > corresponding GPIO device's ID number.
> >
> > Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
> > Reviewed-by: Ulrich Hecht <uli+renesas@...nd.eu>
> > Reviewed-by: Eugeniu Rosca <erosca@...adit-jv.com>
> > Tested-by: Eugeniu Rosca <erosca@...adit-jv.com>
>
> Just like with patch 2/5 I have the same problem here that
> the commit message doesn't state the technical reason why
> we need to change this and support the device name in these
> tables and not just labels.

As these "gpiochipN" names are not stable, I will drop this patch, and
the related support.

Gr{oetje,eeting}s,

                        Geert


--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds