linux-kernel - Re: [PATCH v2] pinctrl: ralink: pinctrl-rt2880: avoid to error in calls if pin is already enabled

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Message-ID: <CAMhs-H9q4ZX_wpO1m6Dk-+LJtXBHiHVcfdE20GB3-u_49===+g@mail.gmail.com>
Date:   Mon, 7 Jun 2021 09:12:05 +0200
From:   Sergio Paracuellos <sergio.paracuellos@...il.com>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] pinctrl: ralink: pinctrl-rt2880: avoid to error in
 calls if pin is already enabled

Hi Linus,

On Mon, Jun 7, 2021 at 9:10 AM Linus Walleij <linus.walleij@...aro.org> wrote:
>
> On Fri, Jun 4, 2021 at 7:55 AM Sergio Paracuellos
> <sergio.paracuellos@...il.com> wrote:
>
> > In 'rt2880_pmx_group_enable' driver is printing an error and returning
> > -EBUSY if a pin has been already enabled. This becomes in anoying messages
> > in the caller when this happens like the following:
> >
> > rt2880-pinmux pinctrl: pcie is already enabled
> > mt7621-pci 1e140000.pcie: Error applying setting, reverse things back
> >
> > To avoid this just print the already enabled message in the pinctrl
> > driver and return 0 instead to don't confuse the user with a real
> > bad problem.
> >
> > Signed-off-by: Sergio Paracuellos <sergio.paracuellos@...il.com>
> > ---
> > Changes in v2:
> >     - Fix commit message s/is/if
>
> I just fixed up the commit manually instead, no big deal.

Oh, I see :)

Thanks!!
    Sergio Paracuellos
>
> Thanks!
> Linus Walleij