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

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Date:   Mon, 7 Jun 2021 09:08:37 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Sergio Paracuellos <sergio.paracuellos@...il.com>
Cc:     "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] pinctrl: ralink: pinctrl-rt2880: avoid to error in calls
 is pin is already enabled

On Fri, Jun 4, 2021 at 7:53 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>

Patch applied for fixes.

Yours,
Linus Walleij