linux-kernel - Re: [PATCH] pinctrl: core: Handling pinmux and pinconf separately

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Message-ID: <CACRpkdZMW1NQxvzQv3uDDoC4uxGpDUFocfP5i+Ya+n5RyQp69A@mail.gmail.com>
Date:   Thu, 11 Mar 2021 01:01:14 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Michal Simek <michal.simek@...inx.com>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Michal Simek <monstr@...str.eu>, git <git@...inx.com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>
Subject: Re: [PATCH] pinctrl: core: Handling pinmux and pinconf separately

On Wed, Mar 10, 2021 at 9:16 AM Michal Simek <michal.simek@...inx.com> wrote:

> Right now the handling order depends on how entries are coming which is
> corresponding with order in DT. We have reached the case with DT overlays
> where conf and mux descriptions are exchanged which ends up in sequence
> that firmware has been asked to perform configuration before requesting the
> pin.
> The patch is enforcing the order that pin is requested all the time first
> followed by pin configuration. This change will ensure that firmware gets
> requests in the right order.
>
> Signed-off-by: Michal Simek <michal.simek@...inx.com>

This looks right to me so I simply applied the patch so it  gets some
testing in linux-next.

If there are problems on some platform(s) we will get to know.

Yours,
Linus Walleij