linux-kernel - Re: [PATCH v3 0/3] am335x: set pinmux registers from pins debug file

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Message-ID: <CACRpkdanh32PREaYhN1dW1p0GDamSZ04WgRr-afm+6L-c1fJCg@mail.gmail.com>
Date:   Tue, 25 May 2021 02:18:25 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Dario Binacchi <dariobin@...ero.it>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>,
        Tony Lindgren <tony@...mide.com>,
        Drew Fustini <drew@...gleboard.org>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Haojian Zhuang <haojian.zhuang@...aro.org>,
        Jonathan Corbet <corbet@....net>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux Doc Mailing List <linux-doc@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linux-OMAP <linux-omap@...r.kernel.org>
Subject: Re: [PATCH v3 0/3] am335x: set pinmux registers from pins debug file

On Thu, May 20, 2021 at 10:27 PM Dario Binacchi <dariobin@...ero.it> wrote:

> The patch was born from the need to change the slew rate of the LCD pins
> of a custom AM335x board during EMC tests. The AM335x, as described in a
> note in section 9.1 of its reference manual [1], is unable to write
> pinmux registers from user space. The series now makes it possible to
> write these registers from the pins debug file.

I am going to hold this series back pending more discussion on the ABI
and whether it is useful.

Yours,
Linus Walleij