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From:   Andy Shevchenko <andy.shevchenko@gmail.com>
Date:   Wed, 1 Jul 2020 00:27:31 +0300
Message-ID: <CAHp75VcxQ-qK+RYmfULDx3cHQW9W8__-Gf8EFw7Hgqsz0oPkjA@mail.gmail.com>
Subject: Re: [PATCH v6] gpio: pca953x: Add Maxim MAX7313 PWM support
To:     =?UTF-8?Q?Uwe_Kleine=2DK=C3=B6nig?= 
        <u.kleine-koenig@pengutronix.de>
Cc:     Bartosz Golaszewski <bgolaszewski@baylibre.com>,
        Miquel Raynal <miquel.raynal@bootlin.com>,
        Thierry Reding <thierry.reding@gmail.com>,
        Linus Walleij <linus.walleij@linaro.org>,
        linux-gpio <linux-gpio@vger.kernel.org>,
        linux-pwm@vger.kernel.org,
        Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
        LKML <linux-kernel@vger.kernel.org>
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On Tue, Jun 30, 2020 at 3:45 PM Uwe Kleine-K=C3=B6nig
<u.kleine-koenig@pengutronix.de> wrote:
> On Tue, Jun 30, 2020 at 11:13:31AM +0200, Bartosz Golaszewski wrote:
> > I can't find anything in any of the previous threads. What was the
> > reason to not go the MFD way here?
>
> MFD doesn't work because the different "modes" are not orthogonal. So
> this is not a single device that provides several functions at the same
> time that can be used in parallel.

Did I get this correctly that it's either *all* pins are GPIO or *all* are =
PWM?

Otherwise, it fits from my point of view.

--=20
With Best Regards,
Andy Shevchenko