linux-kernel - Re: [PATCH v3 1/6] gpio: regmap: Add quirk for output data register

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Message-ID: <CAMpxmJX8gw_A36YAg4hTx3bT4-7NGk_KCoEHrKfeVXnJ-01Vsw@mail.gmail.com>
Date:   Mon, 31 May 2021 09:25:09 +0200
From:   Bartosz Golaszewski <bgolaszewski@...libre.com>
To:     Sander Vanheule <sander@...nheule.net>
Cc:     Pavel Machek <pavel@....cz>, Rob Herring <robh+dt@...nel.org>,
        Lee Jones <lee.jones@...aro.org>,
        Mark Brown <broonie@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Michael Walle <michael@...le.cc>,
        Linus Walleij <linus.walleij@...aro.org>,
        Linux LED Subsystem <linux-leds@...r.kernel.org>,
        linux-devicetree <devicetree@...r.kernel.org>,
        linux-gpio <linux-gpio@...r.kernel.org>,
        Andrew Lunn <andrew@...n.ch>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 1/6] gpio: regmap: Add quirk for output data register

On Mon, May 24, 2021 at 12:34 AM Sander Vanheule <sander@...nheule.net> wrote:
>
> GPIO chips may not support setting the output value when a pin is
> configured as an input, although the current implementation assumes this
> is always possible.
>
> Add support for setting pin direction before value. The order defaults
> to setting the value first, but this can be reversed by setting the
> GPIO_REGMAP_QUIRK_SET_DIRECTION_FIRST flag in regmap_config.quirks.
>
> Signed-off-by: Sander Vanheule <sander@...nheule.net>
> ---

Acked-by: Bartosz Golaszewski <bgolaszewski@...libre.com>