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

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Message-ID: <001c48fb08887cbec88f79ebe3bf644b@walle.cc>
Date:   Fri, 28 May 2021 08:40:49 +0200
From:   Michael Walle <michael@...le.cc>
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>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
        linux-gpio@...r.kernel.org, Andrew Lunn <andrew@...n.ch>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/6] gpio: regmap: Add quirk for output data register

Am 2021-05-24 00:33, schrieb Sander Vanheule:
> 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.

Nice! If this is really needed:

Reviewed-by: Michael Walle <michael@...le.cc>

-michael