linux-kernel - Re: [PATCH v2 4/4] gpio: i8255: Migrate to regmap API

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Message-ID: <Y3ZflHI6CYfaGIbn@sirena.org.uk>
Date:   Thu, 17 Nov 2022 16:21:40 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Michael Walle <michael@...le.cc>
Cc:     William Breathitt Gray <william.gray@...aro.org>,
        linus.walleij@...aro.org, brgl@...ev.pl,
        andriy.shevchenko@...ux.intel.com, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/4] gpio: i8255: Migrate to regmap API

On Thu, Nov 17, 2022 at 05:18:55PM +0100, Michael Walle wrote:
> Am 2022-11-11 02:55, schrieb William Breathitt Gray:

> > +	gpio_config.parent = config->parent;
> > +	gpio_config.regmap = config->map;

> I'd propose to add a new config flag to indicate that accesses to
> the device will be fast:

> gpio_config.regmap_has_fast_io = true;

> which will then set gpio->can_sleep = false.

It's probably useful to provide a query function in the regmap
API for generic regmap users like this.

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