linux-kernel - Re: [PATCH 1/2] gpio: regmap: Support few IC specific operations

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Date:   Thu, 20 May 2021 11:39:26 +0000
From:   "Vaittinen, Matti" <Matti.Vaittinen@...rohmeurope.com>
To:     "Vaittinen, Matti" <Matti.Vaittinen@...rohmeurope.com>
CC:     linux-power <linux-power@...rohmeurope.com>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "bgolaszewski@...libre.com" <bgolaszewski@...libre.com>,
        "michael@...le.cc" <michael@...le.cc>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linus.walleij@...aro.org" <linus.walleij@...aro.org>
Subject: Re: [PATCH 1/2] gpio: regmap: Support few IC specific operations


On Thu, 2021-05-20 at 14:28 +0300, Matti Vaittinen wrote:
> The set_config and init_valid_mask GPIO operations are usually very
> IC
> specific. Allow IC drivers to provide these custom operations at
> gpio-regmap registration.
> 
> Signed-off-by: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>

Ouch. Immediately after sending this I noticed that I omitted the
cover-letter. Sorry folks.

In a nutshell - idea is to support providing some IC specific
operations at gpio_regmap registration. This should help broaden the
gpio-regmap IC coverage without the need of exposing the gpio_chip.

Some preliminary discussion can be seen here:
https://lore.kernel.org/linux-gpio/c4faac648d3e0c7f3dcb50f7e24c8b322e8c6974.camel@fi.rohmeurope.com/

Best Regards
	Matti Vaittinen


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