linux-kernel - Re: [PATCH v3 1/2] gpio: 104-dio-48e: Implement struct dio48e

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Message-ID: <ZDWopwozNjFg/9NX@fedora>
Date:   Tue, 11 Apr 2023 14:36:23 -0400
From:   William Breathitt Gray <william.gray@...aro.org>
To:     Mark Brown <broonie@...nel.org>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: Re: [PATCH v3 1/2] gpio: 104-dio-48e: Implement struct dio48e_gpio

On Tue, Apr 11, 2023 at 09:23:55PM +0100, Mark Brown wrote:
> On Mon, Mar 20, 2023 at 10:50:15AM -0400, William Breathitt Gray wrote:
> > A private data structure struct dio48e_gpio is introduced to facilitate
> > passage of the regmap and IRQ mask state for the device to the callback
> > dio48e_handle_mask_sync(). This is in preparation for the removal of the
> > handle_mask_sync() map parameter in a subsequent patch.
> 
> What's the story with this patch?

Currently dio48e_handle_mask_sync() uses the map argument in its
implementation. Once the map parameter is removed, the current
implementation of dio48e_handle_mask_sync() will no longer build, so we
must adjust the implementation to no longer depend on map.

The reason for this particular patch is to keep the reimplementation of
dio48e_handle_mask_sync() separate so that the handle_mask_sync() map
parameter removal patch is simple. This keeps the git history clear
and allows us to address any possible regressions to 104-dio-48e
separately without affecting the handle_mask_sync() API.

William Breathitt Gray

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