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From:   Linus Walleij <linus.walleij@linaro.org>
Date:   Thu, 26 Mar 2020 22:26:30 +0100
Message-ID: <CACRpkdZuQrPqFPyoop9pv6MVwqwz_C6ZNKMxWqSFXdAMkhbsvQ@mail.gmail.com>
Subject: Re: [PATCH v6 5/8] gpiolib: Introduce gpiod_set_config()
To:     Geert Uytterhoeven <geert+renesas@glider.be>
Cc:     Bartosz Golaszewski <bgolaszewski@baylibre.com>,
        Jonathan Corbet <corbet@lwn.net>,
        Harish Jenny K N <harish_kandiga@mentor.com>,
        Eugeniu Rosca <erosca@de.adit-jv.com>,
        Alexander Graf <graf@amazon.com>,
        Peter Maydell <peter.maydell@linaro.org>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Phil Reid <preid@electromag.com.au>,
        Marc Zyngier <marc.zyngier@arm.com>,
        Christoffer Dall <christoffer.dall@arm.com>,
        Magnus Damm <magnus.damm@gmail.com>,
        Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
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On Tue, Mar 24, 2020 at 2:57 PM Geert Uytterhoeven
<geert+renesas@glider.be> wrote:

> The GPIO Aggregator will need a method to forward a .set_config() call
> to its parent gpiochip.  This requires obtaining the gpio_chip and
> offset for a given gpio_desc.  While gpiod_to_chip() is public,
> gpio_chip_hwgpio() is not, so there is currently no method to obtain the
> needed GPIO offset parameter.
>
> Hence introduce a public gpiod_set_config() helper, which invokes the
> .set_config() callback through a gpio_desc pointer, like is done for
> most other gpio_chip callbacks.
>
> Rewrite the existing gpiod_set_debounce() helper as a wrapper around
> gpiod_set_config(), to avoid duplication.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> ---
> v6:
>   - New.

This is nice, I tried to actually just apply this (you also sent some
two cleanups that I tried to apply) byt Yue's cleanup patch
commit d18fddff061d2796525e6d4a958cb3d30aed8efd
"gpiolib: Remove duplicated function gpio_do_set_config()"
makes none of them apply :/

Yours,
Linus Walleij