linux-kernel - Re: [PATCH v4 0/2] gpio: generic regmap implementation

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Date:   Wed, 27 May 2020 15:20:20 +0200
From:   Bartosz Golaszewski <bgolaszewski@...libre.com>
To:     Michael Walle <michael@...le.cc>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        linux-gpio <linux-gpio@...r.kernel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Mark Brown <broonie@...nel.org>,
        Pierre-Louis Bossart <pierre-louis.bossart@...el.com>
Subject: Re: [PATCH v4 0/2] gpio: generic regmap implementation

pon., 25 maj 2020 o 18:07 Michael Walle <michael@...le.cc> napisał(a):
>
> This series is a split off of the sl28cpld series:
> https://lore.kernel.org/linux-gpio/20200423174543.17161-1-michael@walle.cc/
>
> I wasn't sure if I should also include the gpiochip_irqchip_add_domain()
> patch here. So feel free to skip it. OTOH if you use interrupts with
> gpio-regmap it is quite handy.
>
> For an actual user see the patch 11/16 ("gpio: add support for the sl28cpld
> GPIO controller") of the series above.
>
> Changes since v3:
>  - set reg_dat_base, that was actually broken
>  - fix typo
>  - fix swapped reg_in_dir/reg_out_dir documentation
>  - use "goto err" in error path in gpio_regmap_register()
>
> Changes since v2:
>  See changelog in the former patch series.
>
> Michael Walle (2):
>   gpiolib: Introduce gpiochip_irqchip_add_domain()
>   gpio: add a reusable generic gpio_chip using regmap
>
>  drivers/gpio/Kconfig        |   4 +
>  drivers/gpio/Makefile       |   1 +
>  drivers/gpio/gpio-regmap.c  | 343 ++++++++++++++++++++++++++++++++++++
>  drivers/gpio/gpiolib.c      |  20 +++
>  include/linux/gpio-regmap.h |  69 ++++++++
>  include/linux/gpio/driver.h |   3 +
>  6 files changed, 440 insertions(+)
>  create mode 100644 drivers/gpio/gpio-regmap.c
>  create mode 100644 include/linux/gpio-regmap.h
>
> --
> 2.20.1
>

Both patches look good to me. I'd say we should apply them now and
then fix any potential problems during the v5.8 release cycle. It's
not like it's a user-space facing, stable interface, we don't have to
be super careful when merging this kind of stuff.

Bart