Re: [PATCH] [v2] input: gpio-keys: make legacy gpiolib optional

[Dmitry Torokhov <dmitry.torokhov@gmail.com>]

On Mon, Apr 27, 2026 at 04:33:49PM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
> 
> Most users of gpio-keys and gpio-keys-polled use modern gpiolib
> interfaces, but there are still number of ancient sh, arm32 and x86
> machines that have never been converted.
> 
> Add an #ifdef block for the parts of the driver that are only used on
> those legacy machines.
> 
> The two Rohm PMIC drivers use a gpio-keys device without an actual GPIO,
> passing an IRQ number instead. In order to keep this working both with
> and with CONFIG_GPIOLIB_LEGACY, change the gpio-keys driver to ignore
> the gpio number if an IRQ is passed.
> 
> Link: https://lore.kernel.org/all/b3c94552-c104-42e3-be15-7e8362e8039e@gmail.com/
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> v2: skip the fake GPIO number passing from mfd
> ---
>  drivers/input/keyboard/gpio_keys.c        | 7 ++++---
>  drivers/input/keyboard/gpio_keys_polled.c | 2 ++
>  drivers/mfd/rohm-bd71828.c                | 1 -
>  drivers/mfd/rohm-bd718x7.c                | 1 -

Let's see if my patches to rohm drivers will get accepted and then maybe
we can remove legacy gpio API from gpio-keys altogether.

Thanks.

-- 
Dmitry