[PATCH v2 06/10] gpio: provide gpiod_is_shared()

[Linus Walleij]

On Wed, Oct 22, 2025 at 3:11 PM Bartosz Golaszewski <brgl at bgdev.pl> wrote:

> From: Bartosz Golaszewski <bartosz.golaszewski at linaro.org>
>
> Provide an interface allowing consumers to check if a GPIO descriptor
> represents a GPIO that can potentially be shared by multiple consumers
> at the same time. This is exposed to allow subsystems that already
> work around the limitations of the current non-exclusive GPIO handling
> in some ways, to gradually convert to relying on the new shared GPIO
> feature of GPIOLIB.
>
> Extend the gpiolib-shared module to mark the GPIO shared proxy
> descriptors with a flag checked by the new interface.
>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski at linaro.org>

Reviewed-by: Linus Walleij <linus.walleij at linaro.org>

Yours,
Linus Walleij