Re: [PATCH v8 09/18] gpiolib: regmap: add gpio_regmap_get_chip()

[Bartosz Golaszewski]

On Mon, 21 Sep 2026 06:23:28 +0200, Long Zhao via B4 Relay
<devnull+longzhao.ambarella.com@xxxxxxxxxx> said:
> From: Long Zhao <longzhao@xxxxxxxxxxxxx>
>
> Let drivers that implement a custom irqchip retrieve the gpio_chip
> after registration.
>
> Signed-off-by: Long Zhao <longzhao@xxxxxxxxxxxxx>
> ---
>  drivers/gpio/gpio-regmap.c  | 6 ++++++
>  include/linux/gpio/regmap.h | 1 +
>  2 files changed, 7 insertions(+)
>
> diff --git a/drivers/gpio/gpio-regmap.c b/drivers/gpio/gpio-regmap.c
> index fbd4c753525a..21e0993b89e2 100644
> --- a/drivers/gpio/gpio-regmap.c
> +++ b/drivers/gpio/gpio-regmap.c
> @@ -295,6 +295,12 @@ void *gpio_regmap_get_drvdata(struct gpio_regmap *gpio)
>  }
>  EXPORT_SYMBOL_GPL(gpio_regmap_get_drvdata);
>
> +struct gpio_chip *gpio_regmap_get_chip(struct gpio_regmap *gpio)
> +{
> +	return &gpio->gpio_chip;
> +}
> +EXPORT_SYMBOL_GPL(gpio_regmap_get_chip);

Please provide a kernel doc for all public APIs. It should explain that this
must not be used outside of a GPIO controller driver context.

Bart