linux-kernel - Re: [PATCH v1 1/1] gpiolib: Remove unused of_mm_gpiochip

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Date:   Fri, 13 Jan 2023 14:28:26 -0600
From:   Rob Herring <robh@...nel.org>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Marc Zyngier <maz@...nel.org>,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Frank Rowand <frowand.list@...il.com>
Subject: Re: [PATCH v1 1/1] gpiolib: Remove unused of_mm_gpiochip_add()

On Thu, Jan 12, 2023 at 04:45:26PM +0200, Andy Shevchenko wrote:
> of_mm_gpiochip_add() is unused API, remove it for good.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> ---
>  drivers/gpio/TODO       | 4 ++--
>  include/linux/of_gpio.h | 5 -----
>  2 files changed, 2 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpio/TODO b/drivers/gpio/TODO
> index 76560744587a..68ada1066941 100644
> --- a/drivers/gpio/TODO
> +++ b/drivers/gpio/TODO
> @@ -61,8 +61,8 @@ Work items:
>  
>  - Get rid of struct of_mm_gpio_chip altogether: use the generic  MMIO
>    GPIO for all current users (see below). Delete struct of_mm_gpio_chip,
> -  to_of_mm_gpio_chip(), of_mm_gpiochip_add_data(), of_mm_gpiochip_add()
> -  of_mm_gpiochip_remove() from the kernel.
> +  to_of_mm_gpio_chip(), of_mm_gpiochip_add_data(), of_mm_gpiochip_remove()
> +  from the kernel.
>  
>  - Change all consumer drivers that #include <linux/of_gpio.h> to
>    #include <linux/gpio/consumer.h> and stop doing custom parsing of the
> diff --git a/include/linux/of_gpio.h b/include/linux/of_gpio.h
> index e27a9187c0c6..935225caf70d 100644
> --- a/include/linux/of_gpio.h
> +++ b/include/linux/of_gpio.h
> @@ -56,11 +56,6 @@ extern int of_get_named_gpio(const struct device_node *np,
>  extern int of_mm_gpiochip_add_data(struct device_node *np,
>  				   struct of_mm_gpio_chip *mm_gc,
>  				   void *data);
> -static inline int of_mm_gpiochip_add(struct device_node *np,
> -				     struct of_mm_gpio_chip *mm_gc)
> -{
> -	return of_mm_gpiochip_add_data(np, mm_gc, NULL);
> -}
>  extern void of_mm_gpiochip_remove(struct of_mm_gpio_chip *mm_gc);

Keep going!

Looks like of_get_gpio_flags, of_get_gpio, of_gpio_count, 
of_gpio_named_count, and of_get_named_gpio_flags are all unused.

Rob