Re: [PATCH v2 7/8] gpiolib: remove gpio_to_chip

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On Tue, Nov 09, 2021 at 11:02:06AM +0100, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@xxxxxxxx>
> 
> There are only two callers of this helper, remove them by
> open-coding the call to the gpiod version.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>

> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> ---
>  drivers/pinctrl/core.c    | 5 ++---
>  drivers/soc/fsl/qe/gpio.c | 4 +---
>  include/linux/gpio.h      | 7 -------
>  3 files changed, 3 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
> index 976607758e98..8d3c00782178 100644
> --- a/drivers/pinctrl/core.c
> +++ b/drivers/pinctrl/core.c
> @@ -28,7 +28,6 @@

>  #ifdef CONFIG_GPIOLIB

I'm wondering if we need this ifdeffery at all.

>  #include "../gpio/gpiolib.h"
> -#include <linux/gpio.h>
>  #endif
>  
>  #include "core.h"
> @@ -324,7 +323,7 @@ static bool pinctrl_ready_for_gpio_range(unsigned gpio)
>  {
>  	struct pinctrl_dev *pctldev;
>  	struct pinctrl_gpio_range *range = NULL;
> -	struct gpio_chip *chip = gpio_to_chip(gpio);
> +	struct gpio_chip *chip = gpiod_to_chip(gpio_to_desc(gpio));
>  
>  	if (WARN(!chip, "no gpio_chip for gpio%i?", gpio))
>  		return false;
> @@ -1657,7 +1656,7 @@ static int pinctrl_pins_show(struct seq_file *s, void *what)
>  			}
>  		}
>  		if (gpio_num >= 0)
> -			chip = gpio_to_chip(gpio_num);
> +			chip = gpiod_to_chip(gpio_to_desc(gpio_num));
>  		else
>  			chip = NULL;
>  		if (chip)
> diff --git a/drivers/soc/fsl/qe/gpio.c b/drivers/soc/fsl/qe/gpio.c
> index 99f7de43c3c6..a6aa55055e9a 100644
> --- a/drivers/soc/fsl/qe/gpio.c
> +++ b/drivers/soc/fsl/qe/gpio.c
> @@ -15,8 +15,6 @@
>  #include <linux/of.h>
>  #include <linux/of_gpio.h>
>  #include <linux/gpio/driver.h>
> -/* FIXME: needed for gpio_to_chip() get rid of this */
> -#include <linux/gpio.h>
>  #include <linux/slab.h>
>  #include <linux/export.h>
>  #include <soc/fsl/qe/qe.h>
> @@ -173,7 +171,7 @@ struct qe_pin *qe_pin_request(struct device_node *np, int index)
>  	err = of_get_gpio(np, index);
>  	if (err < 0)
>  		goto err0;
> -	gc = gpio_to_chip(err);
> +	gc = gpiod_to_chip(gpio_to_desc(err));
>  	if (WARN_ON(!gc)) {
>  		err = -ENODEV;
>  		goto err0;
> diff --git a/include/linux/gpio.h b/include/linux/gpio.h
> index 7ceb93678689..61fb427b4e70 100644
> --- a/include/linux/gpio.h
> +++ b/include/linux/gpio.h
> @@ -96,12 +96,6 @@ static inline bool gpio_is_valid(int number)
>  
>  struct device;
>  
> -/* caller holds gpio_lock *OR* gpio is marked as requested */
> -static inline struct gpio_chip *gpio_to_chip(unsigned gpio)
> -{
> -	return gpiod_to_chip(gpio_to_desc(gpio));
> -}
> -
>  /* Always use the library code for GPIO management calls,
>   * or when sleeping may be involved.
>   */
> @@ -158,7 +152,6 @@ int devm_gpio_request_one(struct device *dev, unsigned gpio,
>  #include <linux/bug.h>
>  
>  struct device;
> -struct gpio_chip;
>  
>  static inline bool gpio_is_valid(int number)
>  {
> -- 
> 2.29.2
> 

-- 
With Best Regards,
Andy Shevchenko





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