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SubjectRe: [PATCH v2 1/2] gpiolib: Kill unused GPIOF_EXPORT and Co
On Tue, May 30, 2023 at 12:14 AM Andy Shevchenko
<andriy.shevchenko@linux.intel.com> wrote:
>
> There is no use of the GPIOF_EXPORT in the kernel. Kill it for good.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> v2: added tag (Linus)
> Documentation/driver-api/gpio/legacy.rst | 3 ---
> Documentation/translations/zh_CN/driver-api/gpio/legacy.rst | 3 ---
> Documentation/translations/zh_TW/gpio.txt | 3 ---
> drivers/gpio/gpiolib-legacy.c | 6 ------
> include/linux/gpio.h | 5 -----
> 5 files changed, 20 deletions(-)
>
> diff --git a/Documentation/driver-api/gpio/legacy.rst b/Documentation/driver-api/gpio/legacy.rst
> index 78372853c6d4..c5f98a78499f 100644
> --- a/Documentation/driver-api/gpio/legacy.rst
> +++ b/Documentation/driver-api/gpio/legacy.rst
> @@ -322,9 +322,6 @@ where 'flags' is currently defined to specify the following properties:
> * GPIOF_OPEN_DRAIN - gpio pin is open drain type.
> * GPIOF_OPEN_SOURCE - gpio pin is open source type.
>
> - * GPIOF_EXPORT_DIR_FIXED - export gpio to sysfs, keep direction
> - * GPIOF_EXPORT_DIR_CHANGEABLE - also export, allow changing direction
> -
> since GPIOF_INIT_* are only valid when configured as output, so group valid
> combinations as:
>
> diff --git a/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst b/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst
> index 84ce2322fdba..8720970393fb 100644
> --- a/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst
> +++ b/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst
> @@ -297,9 +297,6 @@ gpio_request()前将这类细节配置好,例如使用引脚控制子系统的
> * GPIOF_OPEN_DRAIN - gpio引脚为开漏信号
> * GPIOF_OPEN_SOURCE - gpio引脚为源极开路信号
>
> - * GPIOF_EXPORT_DIR_FIXED - 将 gpio 导出到 sysfs,并保持方向
> - * GPIOF_EXPORT_DIR_CHANGEABLE - 同样是导出, 但允许改变方向
> -
> 因为 GPIOF_INIT_* 仅有在配置为输出的时候才存在,所以有效的组合为:
>
> * GPIOF_IN - 配置为输入
> diff --git a/Documentation/translations/zh_TW/gpio.txt b/Documentation/translations/zh_TW/gpio.txt
> index 62e560ffe628..e0b96d897fa7 100644
> --- a/Documentation/translations/zh_TW/gpio.txt
> +++ b/Documentation/translations/zh_TW/gpio.txt
> @@ -303,9 +303,6 @@ gpio_request()前將這類細節配置好,例如使用 pinctrl 子系統的映
> * GPIOF_OPEN_DRAIN - gpio引腳爲開漏信號
> * GPIOF_OPEN_SOURCE - gpio引腳爲源極開路信號
>
> - * GPIOF_EXPORT_DIR_FIXED - 將 gpio 導出到 sysfs,並保持方向
> - * GPIOF_EXPORT_DIR_CHANGEABLE - 同樣是導出, 但允許改變方向
> -
> 因爲 GPIOF_INIT_* 僅有在配置爲輸出的時候才存在,所以有效的組合爲:
>
> * GPIOF_IN - 配置爲輸入
> diff --git a/drivers/gpio/gpiolib-legacy.c b/drivers/gpio/gpiolib-legacy.c
> index 028f7f504209..969f737012f6 100644
> --- a/drivers/gpio/gpiolib-legacy.c
> +++ b/drivers/gpio/gpiolib-legacy.c
> @@ -50,12 +50,6 @@ int gpio_request_one(unsigned gpio, unsigned long flags, const char *label)
> if (err)
> goto free_gpio;
>
> - if (flags & GPIOF_EXPORT) {
> - err = gpiod_export(desc, flags & GPIOF_EXPORT_CHANGEABLE);
> - if (err)
> - goto free_gpio;
> - }
> -
> return 0;
>
> free_gpio:
> diff --git a/include/linux/gpio.h b/include/linux/gpio.h
> index 8528353e073b..86963a00b018 100644
> --- a/include/linux/gpio.h
> +++ b/include/linux/gpio.h
> @@ -38,11 +38,6 @@ struct device;
> /* Gpio pin is open source */
> #define GPIOF_OPEN_SOURCE (1 << 4)
>
> -#define GPIOF_EXPORT (1 << 5)
> -#define GPIOF_EXPORT_CHANGEABLE (1 << 6)
> -#define GPIOF_EXPORT_DIR_FIXED (GPIOF_EXPORT)
> -#define GPIOF_EXPORT_DIR_CHANGEABLE (GPIOF_EXPORT | GPIOF_EXPORT_CHANGEABLE)
> -
> /**
> * struct gpio - a structure describing a GPIO with configuration
> * @gpio: the GPIO number
> --
> 2.40.0.1.gaa8946217a0b
>

Both applied, thanks!

Bart

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