kernel/linux.git/include/linux/gpio.h, branch v6.19.11

gpiolib: make legacy interfaces optional

2025-07-24T14:24:49+00:00

The traditional interfaces are only used on a small number of ancient boards. Make these optional now so they can be disabled by default. Signed-off-by: Arnd Bergmann Reviewed-by: Alexander Sverdlin Link: https://lore.kernel.org/r/20250722153634.3683927-1-arnd@kernel.org Signed-off-by: Bartosz Golaszewski

gpiolib: Move GPIO_DYNAMIC_* constants to its only user

2025-06-10T08:08:34+00:00

There is no need to export GPIO_DYNAMIC_* constants, especially via legacy header which is subject to remove. Move the mentioned constants to its only user, i.e. gpiolib.c. Signed-off-by: Andy Shevchenko Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20250531195801.3632110-3-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski

gpio: Remove unused 'struct gpio' definition

2025-06-10T08:08:34+00:00

There is no user for the legacy 'struct gpio', remove it for good. Signed-off-by: Andy Shevchenko Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20250531195801.3632110-2-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski

gpiolib: Remove unused devm_gpio_request()

2025-06-10T08:06:41+00:00

Remove devm_gpio_request() due to lack of users. Signed-off-by: Andy Shevchenko Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20250531212331.3635269-3-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski

gpiolib: make value setters have return values

2025-02-26T10:17:39+00:00

Change the in-kernel consumer interface for GPIOs: make all variants of value setters that don't have a return value, return a signed integer instead. That will allow these routines to indicate failures to callers. This doesn't change the implementation just yet, we'll do it in subsequent commits. We need to update the gpio-latch module as it passes the address of value setters as a function pointer argument and thus cares about its type. Reviewed-by: Linus Walleij Acked-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20250220-gpio-set-retval-v2-2-bc4cfd38dae3@linaro.org Signed-off-by: Bartosz Golaszewski

gpio: Get rid of GPIOF_ACTIVE_LOW

2024-11-09T13:55:33+00:00

No more users. Signed-off-by: Andy Shevchenko Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20241104093609.156059-7-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski

gpiolib: legacy: Kill GPIOF_DIR_* definitions

2024-09-02T09:47:06+00:00

Besides the fact that (old) drivers use wrong definitions, e.g., GPIOF_DIR_IN instead of GPIOF_IN, shrink the legacy definitions by killing those GPIOF_DIR_* completely. Signed-off-by: Andy Shevchenko Reviewed-by: Linus Walleij Acked-by: Alexander Sverdlin Reviewed-by: Alexander Sverdlin Link: https://lore.kernel.org/r/20240828142554.2424189-3-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski

gpiolib: legacy: Kill GPIOF_INIT_* definitions

2024-09-02T09:47:06+00:00

Besides the fact that (old) drivers use wrong definitions, e.g., GPIOF_INIT_HIGH instead of GPIOF_OUT_INIT_HIGH, shrink the legacy definitions by killing those GPIOF_INIT_* completely. Signed-off-by: Andy Shevchenko Reviewed-by: Linus Walleij Acked-by: Alexander Sverdlin Reviewed-by: Alexander Sverdlin Link: https://lore.kernel.org/r/20240828142554.2424189-2-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski

gpio: Remove legacy API documentation

2024-05-27T14:50:03+00:00

In order to discourage people to use old and legacy GPIO APIs remove the respective documentation completely. It also helps further cleanups of the legacy GPIO API leftovers, which is ongoing task. Signed-off-by: Andy Shevchenko Reviewed-by: Hu Haowen <2023002089@link.tyut.edu.cn> Link: https://lore.kernel.org/r/20240508101703.830066-1-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski

gpiolib: Get rid of never false gpio_is_valid() calls

2024-04-17T20:46:44+00:00

In the cases when gpio_is_valid() is called with unsigned parameter the result is always true in the GPIO library code, hence the check for false won't ever be true. Get rid of such calls. While at it, move GPIO device base to be unsigned to clearly show it won't ever be negative. This requires a new definition for the maximum GPIO number in the system. Signed-off-by: Andy Shevchenko Reviewed-by: Linus Walleij Signed-off-by: Bartosz Golaszewski