kernel/linux.git/include/linux/gpio.h, branch v6.10.7

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

gpiolib: legacy: Remove unused gpio_request_array() and gpio_free_array()

2024-04-03T11:07:52+00:00

No more users. Signed-off-by: Andy Shevchenko Reviewed-by: Yanteng Si Signed-off-by: Bartosz Golaszewski

gpiolib: remove unused gpio_cansleep()

2023-06-13T14:49:23+00:00

There is not a single user in the entire kernel of this deprecated API, kill it for good. Signed-off-by: Andy Shevchenko Reviewed-by: Yanteng Si Reviewed-by: Linus Walleij Signed-off-by: Bartosz Golaszewski

gpiolib: Kill unused GPIOF_OPEN_*

2023-06-01T07:52:39+00:00

There is no use of the GPIOF_OPEN_* in the kernel. Kill it for good. Signed-off-by: Andy Shevchenko Reviewed-by: Linus Walleij Signed-off-by: Bartosz Golaszewski

gpiolib: Kill unused GPIOF_EXPORT and Co

2023-06-01T07:52:31+00:00

There is no use of the GPIOF_EXPORT in the kernel. Kill it for good. Signed-off-by: Andy Shevchenko Reviewed-by: Linus Walleij Signed-off-by: Bartosz Golaszewski

gpiolib: Clean up headers

2023-03-06T10:33:02+00:00

There is a few things done: - include only the headers we are direct user of - when pointer is in use, provide a forward declaration - add missing headers - group generic headers and subsystem headers - sort each group alphabetically Signed-off-by: Andy Shevchenko

gpiolib: remove legacy gpio_export()

2023-03-06T10:33:01+00:00

There are only a handful of users of gpio_export() and related functions. As these are just wrappers around the modern gpiod_export() helper, remove the wrappers and open-code the gpio_to_desc in all callers to shrink the legacy API. Reviewed-by: Andy Shevchenko Signed-off-by: Arnd Bergmann Reviewed-by: Linus Walleij Signed-off-by: Andy Shevchenko

gpiolib: remove gpio_set_debounce()

2023-03-06T10:33:01+00:00

gpio_set_debounce() only has a single user, which is trivially converted to gpiod_set_debounce(). Signed-off-by: Arnd Bergmann Reviewed-by: Linus Walleij Reviewed-by: Andy Shevchenko Signed-off-by: Andy Shevchenko

gpiolib: remove asm-generic/gpio.h

2023-03-06T10:33:01+00:00

The asm-generic/gpio.h file is now always included when using gpiolib, so just move its contents into linux/gpio.h with a few minor simplifications. Signed-off-by: Arnd Bergmann Reviewed-by: Linus Walleij Reviewed-by: Andy Shevchenko Signed-off-by: Andy Shevchenko

gpiolib: coldfire: remove custom asm/gpio.h

2023-03-06T10:33:01+00:00

Now that coldfire is the only user of a custom asm/gpio.h, it seems better to remove this as well, and have the same interface everywhere. For the gpio_get_value()/gpio_set_value()/gpio_to_irq(), gpio_cansleep() functions, the custom version is only a micro-optimization to inline the function for constant GPIO numbers. However, in the coldfire defconfigs, I was unable to find a single instance where this micro-optimization was even used, and according to Geert the only user appears to be the QSPI chip that is disabled everywhere. The custom gpio_request_one() function is even less useful, as it is guarded by an #ifdef that is never true. Reviewed-by: Geert Uytterhoeven Reviewed-by: Andy Shevchenko Acked-by: Bartosz Golaszewski Signed-off-by: Arnd Bergmann Reviewed-by: Linus Walleij Signed-off-by: Andy Shevchenko