kernel/linux.git/include/linux/gpio, branch v6.18.21

gpio: regmap: add the .fixed_direction_output configuration parameter

2025-10-22T06:52:17+00:00

There are GPIO controllers such as the one present in the LX2160ARDB QIXIS FPGA which have fixed-direction input and output GPIO lines mixed together in a single register. This cannot be modeled using the gpio-regmap as-is since there is no way to present the true direction of a GPIO line. In order to make this use case possible, add a new configuration parameter - fixed_direction_output - into the gpio_regmap_config structure. This will enable user drivers to provide a bitmap that represents the fixed direction of the GPIO lines. Signed-off-by: Ioana Ciornei Acked-by: Bartosz Golaszewski Reviewed-by: Michael Walle Signed-off-by: Bartosz Golaszewski

gpio: generic: move GPIO_GENERIC_ flags to the correct header

2025-09-24T11:52:35+00:00

These flags are specific to gpio-mmio and belong in linux/gpio/generic.h so move them there. Link: https://lore.kernel.org/r/20250917-gpio-generic-flags-v1-2-69f51fee8c89@linaro.org Signed-off-by: Bartosz Golaszewski

gpio: generic: rename BGPIOF_ flags to GPIO_GENERIC_

2025-09-24T11:52:35+00:00

Make the flags passed to gpio_generic_chip_init() use the same prefix as the rest of the modernized generic GPIO chip API. Link: https://lore.kernel.org/r/20250917-gpio-generic-flags-v1-1-69f51fee8c89@linaro.org Signed-off-by: Bartosz Golaszewski

Merge tag 'ib-mfd-gpio-input-pinctrl-pwm-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into gpio/for-next

2025-09-18T10:39:22+00:00

Pull changes from the immutable branch between MFD, GPIO, Input, Pinctrl and PWM trees containing the GPIO driver for max7360.

gpio: nomadik: fix the debugfs helper stub

2025-09-17T08:55:57+00:00

Commit ddeb66d2cb10 ("gpio: nomadik: don't print out global GPIO numbers in debugfs callbacks") failed to also update the stub of the debugfs helper for !CONFIG_DEBUG_FS. Fix the resulting build failure. Fixes: ddeb66d2cb10 ("gpio: nomadik: don't print out global GPIO numbers in debugfs callbacks") Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202509132232.12viPUPB-lkp@intel.com/ Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20250915091007.28438-1-brgl@bgdev.pl Signed-off-by: Bartosz Golaszewski

gpio: regmap: Allow to provide init_valid_mask callback

2025-09-16T14:24:48+00:00

Allows to populate the gpio_regmap_config structure with init_valid_mask() callback to set on the final gpio_chip structure. Reviewed-by: Michael Walle Reviewed-by: Andy Shevchenko Reviewed-by: Linus Walleij Reviewed-by: Bartosz Golaszewski Signed-off-by: Mathieu Dubois-Briand Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-6-435cfda2b1ea@bootlin.com Signed-off-by: Lee Jones

gpio: regmap: Allow to allocate regmap-irq device

2025-09-16T14:24:48+00:00

GPIO controller often have support for IRQ: allow to easily allocate both gpio-regmap and regmap-irq in one operation. Reviewed-by: Andy Shevchenko Acked-by: Bartosz Golaszewski Signed-off-by: Mathieu Dubois-Briand Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-5-435cfda2b1ea@bootlin.com Signed-off-by: Lee Jones

gpio: move gpio-mmio-specific fields out of struct gpio_chip

2025-09-12T07:22:45+00:00

With all users of bgpio_init() converted to using the modernized generic GPIO chip API, we can now move the gpio-mmio-specific fields out of struct gpio_chip and into the dedicated struct gpio_generic_chip. To that end: adjust the gpio-mmio driver to the new layout, update the docs, etc. The changes in gpio-mlxbf2.c and gpio-mpc8xxx.c are here and not in their respective conversion commits because the former passes the address of the generic chip's lock to the __releases() annotation and we cannot really hide it while gpio-mpc8xxx.c accesses the shadow registers in a driver-specific workaround and there's no reason to make them available in a public API. Also: drop the relevant task from TODO as it's now done. Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20250910-gpio-mmio-gpio-conv-part4-v2-15-f3d1a4c57124@linaro.org Signed-off-by: Bartosz Golaszewski

gpio: nomadik: don't print out global GPIO numbers in debugfs callbacks

2025-09-03T07:38:13+00:00

In order to further limit the number of references to the GPIO base number stored in struct gpio_chip, replace the global GPIO numbers in the output of debugfs callbacks by hardware offsets. Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20250826-gpio-dbg-show-base-v1-2-7f27cd7f2256@linaro.org Signed-off-by: Bartosz Golaszewski

gpio: generic: provide helpers for reading and writing registers

2025-08-25T10:05:37+00:00

Provide helpers wrapping the read_reg() and write_reg() callbacks of the generic GPIO API that are called directly by many users. This is done to hide their implementation ahead of moving them into the separate generic GPIO struct. Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20250825-gpio-mmio-gpio-conv-v1-2-356b4b1d5110@linaro.org Signed-off-by: Bartosz Golaszewski