Add gpio support for the Congatec Board Controller.
This Board Controller has 14 GPIO pins.
The driver is probed by the Congatec Board Controller MFD driver.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Thomas Richard <thomas.richard@bootlin.com>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20241001-congatec-board-controller-v3-2-39ceceed5c47@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>