gpiolib: provide gpiod_to_gpio_device()

Accessing struct gpio_chip backing a GPIO device is only allowed for the
actual providers of that chip.

Similarly to how we introduced gpio_device_find() in order to replace
the abused gpiochip_find(), let's introduce a counterpart to
gpiod_to_chip() that returns a reference to the GPIO device owning the
descriptor. This is done in order to later remove gpiod_to_chip()
entirely.

Signed-off-by: Bartosz Golaszewski <[email protected]>
Reviewed-by: Peter Rosin <[email protected]>
Acked-by: Linus Walleij <[email protected]>

0 files changed, 0 insertions, 0 deletions