In order to make these PIO4 definitions shared with AT91 PIO4 pinctrl driver, move them from the existing gpio driver to the head file, and rephrase them. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Reviewed-by: Simon Glass <sjg@chromium.org>
The PIO4 is introduced from SAMA5D2, as a new version for Atmel PIO controller. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>