`checkpatch.pl` requires that dts sources are indented with tabs,
fix all the spaces that slipped in while checkpatch wasn't watching.
Signed-off-by: Jordan Yates <jordan@embeint.com>
The pinsN group name can be a confusing in some circumstances, so change
it to groupN. Some platforms (e.g. nrf or gd32) are already using
groupN. Documentation and API tests have been updated.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Add a set of tests to check the API behavior. The API tests can only run
on a platform that does not have an actual pinctrl driver, e.g.
native_posix. The test itself implements a pinctrl mock driver and
provides the required "pinctrl_soc.h" header with required types/macros.
The implementation is used in the tests to verify the behavior of the
API or Devicetree macros.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
