Commit bb475230b8 ("reset: make optional functions really optional")
gave a new meaning to _get_optional variants.
The differentiation by WARN_ON() is not needed any more. We already
have inconsistency about this; (devm_)reset_control_get_exclusive()
has WARN_ON() check, but of_reset_control_get_exclusive() does not.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>