regulator: wm831x-isink: Select maximum current in specific range

.set_current_limit callback should select the current closest to max_uA.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
1 file changed