regulator: max77686: Document gpio properties

Document usage of maxim,ena-gpios properties which turn on external/GPIO
control over regulator.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Krzysztof Kozlowski 2015-01-05 12:48:44 +01:00 • committed by Mark Brown
commit 64d3d25c9b