tree c687de5e960d0bb4c1de07f1b322119e46859349
parent ddae9fcddc48d1e624c941148d0df5a4fc7d7d5c
author Simon Glass <sjg@chromium.org> 1491845695 -0600
committer Simon Glass <sjg@chromium.org> 1492220337 -0600

dm: led: Add support for getting the state of an LED

It is useful to be able to read the LED as well as write it. Add this to
the uclass and update the GPIO driver.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ziping Chen <techping.chan@gmail.com>