Robo devices have a power button LED. For these devices the desried
power button LED behavior is:
S0 -> always on
S3 -> charging, then 500 mSec off, 3 seconds on
S3 -> not charging, always off
S5 -> always off
Because the hook tick runs at 200 msec, using 600 msec for the off
period when blinking in S3.
BUG=b:64015212
BRANCH=None
TEST=Manual
This LED is not connected on EVT, so added a wire on GPIO02 and used a
scope. Verifed that in S0 the signal level is low, and in S3 that it
control signal toggles 600 mSec high/3 sec low. Verifed than in S5
control signal is high.
Change-Id: I72438a009a507fcddaae5a673bf3bc83988f2dd5
Signed-off-by: Scott Collyer <scollyer@google.com>
Reviewed-on: https://chromium-review.googlesource.com/717183
Commit-Ready: Scott Collyer <scollyer@chromium.org>
Tested-by: Scott Collyer <scollyer@chromium.org>
Reviewed-by: Patrick Georgi <pgeorgi@chromium.org>
5436afc8f6