Revert
- https://chromium-review.googlesource.com/#/c/205145/2
- https://chromium-review.googlesource.com/#/c/205147/4
Now using the real AC_PRESENT gpio signal instead of whether or
not the PD MCU negotiated for 20V.
BUG=chrome-os-partner:29841, chrome-os-partner:29842
BRANCH=none
TEST=tested on a board with reworked AC_PRESENT signal. Verified
that gpio is correctly reporting state of AC and is charging when
AC is plugged in. Tested the no battery case to make sure
board powers on and stays on with just a charger. Also tested the
dead battery case by plugging in a dead battery, then plugging in
a charger and making sure system powers on and starts charging.
Change-Id: I4424771c91c8a2aa19eda68a8b5194e9265d529c
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/206598
Reviewed-by: Bill Richardson <wfrichar@chromium.org>