Some PMIC chip (e.g. TPS65913) doesn't support the 8-second long key
press power-off. For this, we have to check the state of the power
button in firmware, and do not assert PMIC_PWRON during the shutdown
sequence to prevent the AP from restarting.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BRANCH=none
BUG=none
TEST=with the next CL, on Ryu, do a long power button key press, and see
the AP powering off and not restarting.
Change-Id: I03f703b4ff6d86edea150dfa32f60d30f1ddffd9
Reviewed-on: https://chromium-review.googlesource.com/207381
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Tested-by: Vic Yang <victoryang@chromium.org>
Commit-Queue: Vic Yang <victoryang@chromium.org>
a36a871d12