If the device type is non-standard charger, it could be the user
plugging in the connector too slowly and TSU6721 BCD timer expired
before the connector is fully plugged in.
Extending TSU6721 BCD timer causes a big delay in Apple charger
detection, and breaks how we detect over-current. Let's do this by
a re-detection instead. If we see a different device type, just
update the device type we have. Otherwise, we reset TSU6721 to force a
re-detection.
BUG=chrome-os-partner:19765
TEST=Plug in a charger half way in. Wait for a second, plug it in all
the way. See device type changed after few seconds.
TEST=Plug in a charger half way in and leave it there. Only see
redetection once.
TEST=Plug in a charger all the way in. See correct device type.
TEST=Plug in an Apple charger. See correct device type within a second.
TEST=Plug in a Nexus 10 charger. See correct device type after 5
seconds.
BRANCH=spring
Change-Id: Ia7733972842e6040b545670df043058c55ae3c01
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58799
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
b93658ba02