Files
OpenCellular/driver
Shawn Nematbakhsh 6598f08930 tcpm: fusb302: Always take hard reset actions when M_HARDSENT received
After sending a hard reset through Control3 SEND_HARD_RESET, packet Tx
will fail until PD_RESET is triggered. Therefore, always do such a reset
when we see an M_HARDSENT interrupt. Previously, it may have been possible
to skip our reset depending on prior Tx packet status, leaving the TCPC
in a wedged state.

BUG=chrome-os-partner:58232
TEST=Manual on kevin, spam 'pd 0 hard' for 10 hours with zinger attached,
verify TCPC is still responsive and negotiating to 20V.
BRANCH=gru.

Change-Id: I42db792a5f51218c58235dc38c2d49795b54986e
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/393769
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
(cherry picked from commit 811534541c263244d2fe9bdf9465de196e1575da)
Reviewed-on: https://chromium-review.googlesource.com/415486
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>
2016-12-01 19:58:49 -08:00
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