Shawn Nematbakhsh 6e4848c200 task: Don't discard events on mutex contention
On mutex contention, call task_wait_event_mask(), which will wait for
a mutex event without clearing other pending events.

BUG=chrome-os-partner:47918,chromium:435611,chromium:435612
BRANCH=None
TEST=Manual on snoball. Verify samus can successfully negotiate PD power
contract when attached to snoball.

Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Change-Id: I85cd32f2670246da9e4787025390aba2c93f9c36
Reviewed-on: https://chromium-review.googlesource.com/314492
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Alec Berg <alecaberg@chromium.org>
2015-11-30 12:27:58 -08:00
2015-05-07 00:00:47 +00:00
2015-11-25 18:15:38 -08:00
2015-11-21 13:12:18 -08:00
2012-05-11 09:11:52 -07:00
2014-04-02 19:58:53 +00:00
2014-05-15 05:20:14 +00:00

For an overview of the Embedded Controller firmware, refer to

http://www.chromium.org/chromium-os/2014-firmware-summit
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