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7b1a0dc795
This fixes a bug in the PD transmit retry mechanism. In the retry mechanism, we were assuming that only a pd rx interrupt will wake up this event. But, there are other events that could potentially wake us up, so we need to check to make sure that pd rx started when we first wake up. BUG=chrome-os-partner:30135 BRANCH=none TEST=load onto samus and zinger. run "pd 0 flash rw_hash" a bunch of times manually from the console. Observe that we nearly always fail the first receive, but succeed on next try, which prevents us from dropping the negotiation. Change-Id: I5f7261176c151c3185d76aa374b9b83ac9df9a7d Signed-off-by: Alec Berg <alecaberg@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/213369 Reviewed-by: Todd Broch <tbroch@chromium.org> Tested-by: Todd Broch <tbroch@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit