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If set_cc() is called, our toggle interrupt may still be active. Since alert() is called from the pdcmd task and set_cc() is called from the pd tasks, an unwanted interrupt may fire and override our desired CC settings. BUG=chrome-os-partner:54786 BRANCH=None TEST=Manual on gru. Rapidly attach + detach DP dongle, verify we don't get stuck in SNK_DISCONNECTED_DEBOUNCE. Change-Id: Ib60123c45d9a3a78243a3347377fb2190cbdf94b Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/356513 Commit-Ready: Shawn N <shawnn@chromium.org> Tested-by: Shawn N <shawnn@chromium.org> Reviewed-by: Joe Bauman <joe.bauman@fairchildsemi.com> Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit For instructions on building from source, refer to http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly