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We normally do not charge from non-dedicated chargers. The process of determining whether a charger is dedicated or not involves PD protocol communication, so it can take some time to reach a determination. If no battery is attached, the charger is likely our only source of power, so don't cut it off. BUG=chrome-os-partner:41258 TEST=Attach donette to glados system with no battery, verify that glados boots to EC console and doesn't reset or panic. BRANCH=None Change-Id: I7c9cfcbd37b37ef16010cf1f246d8fddba6f6283 Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/277074 Reviewed-by: Alec Berg <alecaberg@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit