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9de97e8754
Currently we set the input current limit to its maximum when the system is unlocked, so that we can boot the system with a powerful charger when the battery is absent. However, with a low power charger, we risk browning out the charger. If the battery is present, reduce the input current limit so that low power chargers work in this case. BRANCH=None BUG=None TEST=On Ryu, reboot EC when the a low power charger is used. Without this change, the charger browns out right after the reboot. With this fix, the problem doesn't happen anymore. Change-Id: I9d491cbe45e77f864198c97a47624918e6c272db Signed-off-by: Vic Yang <victoryang@google.com> Reviewed-on: https://chromium-review.googlesource.com/248442 Reviewed-by: Alec Berg <alecaberg@chromium.org> Commit-Queue: Vic Yang <victoryang@chromium.org> Tested-by: Vic Yang <victoryang@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit