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a36a871d12
Some PMIC chip (e.g. TPS65913) doesn't support the 8-second long key press power-off. For this, we have to check the state of the power button in firmware, and do not assert PMIC_PWRON during the shutdown sequence to prevent the AP from restarting. Signed-off-by: Vincent Palatin <vpalatin@chromium.org> BRANCH=none BUG=none TEST=with the next CL, on Ryu, do a long power button key press, and see the AP powering off and not restarting. Change-Id: I03f703b4ff6d86edea150dfa32f60d30f1ddffd9 Reviewed-on: https://chromium-review.googlesource.com/207381 Reviewed-by: Alec Berg <alecaberg@chromium.org> Tested-by: Vic Yang <victoryang@chromium.org> Commit-Queue: Vic Yang <victoryang@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit