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The pulldown on diob5 is used to detect when servo is detached. It is unnecessary during deep sleep and when the EC console is active because servo detection is disabled. Having the pull-down enabled during these times can increase power consumption. This change disables the pulldown when the EC console and deep sleep are enabled. It also disables the diob5 input during deep sleep. BUG=chrome-os-partner:60020 BRANCH=none TEST=manual Disconnect servo Use the suzyq consoles to turn off the AP. Enable deep sleep. Measure the power consumed by vddiob and make sure it is around 0.3mW when the EC is in hibernate and when it is not. Change-Id: I8a653c28800cfbeeb1b4b8598d166846124c6b53 Signed-off-by: Mary Ruthven <mruthven@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/412940 Reviewed-by: Vadim Bendebury <vbendeb@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