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When using VBUS_DETECT_TCPC the charger code relied on the TCPC alert to initialize the VBUS supply, but that happens too late in board startup sequence to allow an initally plugged in USB-C power supply to be chosen as the active charging port. We can and should initialize the the supplier sooner as to prevent the charge_manager_is_seeded() check from failing thus preventing the board from choosing a charging port. BRANCH=none BUG=b:77458917 TEST=PS8751 on yorp will negotiate 20V over USB-C (which was prevent by the charge_manager not being seeded) Change-Id: I6f612c508932a90ece0036ce8310a20de02d8467 Signed-off-by: Jett Rink <jettrink@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/994707 Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com> Tested-by: Divya S Sasidharan <divya.s.sasidharan@intel.com> Reviewed-by: Divya S Sasidharan <divya.s.sasidharan@intel.com> Reviewed-by: Aseda Aboagye <aaboagye@chromium.org> Reviewed-by: Aaron Durbin <adurbin@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