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d862dd0598
Modified TCPC layer to utilize the Power_Status and Power_Status_Mask registers. VBUS status is stored in Power_Status and when a change is detected, it's communicated to the TCPM via the ALERT# line. BUG=chrome-os-partner:43440 BRANCH=none TEST=Tested the feature on Glados and Oak connecting to both Ziger and Samus. Verfied that VBUS status is communicated via the TCPCI and that PD contracts are established without using the VBUS_WAKE GPIO lines on Glados and Oak. Change-Id: Ie5aa32eecc887f3cb00880a285f1e710b7064384 Signed-off-by: Scott Collyer <scollyer@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/289931 Reviewed-by: Rong Chang <rongchang@chromium.org> Reviewed-by: Alec Berg <alecaberg@chromium.org> Commit-Queue: Rong Chang <rongchang@chromium.org> Tested-by: Rong Chang <rongchang@chromium.org>