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When sourcing current on the type-C port, set the OCP limit on the VBUS load switch according to current dynamic capability. (3.0A when only one port is a power source, 1.5A else) Signed-off-by: Vincent Palatin <vpalatin@chromium.org> BRANCH=gru BUG=chrome-os-partner:56110 TEST=manual: connect Caroline to Kevin with Twinkie in between, ask Caroline to sink current through the UI. without anything else connected on Kevin, see 3A flowing when measuring with Twinkie ('tw vbus'), plug a dangling C-to-A receptacle dongle on the other Kevin port and see 1.5A flowing through Twinkie. Force the input current limit on Caroline to 3.0A and see Kevin cutting VBUS. Change-Id: Ib879b1ed720b20aa702c5f3643948ba0575d1193 Reviewed-on: https://chromium-review.googlesource.com/403869 Commit-Ready: Vincent Palatin <vpalatin@chromium.org> Tested-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Shawn N <shawnn@chromium.org>