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Occasionally, POWER_STATUS.sourcing_vbus takes a while to clear after writing to MAX_BUCK_BOOST_OP register. This causes vbus to turn back on while disconnecting the sink. Overcome this issue by writing into MAX_BUCK_BOOST_OP during frs while sourcing vbu, instead of always into the register whenever POWER_STATUS.sourcing_vbus is set. Signed-off-by: Badhri Jagan Sridharan <badhri@google.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20201029063138.1429760-7-badhri@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>