Some errors still show up, but the dock works, both drives can be
accessed at the same time

The chip maker and designation is unknown - possibly jmicron JMB350?
Signed-off-by: NPavel Herrmann <morpheus.ibis@gmail.com>
Acked-by: NTejun Heo <tj@kernel.org>
Signed-off-by: NJeff Garzik <jgarzik@pobox.com>