The command ETP_RESOLUTION_QUERY also contains the bus information.
It is better to fetch it once, while we are querying for device
information.
Signed-off-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: NKT Liao <kt.liao@emc.com.tw>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>