sata_mv: optimize use of mv_edma_cfg
Try and avoid unnecessary reconfiguration of the EDMA config register on every single non-EDMA I/O operation, by moving the call to mv_edma_cfg() into mv_stop_edma(). It must then also be invoked from mv_hardreset() and from mv_port_start(). Signed-off-by: NMark Lord <mlord@pobox.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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