mcasp_get_slot_width
slot_width = mcasp_get_slot_width(mcasp, substream->stream);
slot_width = mcasp_get_slot_width(rd->mcasp, rd->stream);
slot_width = mcasp_get_slot_width(rd->mcasp, rd->stream);
slot_width = mcasp_get_slot_width(rd->mcasp, rd->stream);
} else if (mcasp_get_slot_width(mcasp, substream->stream)) {
slot_width = mcasp_get_slot_width(mcasp, stream);