mxs_dmaengine_prep_pio
desc = mxs_dmaengine_prep_pio(channel, pio, ARRAY_SIZE(pio),
return mxs_dmaengine_prep_pio(channel, pio, 2, DMA_TRANS_NONE,
desc = mxs_dmaengine_prep_pio(channel, pio, ARRAY_SIZE(pio),
desc = mxs_dmaengine_prep_pio(channel, pio, ARRAY_SIZE(pio),