701 static void ep93xx_pata_dma_start(struct ata_queued_cmd *qc)  in ep93xx_pata_dma_start()  argument
704 	struct ep93xx_pata_data *drv_data = qc->ap->host->private_data;  in ep93xx_pata_dma_start()
706 	struct ata_device *adev = qc->dev;  in ep93xx_pata_dma_start()
707 	u32 v = qc->dma_dir == DMA_TO_DEVICE ? IDEUDMAOP_RWOP : 0;  in ep93xx_pata_dma_start()
708 	struct dma_chan *channel = qc->dma_dir == DMA_TO_DEVICE  in ep93xx_pata_dma_start()
711 	txd = dmaengine_prep_slave_sg(channel, qc->sg, qc->n_elem, qc->dma_dir,  in ep93xx_pata_dma_start()
714 		dev_err(qc->ap->dev, "failed to prepare slave for sg dma\n");  in ep93xx_pata_dma_start()
721 		dev_err(qc->ap->dev, "failed to submit dma transfer\n");  in ep93xx_pata_dma_start()
742 static void ep93xx_pata_dma_stop(struct ata_queued_cmd *qc)  in ep93xx_pata_dma_stop()  argument
744 	struct ep93xx_pata_data *drv_data = qc->ap->host->private_data;  in ep93xx_pata_dma_stop()
760 		qc->dev->pio_mode - XFER_PIO_0);  in ep93xx_pata_dma_stop()
762 	ata_sff_dma_pause(qc->ap);  in ep93xx_pata_dma_stop()
765 static void ep93xx_pata_dma_setup(struct ata_queued_cmd *qc)  in ep93xx_pata_dma_setup()  argument
767 	qc->ap->ops->sff_exec_command(qc->ap, &qc->tf);  in ep93xx_pata_dma_setup()
840 static void ep93xx_pata_drain_fifo(struct ata_queued_cmd *qc)  in ep93xx_pata_drain_fifo()  argument
847 	if (qc == NULL || qc->dma_dir == DMA_TO_DEVICE)  in ep93xx_pata_drain_fifo()
850 	ap = qc->ap;  in ep93xx_pata_drain_fifo()