190 			   struct spi_device *spi, struct spi_transfer *xfer)  in dw_spi_can_dma()  argument
194 	return xfer->len > dws->fifo_len;  in dw_spi_can_dma()
236 				   struct spi_transfer *xfer)  in dw_spi_dma_wait_tx_done()  argument
247 		spi_delay_exec(&delay, xfer);  in dw_spi_dma_wait_tx_done()
416 static int dw_spi_dma_setup(struct dw_spi *dws, struct spi_transfer *xfer)  in dw_spi_dma_setup()  argument
421 	if (!xfer->tx_buf)  in dw_spi_dma_setup()
429 	if (xfer->rx_buf) {  in dw_spi_dma_setup()
437 	if (xfer->rx_buf)  in dw_spi_dma_setup()
443 	if (xfer->rx_buf)  in dw_spi_dma_setup()
455 				   struct spi_transfer *xfer)  in dw_spi_dma_transfer_all()  argument
460 	ret = dw_spi_dma_submit_tx(dws, xfer->tx_sg.sgl, xfer->tx_sg.nents);  in dw_spi_dma_transfer_all()
465 	if (xfer->rx_buf) {  in dw_spi_dma_transfer_all()
466 		ret = dw_spi_dma_submit_rx(dws, xfer->rx_sg.sgl,  in dw_spi_dma_transfer_all()
467 					   xfer->rx_sg.nents);  in dw_spi_dma_transfer_all()
477 	ret = dw_spi_dma_wait(dws, xfer->len, xfer->effective_speed_hz);  in dw_spi_dma_transfer_all()
518 				   struct spi_transfer *xfer)  in dw_spi_dma_transfer_one()  argument
528 	for (base = 0, len = 0; base < xfer->len; base += len) {  in dw_spi_dma_transfer_one()
531 			tx_sg = !tx_sg ? &xfer->tx_sg.sgl[0] : sg_next(tx_sg);  in dw_spi_dma_transfer_one()
538 			rx_sg = !rx_sg ? &xfer->rx_sg.sgl[0] : sg_next(rx_sg);  in dw_spi_dma_transfer_one()
569 		ret = dw_spi_dma_wait(dws, len, xfer->effective_speed_hz);  in dw_spi_dma_transfer_one()
586 static int dw_spi_dma_transfer(struct dw_spi *dws, struct spi_transfer *xfer)  in dw_spi_dma_transfer()  argument
591 	nents = max(xfer->tx_sg.nents, xfer->rx_sg.nents);  in dw_spi_dma_transfer()
600 	if (!dws->dma_sg_burst || !xfer->rx_buf || nents <= dws->dma_sg_burst)  in dw_spi_dma_transfer()
601 		ret = dw_spi_dma_transfer_all(dws, xfer);  in dw_spi_dma_transfer()
603 		ret = dw_spi_dma_transfer_one(dws, xfer);  in dw_spi_dma_transfer()
608 		ret = dw_spi_dma_wait_tx_done(dws, xfer);  in dw_spi_dma_transfer()
613 	if (xfer->rx_buf && dws->master->cur_msg->status == -EINPROGRESS)  in dw_spi_dma_transfer()