403 		struct dma_async_tx_descriptor *tx;  in omap2_mcspi_tx_dma()  local
412 		tx = dmaengine_prep_slave_sg(mcspi_dma->dma_tx, &sg, 1,  in omap2_mcspi_tx_dma()
414 		if (tx) {  in omap2_mcspi_tx_dma()
415 			tx->callback = omap2_mcspi_tx_callback;  in omap2_mcspi_tx_dma()
416 			tx->callback_param = spi;  in omap2_mcspi_tx_dma()
417 			dmaengine_submit(tx);  in omap2_mcspi_tx_dma()
458 		struct dma_async_tx_descriptor *tx;  in omap2_mcspi_rx_dma()  local
470 		tx = dmaengine_prep_slave_sg(mcspi_dma->dma_rx, &sg, 1,  in omap2_mcspi_rx_dma()
473 		if (tx) {  in omap2_mcspi_rx_dma()
474 			tx->callback = omap2_mcspi_rx_callback;  in omap2_mcspi_rx_dma()
475 			tx->callback_param = spi;  in omap2_mcspi_rx_dma()
476 			dmaengine_submit(tx);  in omap2_mcspi_rx_dma()
546 	const u8		*tx;  in omap2_mcspi_txrx_dma()  local
590 	tx = xfer->tx_buf;  in omap2_mcspi_txrx_dma()
592 	if (tx != NULL)  in omap2_mcspi_txrx_dma()
598 	if (tx != NULL) {  in omap2_mcspi_txrx_dma()
668 		const u8	*tx;  in omap2_mcspi_txrx_pio()  local
671 		tx = xfer->tx_buf;  in omap2_mcspi_txrx_pio()
675 			if (tx != NULL) {  in omap2_mcspi_txrx_pio()
682 						word_len, *tx);  in omap2_mcspi_txrx_pio()
683 				writel_relaxed(*tx++, tx_reg);  in omap2_mcspi_txrx_pio()
692 				if (c == 1 && tx == NULL &&  in omap2_mcspi_txrx_pio()
705 				} else if (c == 0 && tx == NULL) {  in omap2_mcspi_txrx_pio()
716 		const u16	*tx;  in omap2_mcspi_txrx_pio()  local
719 		tx = xfer->tx_buf;  in omap2_mcspi_txrx_pio()
722 			if (tx != NULL) {  in omap2_mcspi_txrx_pio()
729 						word_len, *tx);  in omap2_mcspi_txrx_pio()
730 				writel_relaxed(*tx++, tx_reg);  in omap2_mcspi_txrx_pio()
739 				if (c == 2 && tx == NULL &&  in omap2_mcspi_txrx_pio()
752 				} else if (c == 0 && tx == NULL) {  in omap2_mcspi_txrx_pio()
763 		const u32	*tx;  in omap2_mcspi_txrx_pio()  local
766 		tx = xfer->tx_buf;  in omap2_mcspi_txrx_pio()
769 			if (tx != NULL) {  in omap2_mcspi_txrx_pio()
776 						word_len, *tx);  in omap2_mcspi_txrx_pio()
777 				writel_relaxed(*tx++, tx_reg);  in omap2_mcspi_txrx_pio()
786 				if (c == 4 && tx == NULL &&  in omap2_mcspi_txrx_pio()
799 				} else if (c == 0 && tx == NULL) {  in omap2_mcspi_txrx_pio()