424 		struct dma_async_tx_descriptor *tx;  in omap2_mcspi_tx_dma()  local
433 		tx = dmaengine_prep_slave_sg(mcspi_dma->dma_tx, &sg, 1,  in omap2_mcspi_tx_dma()
435 		if (tx) {  in omap2_mcspi_tx_dma()
436 			tx->callback = omap2_mcspi_tx_callback;  in omap2_mcspi_tx_dma()
437 			tx->callback_param = spi;  in omap2_mcspi_tx_dma()
438 			dmaengine_submit(tx);  in omap2_mcspi_tx_dma()
479 		struct dma_async_tx_descriptor *tx;  in omap2_mcspi_rx_dma()  local
491 		tx = dmaengine_prep_slave_sg(mcspi_dma->dma_rx, &sg, 1,  in omap2_mcspi_rx_dma()
494 		if (tx) {  in omap2_mcspi_rx_dma()
495 			tx->callback = omap2_mcspi_rx_callback;  in omap2_mcspi_rx_dma()
496 			tx->callback_param = spi;  in omap2_mcspi_rx_dma()
497 			dmaengine_submit(tx);  in omap2_mcspi_rx_dma()
567 	const u8		*tx;  in omap2_mcspi_txrx_dma()  local
611 	tx = xfer->tx_buf;  in omap2_mcspi_txrx_dma()
613 	if (tx != NULL)  in omap2_mcspi_txrx_dma()
619 	if (tx != NULL) {  in omap2_mcspi_txrx_dma()
689 		const u8	*tx;  in omap2_mcspi_txrx_pio()  local
692 		tx = xfer->tx_buf;  in omap2_mcspi_txrx_pio()
696 			if (tx != NULL) {  in omap2_mcspi_txrx_pio()
703 						word_len, *tx);  in omap2_mcspi_txrx_pio()
704 				writel_relaxed(*tx++, tx_reg);  in omap2_mcspi_txrx_pio()
713 				if (c == 1 && tx == NULL &&  in omap2_mcspi_txrx_pio()
726 				} else if (c == 0 && tx == NULL) {  in omap2_mcspi_txrx_pio()
737 		const u16	*tx;  in omap2_mcspi_txrx_pio()  local
740 		tx = xfer->tx_buf;  in omap2_mcspi_txrx_pio()
743 			if (tx != NULL) {  in omap2_mcspi_txrx_pio()
750 						word_len, *tx);  in omap2_mcspi_txrx_pio()
751 				writel_relaxed(*tx++, tx_reg);  in omap2_mcspi_txrx_pio()
760 				if (c == 2 && tx == NULL &&  in omap2_mcspi_txrx_pio()
773 				} else if (c == 0 && tx == NULL) {  in omap2_mcspi_txrx_pio()
784 		const u32	*tx;  in omap2_mcspi_txrx_pio()  local
787 		tx = xfer->tx_buf;  in omap2_mcspi_txrx_pio()
790 			if (tx != NULL) {  in omap2_mcspi_txrx_pio()
797 						word_len, *tx);  in omap2_mcspi_txrx_pio()
798 				writel_relaxed(*tx++, tx_reg);  in omap2_mcspi_txrx_pio()
807 				if (c == 4 && tx == NULL &&  in omap2_mcspi_txrx_pio()
820 				} else if (c == 0 && tx == NULL) {  in omap2_mcspi_txrx_pio()