315 		if (t->rx_buf != NULL && t->tx_buf != NULL)  in omap2_mcspi_set_fifo()
333 		if (t->tx_buf != NULL) {  in omap2_mcspi_set_fifo()
349 	if (t->tx_buf != NULL)  in omap2_mcspi_set_fifo()
611 	tx = xfer->tx_buf;  in omap2_mcspi_txrx_dma()
692 		tx = xfer->tx_buf;  in omap2_mcspi_txrx_pio()
740 		tx = xfer->tx_buf;  in omap2_mcspi_txrx_pio()
787 		tx = xfer->tx_buf;  in omap2_mcspi_txrx_pio()
1151 	if (t->tx_buf == NULL)  in omap2_mcspi_work_one()
1156 	if (cd && cd->turbo_mode && t->tx_buf == NULL) {  in omap2_mcspi_work_one()
1174 		if (t->tx_buf == NULL)  in omap2_mcspi_work_one()
1253 	const void	*tx_buf = t->tx_buf;  in omap2_mcspi_transfer_one()  local
1260 	if ((len && !(rx_buf || tx_buf))) {  in omap2_mcspi_transfer_one()
1264 				tx_buf ? "tx" : "",  in omap2_mcspi_transfer_one()
1273 	if (mcspi_dma->dma_tx && tx_buf != NULL) {  in omap2_mcspi_transfer_one()
1274 		t->tx_dma = dma_map_single(mcspi->dev, (void *) tx_buf,  in omap2_mcspi_transfer_one()
1288 			if (tx_buf != NULL)  in omap2_mcspi_transfer_one()