391 	struct omap2_mcspi_dma *mcspi_dma = &mcspi->dma_channels[spi->chip_select];  in omap2_mcspi_rx_callback()  local
396 	complete(&mcspi_dma->dma_rx_completion);  in omap2_mcspi_rx_callback()
403 	struct omap2_mcspi_dma *mcspi_dma = &mcspi->dma_channels[spi->chip_select];  in omap2_mcspi_tx_callback()  local
408 	complete(&mcspi_dma->dma_tx_completion);  in omap2_mcspi_tx_callback()
416 	struct omap2_mcspi_dma  *mcspi_dma;  in omap2_mcspi_tx_dma()  local
420 	mcspi_dma = &mcspi->dma_channels[spi->chip_select];  in omap2_mcspi_tx_dma()
423 	if (mcspi_dma->dma_tx) {  in omap2_mcspi_tx_dma()
427 		dmaengine_slave_config(mcspi_dma->dma_tx, &cfg);  in omap2_mcspi_tx_dma()
433 		tx = dmaengine_prep_slave_sg(mcspi_dma->dma_tx, &sg, 1,  in omap2_mcspi_tx_dma()
443 	dma_async_issue_pending(mcspi_dma->dma_tx);  in omap2_mcspi_tx_dma()
454 	struct omap2_mcspi_dma  *mcspi_dma;  in omap2_mcspi_rx_dma()  local
461 	mcspi_dma = &mcspi->dma_channels[spi->chip_select];  in omap2_mcspi_rx_dma()
478 	if (mcspi_dma->dma_rx) {  in omap2_mcspi_rx_dma()
482 		dmaengine_slave_config(mcspi_dma->dma_rx, &cfg);  in omap2_mcspi_rx_dma()
491 		tx = dmaengine_prep_slave_sg(mcspi_dma->dma_rx, &sg, 1,  in omap2_mcspi_rx_dma()
503 	dma_async_issue_pending(mcspi_dma->dma_rx);  in omap2_mcspi_rx_dma()
506 	wait_for_completion(&mcspi_dma->dma_rx_completion);  in omap2_mcspi_rx_dma()
563 	struct omap2_mcspi_dma  *mcspi_dma;  in omap2_mcspi_txrx_dma()  local
577 	mcspi_dma = &mcspi->dma_channels[spi->chip_select];  in omap2_mcspi_txrx_dma()
620 		wait_for_completion(&mcspi_dma->dma_tx_completion);  in omap2_mcspi_txrx_dma()
965 	struct omap2_mcspi_dma	*mcspi_dma;  in omap2_mcspi_request_dma()  local
970 	mcspi_dma = mcspi->dma_channels + spi->chip_select;  in omap2_mcspi_request_dma()
972 	init_completion(&mcspi_dma->dma_rx_completion);  in omap2_mcspi_request_dma()
973 	init_completion(&mcspi_dma->dma_tx_completion);  in omap2_mcspi_request_dma()
977 	sig = mcspi_dma->dma_rx_sync_dev;  in omap2_mcspi_request_dma()
979 	mcspi_dma->dma_rx =  in omap2_mcspi_request_dma()
982 						 mcspi_dma->dma_rx_ch_name);  in omap2_mcspi_request_dma()
983 	if (!mcspi_dma->dma_rx)  in omap2_mcspi_request_dma()
986 	sig = mcspi_dma->dma_tx_sync_dev;  in omap2_mcspi_request_dma()
987 	mcspi_dma->dma_tx =  in omap2_mcspi_request_dma()
990 						 mcspi_dma->dma_tx_ch_name);  in omap2_mcspi_request_dma()
992 	if (!mcspi_dma->dma_tx) {  in omap2_mcspi_request_dma()
993 		dma_release_channel(mcspi_dma->dma_rx);  in omap2_mcspi_request_dma()
994 		mcspi_dma->dma_rx = NULL;  in omap2_mcspi_request_dma()
1010 	struct omap2_mcspi_dma	*mcspi_dma;  in omap2_mcspi_setup()  local
1013 	mcspi_dma = &mcspi->dma_channels[spi->chip_select];  in omap2_mcspi_setup()
1039 	if (!mcspi_dma->dma_rx || !mcspi_dma->dma_tx) {  in omap2_mcspi_setup()
1059 	struct omap2_mcspi_dma	*mcspi_dma;  in omap2_mcspi_cleanup()  local
1073 		mcspi_dma = &mcspi->dma_channels[spi->chip_select];  in omap2_mcspi_cleanup()
1075 		if (mcspi_dma->dma_rx) {  in omap2_mcspi_cleanup()
1076 			dma_release_channel(mcspi_dma->dma_rx);  in omap2_mcspi_cleanup()
1077 			mcspi_dma->dma_rx = NULL;  in omap2_mcspi_cleanup()
1079 		if (mcspi_dma->dma_tx) {  in omap2_mcspi_cleanup()
1080 			dma_release_channel(mcspi_dma->dma_tx);  in omap2_mcspi_cleanup()
1081 			mcspi_dma->dma_tx = NULL;  in omap2_mcspi_cleanup()
1101 	struct omap2_mcspi_dma		*mcspi_dma;  in omap2_mcspi_work_one()  local
1109 	mcspi_dma = mcspi->dma_channels + spi->chip_select;  in omap2_mcspi_work_one()
1167 		if ((mcspi_dma->dma_rx && mcspi_dma->dma_tx) &&  in omap2_mcspi_work_one()
1178 		if ((mcspi_dma->dma_rx && mcspi_dma->dma_tx) &&  in omap2_mcspi_work_one()
1252 	struct omap2_mcspi_dma	*mcspi_dma;  in omap2_mcspi_transfer_one()  local
1258 	mcspi_dma = mcspi->dma_channels + spi->chip_select;  in omap2_mcspi_transfer_one()
1273 	if (mcspi_dma->dma_tx && tx_buf != NULL) {  in omap2_mcspi_transfer_one()
1282 	if (mcspi_dma->dma_rx && rx_buf != NULL) {  in omap2_mcspi_transfer_one()