143 	struct at91_twi_dma dma;  member
213 	struct at91_twi_dma *dma = &dev->dma;  in at91_twi_dma_cleanup()  local
217 	if (dma->xfer_in_progress) {  in at91_twi_dma_cleanup()
218 		if (dma->direction == DMA_FROM_DEVICE)  in at91_twi_dma_cleanup()
219 			dmaengine_terminate_all(dma->chan_rx);  in at91_twi_dma_cleanup()
221 			dmaengine_terminate_all(dma->chan_tx);  in at91_twi_dma_cleanup()
222 		dma->xfer_in_progress = false;  in at91_twi_dma_cleanup()
224 	if (dma->buf_mapped) {  in at91_twi_dma_cleanup()
225 		dma_unmap_single(dev->dev, sg_dma_address(&dma->sg[0]),  in at91_twi_dma_cleanup()
226 				 dev->buf_len, dma->direction);  in at91_twi_dma_cleanup()
227 		dma->buf_mapped = false;  in at91_twi_dma_cleanup()
255 	dma_unmap_single(dev->dev, sg_dma_address(&dev->dma.sg[0]),  in at91_twi_write_data_dma_callback()
274 	struct at91_twi_dma *dma = &dev->dma;  in at91_twi_write_data_dma()  local
275 	struct dma_chan *chan_tx = dma->chan_tx;  in at91_twi_write_data_dma()
281 	dma->direction = DMA_TO_DEVICE;  in at91_twi_write_data_dma()
290 	dma->buf_mapped = true;  in at91_twi_write_data_dma()
302 			sg = &dma->sg[sg_len++];  in at91_twi_write_data_dma()
309 			sg = &dma->sg[sg_len++];  in at91_twi_write_data_dma()
323 		sg_dma_len(&dma->sg[0]) = dev->buf_len;  in at91_twi_write_data_dma()
324 		sg_dma_address(&dma->sg[0]) = dma_addr;  in at91_twi_write_data_dma()
327 	txdesc = dmaengine_prep_slave_sg(chan_tx, dma->sg, sg_len,  in at91_twi_write_data_dma()
338 	dma->xfer_in_progress = true;  in at91_twi_write_data_dma()
397 	dma_unmap_single(dev->dev, sg_dma_address(&dev->dma.sg[0]),  in at91_twi_read_data_dma_callback()
413 	struct at91_twi_dma *dma = &dev->dma;  in at91_twi_read_data_dma()  local
414 	struct dma_chan *chan_rx = dma->chan_rx;  in at91_twi_read_data_dma()
418 	dma->direction = DMA_FROM_DEVICE;  in at91_twi_read_data_dma()
427 	dma->buf_mapped = true;  in at91_twi_read_data_dma()
443 	sg_dma_len(&dma->sg[0]) = buf_len;  in at91_twi_read_data_dma()
444 	sg_dma_address(&dma->sg[0]) = dma_addr;  in at91_twi_read_data_dma()
446 	rxdesc = dmaengine_prep_slave_sg(chan_rx, dma->sg, 1, DMA_DEV_TO_MEM,  in at91_twi_read_data_dma()
456 	dma->xfer_in_progress = true;  in at91_twi_read_data_dma()
458 	dma_async_issue_pending(dma->chan_rx);  in at91_twi_read_data_dma()
899 	struct at91_twi_dma *dma = &dev->dma;  in at91_twi_configure_dma()  local
929 	dma->chan_tx = dma_request_slave_channel_reason(dev->dev, "tx");  in at91_twi_configure_dma()
930 	if (IS_ERR(dma->chan_tx)) {  in at91_twi_configure_dma()
931 		ret = PTR_ERR(dma->chan_tx);  in at91_twi_configure_dma()
932 		dma->chan_tx = NULL;  in at91_twi_configure_dma()
936 	dma->chan_rx = dma_request_slave_channel_reason(dev->dev, "rx");  in at91_twi_configure_dma()
937 	if (IS_ERR(dma->chan_rx)) {  in at91_twi_configure_dma()
938 		ret = PTR_ERR(dma->chan_rx);  in at91_twi_configure_dma()
939 		dma->chan_rx = NULL;  in at91_twi_configure_dma()
944 	if (dmaengine_slave_config(dma->chan_tx, &slave_config)) {  in at91_twi_configure_dma()
951 	if (dmaengine_slave_config(dma->chan_rx, &slave_config)) {  in at91_twi_configure_dma()
957 	sg_init_table(dma->sg, 2);  in at91_twi_configure_dma()
958 	dma->buf_mapped = false;  in at91_twi_configure_dma()
959 	dma->xfer_in_progress = false;  in at91_twi_configure_dma()
963 		 dma_chan_name(dma->chan_tx), dma_chan_name(dma->chan_rx));  in at91_twi_configure_dma()
970 	if (dma->chan_rx)  in at91_twi_configure_dma()
971 		dma_release_channel(dma->chan_rx);  in at91_twi_configure_dma()
972 	if (dma->chan_tx)  in at91_twi_configure_dma()
973 		dma_release_channel(dma->chan_tx);  in at91_twi_configure_dma()