148 	struct at91_twi_dma dma;  member
244 	struct at91_twi_dma *dma = &dev->dma;  in at91_twi_dma_cleanup()  local
248 	if (dma->xfer_in_progress) {  in at91_twi_dma_cleanup()
249 		if (dma->direction == DMA_FROM_DEVICE)  in at91_twi_dma_cleanup()
250 			dmaengine_terminate_all(dma->chan_rx);  in at91_twi_dma_cleanup()
252 			dmaengine_terminate_all(dma->chan_tx);  in at91_twi_dma_cleanup()
253 		dma->xfer_in_progress = false;  in at91_twi_dma_cleanup()
255 	if (dma->buf_mapped) {  in at91_twi_dma_cleanup()
256 		dma_unmap_single(dev->dev, sg_dma_address(&dma->sg[0]),  in at91_twi_dma_cleanup()
257 				 dev->buf_len, dma->direction);  in at91_twi_dma_cleanup()
258 		dma->buf_mapped = false;  in at91_twi_dma_cleanup()
288 	dma_unmap_single(dev->dev, sg_dma_address(&dev->dma.sg[0]),  in at91_twi_write_data_dma_callback()
307 	struct at91_twi_dma *dma = &dev->dma;  in at91_twi_write_data_dma()  local
308 	struct dma_chan *chan_tx = dma->chan_tx;  in at91_twi_write_data_dma()
314 	dma->direction = DMA_TO_DEVICE;  in at91_twi_write_data_dma()
323 	dma->buf_mapped = true;  in at91_twi_write_data_dma()
335 			sg = &dma->sg[sg_len++];  in at91_twi_write_data_dma()
342 			sg = &dma->sg[sg_len++];  in at91_twi_write_data_dma()
356 		sg_dma_len(&dma->sg[0]) = dev->buf_len;  in at91_twi_write_data_dma()
357 		sg_dma_address(&dma->sg[0]) = dma_addr;  in at91_twi_write_data_dma()
360 	txdesc = dmaengine_prep_slave_sg(chan_tx, dma->sg, sg_len,  in at91_twi_write_data_dma()
371 	dma->xfer_in_progress = true;  in at91_twi_write_data_dma()
430 	dma_unmap_single(dev->dev, sg_dma_address(&dev->dma.sg[0]),  in at91_twi_read_data_dma_callback()
446 	struct at91_twi_dma *dma = &dev->dma;  in at91_twi_read_data_dma()  local
447 	struct dma_chan *chan_rx = dma->chan_rx;  in at91_twi_read_data_dma()
451 	dma->direction = DMA_FROM_DEVICE;  in at91_twi_read_data_dma()
460 	dma->buf_mapped = true;  in at91_twi_read_data_dma()
476 	sg_dma_len(&dma->sg[0]) = buf_len;  in at91_twi_read_data_dma()
477 	sg_dma_address(&dma->sg[0]) = dma_addr;  in at91_twi_read_data_dma()
479 	rxdesc = dmaengine_prep_slave_sg(chan_rx, dma->sg, 1, DMA_DEV_TO_MEM,  in at91_twi_read_data_dma()
489 	dma->xfer_in_progress = true;  in at91_twi_read_data_dma()
491 	dma_async_issue_pending(dma->chan_rx);  in at91_twi_read_data_dma()
970 	struct at91_twi_dma *dma = &dev->dma;  in at91_twi_configure_dma()  local
1000 	dma->chan_tx = dma_request_slave_channel_reason(dev->dev, "tx");  in at91_twi_configure_dma()
1001 	if (IS_ERR(dma->chan_tx)) {  in at91_twi_configure_dma()
1002 		ret = PTR_ERR(dma->chan_tx);  in at91_twi_configure_dma()
1003 		dma->chan_tx = NULL;  in at91_twi_configure_dma()
1007 	dma->chan_rx = dma_request_slave_channel_reason(dev->dev, "rx");  in at91_twi_configure_dma()
1008 	if (IS_ERR(dma->chan_rx)) {  in at91_twi_configure_dma()
1009 		ret = PTR_ERR(dma->chan_rx);  in at91_twi_configure_dma()
1010 		dma->chan_rx = NULL;  in at91_twi_configure_dma()
1015 	if (dmaengine_slave_config(dma->chan_tx, &slave_config)) {  in at91_twi_configure_dma()
1022 	if (dmaengine_slave_config(dma->chan_rx, &slave_config)) {  in at91_twi_configure_dma()
1028 	sg_init_table(dma->sg, 2);  in at91_twi_configure_dma()
1029 	dma->buf_mapped = false;  in at91_twi_configure_dma()
1030 	dma->xfer_in_progress = false;  in at91_twi_configure_dma()
1034 		 dma_chan_name(dma->chan_tx), dma_chan_name(dma->chan_rx));  in at91_twi_configure_dma()
1041 	if (dma->chan_rx)  in at91_twi_configure_dma()
1042 		dma_release_channel(dma->chan_rx);  in at91_twi_configure_dma()
1043 	if (dma->chan_tx)  in at91_twi_configure_dma()
1044 		dma_release_channel(dma->chan_tx);  in at91_twi_configure_dma()