drivers/spi/spi-dw-dma.c

54 	ret = dma_get_slave_caps(dws->txchan, &caps);
80 	ret = dma_get_slave_caps(dws->txchan, &tx);
138 	dws->txchan = dma_request_channel(mask, dw_spi_dma_chan_filter, tx);
139 	if (!dws->txchan)
143 	dws->host->dma_tx = dws->txchan;
158 	dma_release_channel(dws->txchan);
159 	dws->txchan = NULL;
179 	dws->txchan = dma_request_chan(dev, "tx");
180 	if (IS_ERR(dws->txchan)) {
181 		ret = PTR_ERR(dws->txchan);
182 		dws->txchan = NULL;
187 	dws->host->dma_tx = dws->txchan;
200 	dma_release_channel(dws->txchan);
201 	dws->txchan = NULL;
211 	if (dws->txchan) {
212 		dmaengine_terminate_sync(dws->txchan);
213 		dma_release_channel(dws->txchan);
336 	return dmaengine_slave_config(dws->txchan, &txconf);
346 	txdesc = dmaengine_prep_slave_sg(dws->txchan, sgl, nents,
358 		dmaengine_terminate_sync(dws->txchan);
527 	dma_async_issue_pending(dws->txchan);
613 		dma_async_issue_pending(dws->txchan);
674 		dmaengine_terminate_sync(dws->txchan);