Lines Matching defs:dma
12 #include <linux/dma-mapping.h>
242 * @dma: DMA client state.
323 struct atmel_mci_dma dma;
945 dma_unmap_sg(host->dma.chan->device->dev,
993 * completion callback" rule of the dma engine
1125 chan = host->dma.chan;
1156 host->dma.data_desc = desc;
1189 struct dma_async_tx_descriptor *desc = host->dma.data_desc;
2356 host->dma.chan = dma_request_chan(&host->pdev->dev, "rxtx");
2358 if (PTR_ERR(host->dma.chan) == -ENODEV) {
2368 host->dma.chan = dma_request_channel(mask, pdata->dma_filter,
2370 if (!host->dma.chan)
2371 host->dma.chan = ERR_PTR(-ENODEV);
2374 if (IS_ERR(host->dma.chan))
2375 return PTR_ERR(host->dma.chan);
2378 dma_chan_name(host->dma.chan));
2597 if (!IS_ERR(host->dma.chan))
2598 dma_release_channel(host->dma.chan);
2625 if (!IS_ERR(host->dma.chan))
2626 dma_release_channel(host->dma.chan);