sunxi/sun4i-csi/sun4i_dma.c

96 	dma_addr_t addr = csi->scratch.paddr;
100 		"No more available buffer, using the scratch buffer\n");
245 	 * We need a scratch buffer in case where we'll not have any
255 	csi->scratch.size = 0;
257 		csi->scratch.size += csi->fmt.plane_fmt[i].sizeimage;
259 	csi->scratch.vaddr = dma_alloc_coherent(csi->dev,
260 						csi->scratch.size,
261 						&csi->scratch.paddr,
263 	if (!csi->scratch.vaddr) {
264 		dev_err(csi->dev, "Failed to allocate scratch buffer\n");
336 	dma_free_coherent(csi->dev, csi->scratch.size, csi->scratch.vaddr,
337 			  csi->scratch.paddr);
364 	dma_free_coherent(csi->dev, csi->scratch.size, csi->scratch.vaddr,
365 			  csi->scratch.paddr);