29 	struct dma_chan *rx_chan;  member
78 	struct dma_chan *rx_chan = priv->rx_chan;  in am654_hbmc_dma_read()  local
84 	if (!priv->rx_chan || !virt_addr_valid(to) || object_is_on_stack(to))  in am654_hbmc_dma_read()
87 	dma_dst = dma_map_single(rx_chan->device->dev, to, len, DMA_FROM_DEVICE);  in am654_hbmc_dma_read()
88 	if (dma_mapping_error(rx_chan->device->dev, dma_dst)) {  in am654_hbmc_dma_read()
94 	tx = dmaengine_prep_dma_memcpy(rx_chan, dma_dst, dma_src, len, flags);  in am654_hbmc_dma_read()
112 	dma_async_issue_pending(rx_chan);  in am654_hbmc_dma_read()
114 		dmaengine_terminate_sync(rx_chan);  in am654_hbmc_dma_read()
120 	dma_unmap_single(rx_chan->device->dev, dma_dst, len, DMA_FROM_DEVICE);  in am654_hbmc_dma_read()
140 	struct dma_chan *rx_chan;  in am654_hbmc_request_mmap_dma()  local
146 	rx_chan = dma_request_chan_by_mask(&mask);  in am654_hbmc_request_mmap_dma()
147 	if (IS_ERR(rx_chan)) {  in am654_hbmc_request_mmap_dma()
148 		if (PTR_ERR(rx_chan) == -EPROBE_DEFER)  in am654_hbmc_request_mmap_dma()
153 	priv->rx_chan = rx_chan;  in am654_hbmc_request_mmap_dma()
224 	if (dev_priv->rx_chan)  in am654_hbmc_probe()
225 		dma_release_channel(dev_priv->rx_chan);  in am654_hbmc_probe()
242 	if (dev_priv->rx_chan)  in am654_hbmc_remove()
243 		dma_release_channel(dev_priv->rx_chan);  in am654_hbmc_remove()