231 	struct dma_chan *ctrl_chan;  member
288 	spdifrx->desc = dmaengine_prep_slave_single(spdifrx->ctrl_chan,  in stm32_spdifrx_dma_ctrl_start()
303 	dma_async_issue_pending(spdifrx->ctrl_chan);  in stm32_spdifrx_dma_ctrl_start()
310 	dmaengine_terminate_async(spdifrx->ctrl_chan);  in stm32_spdifrx_dma_ctrl_stop()
395 	spdifrx->ctrl_chan = dma_request_chan(dev, "rx-ctrl");  in stm32_spdifrx_dma_ctrl_register()
396 	if (IS_ERR(spdifrx->ctrl_chan)) {  in stm32_spdifrx_dma_ctrl_register()
398 		return PTR_ERR(spdifrx->ctrl_chan);  in stm32_spdifrx_dma_ctrl_register()
422 	ret = dmaengine_slave_config(spdifrx->ctrl_chan,  in stm32_spdifrx_dma_ctrl_register()
426 		spdifrx->ctrl_chan = NULL;  in stm32_spdifrx_dma_ctrl_register()
963 	if (!IS_ERR(spdifrx->ctrl_chan))  in stm32_spdifrx_probe()
964 		dma_release_channel(spdifrx->ctrl_chan);  in stm32_spdifrx_probe()
975 	if (spdifrx->ctrl_chan)  in stm32_spdifrx_remove()
976 		dma_release_channel(spdifrx->ctrl_chan);  in stm32_spdifrx_remove()