31 	if (!pcm->chan[substream->stream])  in dmaengine_dma_dev()
34 	return pcm->chan[substream->stream]->device->dev;  in dmaengine_dma_dev()
81 	struct dma_chan *chan = snd_dmaengine_pcm_get_chan(substream);  in dmaengine_pcm_hw_params()  local
99 		ret = dmaengine_slave_config(chan, &slave_config);  in dmaengine_pcm_hw_params()
114 	struct dma_chan *chan = pcm->chan[substream->stream];  in dmaengine_pcm_set_runtime_hwparams()  local
151 						  chan);  in dmaengine_pcm_set_runtime_hwparams()
160 	struct dma_chan *chan = pcm->chan[substream->stream];  in dmaengine_pcm_open()  local
167 	return snd_dmaengine_pcm_open(substream, chan);  in dmaengine_pcm_open()
199 	if ((pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) && pcm->chan[0])  in dmaengine_pcm_compat_request_channel()
200 		return pcm->chan[0];  in dmaengine_pcm_compat_request_channel()
212 	struct dma_chan *chan)  in dmaengine_pcm_can_report_residue()  argument
217 	ret = dma_get_slave_caps(chan, &dma_caps);  in dmaengine_pcm_can_report_residue()
255 		if (!pcm->chan[i] && config && config->chan_names[i])  in dmaengine_pcm_new()
256 			pcm->chan[i] = dma_request_slave_channel(dev,  in dmaengine_pcm_new()
259 		if (!pcm->chan[i] && (pcm->flags & SND_DMAENGINE_PCM_FLAG_COMPAT)) {  in dmaengine_pcm_new()
260 			pcm->chan[i] = dmaengine_pcm_compat_request_channel(  in dmaengine_pcm_new()
264 		if (!pcm->chan[i]) {  in dmaengine_pcm_new()
276 		if (!dmaengine_pcm_can_report_residue(dev, pcm->chan[i]))  in dmaengine_pcm_new()
365 	struct dma_chan *chan;  in dmaengine_pcm_request_chan_of()  local
390 		chan = dma_request_chan(dev, name);  in dmaengine_pcm_request_chan_of()
391 		if (IS_ERR(chan)) {  in dmaengine_pcm_request_chan_of()
397 			if (PTR_ERR(chan) == -EPROBE_DEFER)  in dmaengine_pcm_request_chan_of()
399 			pcm->chan[i] = NULL;  in dmaengine_pcm_request_chan_of()
401 			pcm->chan[i] = chan;  in dmaengine_pcm_request_chan_of()
408 		pcm->chan[1] = pcm->chan[0];  in dmaengine_pcm_request_chan_of()
418 		if (!pcm->chan[i])  in dmaengine_pcm_release_chan()
420 		dma_release_channel(pcm->chan[i]);  in dmaengine_pcm_release_chan()