61 static int mmp_pcm_hw_params(struct snd_pcm_substream *substream,  in mmp_pcm_hw_params()  argument
64 	struct dma_chan *chan = snd_dmaengine_pcm_get_chan(substream);  in mmp_pcm_hw_params()
69 	    snd_dmaengine_pcm_prepare_slave_config(substream, params,  in mmp_pcm_hw_params()
78 	snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);  in mmp_pcm_hw_params()
100 static int mmp_pcm_open(struct snd_pcm_substream *substream)  in mmp_pcm_open()  argument
102 	struct snd_soc_pcm_runtime *rtd = substream->private_data;  in mmp_pcm_open()
108 	r = platform_get_resource(pdev, IORESOURCE_DMA, substream->stream);  in mmp_pcm_open()
112 	snd_soc_set_runtime_hwparams(substream,  in mmp_pcm_open()
113 				&mmp_pcm_hardware[substream->stream]);  in mmp_pcm_open()
118 	return snd_dmaengine_pcm_open_request_chan(substream, filter,  in mmp_pcm_open()
122 static int mmp_pcm_mmap(struct snd_pcm_substream *substream,  in mmp_pcm_mmap()  argument
125 	struct snd_pcm_runtime *runtime = substream->runtime;  in mmp_pcm_mmap()
146 	struct snd_pcm_substream *substream;  in mmp_pcm_free_dma_buffers()  local
158 		substream = pcm->streams[stream].substream;  in mmp_pcm_free_dma_buffers()
159 		if (!substream)  in mmp_pcm_free_dma_buffers()
162 		buf = &substream->dma_buffer;  in mmp_pcm_free_dma_buffers()
172 static int mmp_pcm_preallocate_dma_buffer(struct snd_pcm_substream *substream,  in mmp_pcm_preallocate_dma_buffer()  argument
175 	struct snd_dma_buffer *buf = &substream->dma_buffer;  in mmp_pcm_preallocate_dma_buffer()
180 	buf->dev.dev = substream->pcm->card->dev;  in mmp_pcm_preallocate_dma_buffer()
196 	struct snd_pcm_substream *substream;  in mmp_pcm_new()  local
201 		substream = pcm->streams[stream].substream;  in mmp_pcm_new()
203 		ret = mmp_pcm_preallocate_dma_buffer(substream,	stream);  in mmp_pcm_new()