132 			 struct snd_pcm_substream *substream)  in chv3_dma_open()  argument
134 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);  in chv3_dma_open()
138 	snd_soc_set_runtime_hwparams(substream, &chv3_dma_hw);  in chv3_dma_open()
140 	res = snd_pcm_hw_constraint_pow2(substream->runtime, 0,  in chv3_dma_open()
145 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)  in chv3_dma_open()
146 		i2s->rx_substream = substream;  in chv3_dma_open()
148 		i2s->tx_substream = substream;  in chv3_dma_open()
153 			  struct snd_pcm_substream *substream)  in chv3_dma_close()  argument
155 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);  in chv3_dma_close()
158 	if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)  in chv3_dma_close()
170 	struct snd_pcm_substream *substream;  in chv3_dma_pcm_construct()  local
173 	substream = rtd->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;  in chv3_dma_pcm_construct()
174 	if (substream) {  in chv3_dma_pcm_construct()
176 				I2S_MAX_BUFFER_SIZE, &substream->dma_buffer);  in chv3_dma_pcm_construct()
181 	substream = rtd->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;  in chv3_dma_pcm_construct()
182 	if (substream) {  in chv3_dma_pcm_construct()
184 				I2S_MAX_BUFFER_SIZE, &substream->dma_buffer);  in chv3_dma_pcm_construct()
193 			      struct snd_pcm_substream *substream,  in chv3_dma_hw_params()  argument
196 	snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);  in chv3_dma_hw_params()
201 			    struct snd_pcm_substream *substream)  in chv3_dma_prepare()  argument
203 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);  in chv3_dma_prepare()
207 	buffer_bytes = snd_pcm_lib_buffer_bytes(substream);  in chv3_dma_prepare()
208 	period_bytes = snd_pcm_lib_period_bytes(substream);  in chv3_dma_prepare()
209 	period_size = substream->runtime->period_size;  in chv3_dma_prepare()
211 	if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE) {  in chv3_dma_prepare()
213 		chv3_i2s_wr(i2s, I2S_RX_BASE_ADDR, substream->dma_buffer.addr);  in chv3_dma_prepare()
219 		chv3_i2s_wr(i2s, I2S_TX_BASE_ADDR, substream->dma_buffer.addr);  in chv3_dma_prepare()
230 					  struct snd_pcm_substream *substream)  in chv3_dma_pointer()  argument
232 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);  in chv3_dma_pointer()
237 	frame_bytes = substream->runtime->frame_bits * 8;  in chv3_dma_pointer()
238 	buffer_bytes = snd_pcm_lib_buffer_bytes(substream);  in chv3_dma_pointer()
240 	if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE) {  in chv3_dma_pointer()
248 	return bytes_to_frames(substream->runtime, idx_bytes);  in chv3_dma_pointer()
252 			struct snd_pcm_substream *substream)  in chv3_dma_ack()  argument
254 	struct snd_pcm_runtime *runtime = substream->runtime;  in chv3_dma_ack()
255 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);  in chv3_dma_ack()
260 	idx = bytes & (snd_pcm_lib_buffer_bytes(substream) - 1);  in chv3_dma_ack()
262 	if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)  in chv3_dma_ack()