On Wed, Jan 11, 2023 at 02:32:11PM +0530, Vijendar Mukunda wrote: > +static int acp63_sdw_dma_start(struct snd_pcm_substream *stream) > +{ > + struct sdw_stream_instance *sdw_ins; > + struct snd_soc_pcm_runtime *prtd; > + u32 stream_id; > + u32 sdw_dma_reg; > + u32 sdw_dma_en_stat_reg; > + u32 sdw_dma_stat; > + u32 val; > + int timeout = 0; > + > + sdw_ins = stream->runtime->private_data; > + prtd = stream->private_data; > + stream_id = sdw_ins->stream_id; > + switch (stream_id) { > + case ACP_SDW_AUDIO_TX: > + sdw_dma_reg = ACP_SW_AUDIO_TX_EN; > + sdw_dma_en_stat_reg = ACP_SW_AUDIO_TX_EN_STATUS; > + break; Not super urgent but if you're respinning then it looks like the register selection here is the same in _dma_stop() so they could be shared. Indeed it generally feels like it might be nicer to have a table of structs listing the registers needed per stream so all these switch statements can be more like sdw_dma_reg = stream_registers[sdw_ins->stream_id]; That'd make each function smaller and I'd expect it'd be a bit easier to add new streams for new hardware that way.
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