Unverified Commit 6398b004 authored by Shengjiu Wang's avatar Shengjiu Wang Committed by Mark Brown
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ASoC: fsl_asrc_dma: enable dual fifo for ASRC P2P 



The SSI and SPDIF has dual fifos, enhance P2P for these
case with using the sdma_peripheral_config struct

Signed-off-by: default avatarShengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1653015960-15474-1-git-send-email-shengjiu.wang@nxp.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent d0da7c86

sound/soc/fsl/fsl_asrc_dma.c

+14 −0
Original line number Diff line number Diff line
@@ -129,6 +129,7 @@ static int fsl_asrc_dma_hw_params(struct snd_soc_component *component, 
				  struct snd_pcm_hw_params *params)

{

	enum dma_slave_buswidth buswidth = DMA_SLAVE_BUSWIDTH_2_BYTES;

	enum sdma_peripheral_type be_peripheral_type = IMX_DMATYPE_SSI;

	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);

	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;

	struct snd_dmaengine_dai_dma_data *dma_params_fe = NULL;
@@ -139,6 +140,7 @@ static int fsl_asrc_dma_hw_params(struct snd_soc_component *component, 
	struct snd_soc_component *component_be = NULL;

	struct fsl_asrc *asrc = pair->asrc;

	struct dma_slave_config config_fe, config_be;

	struct sdma_peripheral_config audio_config;

	enum asrc_pair_index index = pair->index;

	struct device *dev = component->dev;

	struct device_node *of_dma_node;
@@ -221,6 +223,7 @@ static int fsl_asrc_dma_hw_params(struct snd_soc_component *component, 
		/* Get DMA request of Back-End */

		tmp_data = tmp_chan->private;

		pair->dma_data.dma_request = tmp_data->dma_request;

		be_peripheral_type = tmp_data->peripheral_type;

		if (!be_chan)

			dma_release_channel(tmp_chan);
@@ -268,6 +271,17 @@ static int fsl_asrc_dma_hw_params(struct snd_soc_component *component, 
	config_be.dst_addr_width = buswidth;

	config_be.dst_maxburst = dma_params_be->maxburst;



	memset(&audio_config, 0, sizeof(audio_config));

	config_be.peripheral_config = &audio_config;

	config_be.peripheral_size  = sizeof(audio_config);



	if (tx && (be_peripheral_type == IMX_DMATYPE_SSI_DUAL ||

		   be_peripheral_type == IMX_DMATYPE_SPDIF))

		audio_config.n_fifos_dst = 2;

	if (!tx && (be_peripheral_type == IMX_DMATYPE_SSI_DUAL ||

		    be_peripheral_type == IMX_DMATYPE_SPDIF))

		audio_config.n_fifos_src = 2;



	if (tx) {

		config_be.src_addr = asrc->paddr + asrc->get_fifo_addr(OUT, index);

		config_be.dst_addr = dma_params_be->addr;