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

diff --git a/sound/soc/fsl/fsl_asrc_dma.c b/sound/soc/fsl/fsl_asrc_dma.c
index 5038faf..aaf7993 100644 (file)
--- a/sound/soc/fsl/fsl_asrc_dma.c
+++ b/sound/soc/fsl/fsl_asrc_dma.c
@@ -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;