iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ASoC: fsl_asrc_dma: enable dual fifo for ASRC P2P

Browse Source 
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>
This commit is contained in:
Shengjiu Wang 2022-05-20 11:06:00 +08:00 committed by Mark Brown
parent d0da7c8668
commit 6398b004cf
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 14 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
sound/soc/fsl/fsl_asrc_dma.c
View File

@ -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;