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ASoC: fsl_asrc_dma: get codec or cpu dai from backend

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With audio graph card, original cpu dai is changed to codec device in
backend, so if cpu dai is dummy device in backend, get the codec dai
device, which is the real hardware device connected.

The specific case is ASRC->SAI->AMIX->CODEC.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://patch.msgid.link/20250319033504.2898605-1-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Shengjiu Wang 2025-03-19 11:35:04 +08:00 committed by Mark Brown
parent a31a4934b3
commit ef5c23ae9a
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GPG Key ID: 24D68B725D5487D0
1 changed files with 14 additions and 1 deletions
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15
sound/soc/fsl/fsl_asrc_dma.c
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@ -156,11 +156,24 @@ static int fsl_asrc_dma_hw_params(struct snd_soc_component *component,
for_each_dpcm_be(rtd, stream, dpcm) {
struct snd_soc_pcm_runtime *be = dpcm->be;
struct snd_pcm_substream *substream_be;
struct snd_soc_dai *dai = snd_soc_rtd_to_cpu(be, 0);
struct snd_soc_dai *dai_cpu = snd_soc_rtd_to_cpu(be, 0);
struct snd_soc_dai *dai_codec = snd_soc_rtd_to_codec(be, 0);
struct snd_soc_dai *dai;
if (dpcm->fe != rtd)
continue;
/*
* With audio graph card, original cpu dai is changed to codec
* device in backend, so if cpu dai is dummy device in backend,
* get the codec dai device, which is the real hardware device
* connected.
*/
if (!snd_soc_dai_is_dummy(dai_cpu))
dai = dai_cpu;
else
dai = dai_codec;
substream_be = snd_soc_dpcm_get_substream(be, stream);
dma_params_be = snd_soc_dai_get_dma_data(dai, substream_be);
dev_be = dai->dev;