Unverified Commit ef5c23ae authored by Shengjiu Wang's avatar Shengjiu Wang Committed by Mark Brown
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ASoC: fsl_asrc_dma: get codec or cpu dai from backend 



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: default avatarShengjiu Wang <shengjiu.wang@nxp.com>
Link: https://patch.msgid.link/20250319033504.2898605-1-shengjiu.wang@nxp.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent a31a4934

sound/soc/fsl/fsl_asrc_dma.c

+14 −1
Original line number Diff line number Diff line
@@ -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;