diff mbox series

ASoC: fsl_asrc_dma: get codec or cpu dai from backend

Message ID 20250319033504.2898605-1-shengjiu.wang@nxp.com (mailing list archive)
State New
Headers show
Series ASoC: fsl_asrc_dma: get codec or cpu dai from backend | expand

Commit Message

Shengjiu Wang March 19, 2025, 3:35 a.m. UTC 
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>
---
 sound/soc/fsl/fsl_asrc_dma.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/sound/soc/fsl/fsl_asrc_dma.c b/sound/soc/fsl/fsl_asrc_dma.c
index f501f47242fb..1bba48318e2d 100644
--- a/sound/soc/fsl/fsl_asrc_dma.c
+++ b/sound/soc/fsl/fsl_asrc_dma.c
@@ -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;