From: Shengjiu Wang <shengjiu.wang@xxxxxxx>
[ Upstream commit ea532c29972df96fda20393d9bf057e898f5e965 ]
There is no defer probe when adding platform component to
snd_soc_pcm_runtime(rtd), the code is in snd_soc_add_pcm_runtime()
snd_soc_register_card()
-> snd_soc_bind_card()
-> snd_soc_add_pcm_runtime()
-> adding cpu dai
-> adding codec dai
-> adding platform component.
So if the platform component is not ready at that time, then the
sound card still registered successfully, but platform component
is empty, the sound card can't be used.
As there is defer probe checking for cpu dai component, then register
platform component before cpu dai to avoid such issue.
And the behavior of imx_pcm_dma_init() is same as common
devm_snd_dmaengine_pcm_register(), so use
devm_snd_dmaengine_pcm_register() instead
Signed-off-by: Shengjiu Wang <shengjiu.wang@xxxxxxx>
Link: https://lore.kernel.org/r/1661430460-5234-1-git-send-email-shengjiu.wang@xxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
sound/soc/fsl/fsl_aud2htx.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/sound/soc/fsl/fsl_aud2htx.c b/sound/soc/fsl/fsl_aud2htx.c
index 422922146f2a5..e09015e7e3c7c 100644
--- a/sound/soc/fsl/fsl_aud2htx.c
+++ b/sound/soc/fsl/fsl_aud2htx.c
@@ -233,6 +233,16 @@ static int fsl_aud2htx_probe(struct platform_device *pdev)
regcache_cache_only(aud2htx->regmap, true);
+ /*
+ * Register platform component before registering cpu dai for there
+ * is not defer probe for platform component in snd_soc_add_pcm_runtime().
+ */
+ ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to pcm register\n");
+ return ret;
+ }
+
ret = devm_snd_soc_register_component(&pdev->dev,
&fsl_aud2htx_component,
&fsl_aud2htx_dai, 1);
@@ -241,10 +251,6 @@ static int fsl_aud2htx_probe(struct platform_device *pdev)
return ret;
}
- ret = imx_pcm_dma_init(pdev);
- if (ret)
- dev_err(&pdev->dev, "failed to init imx pcm dma: %d\n", ret);
-
return ret;
}
--
2.35.1
