]> git.baikalelectronics.ru Git - kernel.git/commitdiff
ASoC: fsl_micfil: register platform component before registering cpu dai
authorShengjiu Wang <shengjiu.wang@nxp.com>
Fri, 3 Sep 2021 10:30:04 +0000 (18:30 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 30 May 2023 11:44:04 +0000 (12:44 +0100)
[ Upstream commit f9e224433cb2a1ecb8cdbaa95192a563c178075b ]

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.

Fixes: e85d7e270786 ("ASoC: Add MICFIL SoC Digital Audio Interface driver.")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1630665006-31437-4-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
sound/soc/fsl/fsl_micfil.c

index b33746d58633740b8f5b911cc04b8b1ec425a3f9..6285ee8f829e57d60fb5f21cfa0dc924f2477d75 100644 (file)
@@ -740,18 +740,23 @@ static int fsl_micfil_probe(struct platform_device *pdev)
 
        pm_runtime_enable(&pdev->dev);
 
+       /*
+        * 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_micfil_component,
                                              &fsl_micfil_dai, 1);
        if (ret) {
                dev_err(&pdev->dev, "failed to register component %s\n",
                        fsl_micfil_component.name);
-               return ret;
        }
 
-       ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
-       if (ret)
-               dev_err(&pdev->dev, "failed to pcm register\n");
-
        return ret;
 }