ASoC: fsl_spdif: register platform component before registering cpu dai

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: a2388a49 ("ASoC: fsl: Add S/PDIF CPU DAI driver")
Signed-off-by: NShengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1630665006-31437-5-git-send-email-shengjiu.wang@nxp.comSigned-off-by: NMark Brown <broonie@kernel.org>

sound/soc/fsl/fsl_spdif.c

@@ -1434,16 +1434,20 @@ static int fsl_spdif_probe(struct platform_device *pdev)
 	pm_runtime_enable(&pdev->dev);
 	regcache_cache_only(spdif_priv->regmap, true);
 
-	ret = devm_snd_soc_register_component(&pdev->dev, &fsl_spdif_component,
-					      &spdif_priv->cpu_dai_drv, 1);
+	/*
+	 * Register platform component before registering cpu dai for there
+	 * is not defer probe for platform component in snd_soc_add_pcm_runtime().
+	 */
+	ret = imx_pcm_dma_init(pdev, IMX_SPDIF_DMABUF_SIZE);
 	if (ret) {
-		dev_err(&pdev->dev, "failed to register DAI: %d\n", ret);
+		dev_err_probe(&pdev->dev, ret, "imx_pcm_dma_init failed\n");
 		goto err_pm_disable;
 	}
 
-	ret = imx_pcm_dma_init(pdev, IMX_SPDIF_DMABUF_SIZE);
+	ret = devm_snd_soc_register_component(&pdev->dev, &fsl_spdif_component,
+					      &spdif_priv->cpu_dai_drv, 1);
 	if (ret) {
-		dev_err_probe(&pdev->dev, ret, "imx_pcm_dma_init failed\n");
+		dev_err(&pdev->dev, "failed to register DAI: %d\n", ret);
 		goto err_pm_disable;
 	}