ASoC: fsl_audmix: register card device depends on 'dais' property

In order to make the audmix device linked by audio graph card, make
'dais' property to be optional.

If 'dais' property exists, then register the imx-audmix card driver.
otherwise, it should be linked by audio graph card.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://patch.msgid.link/20250226100508.2352568-5-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/fsl/fsl_audmix.c b/sound/soc/fsl/fsl_audmix.c
index 3cd9a66b70a15707f960d976e7b604b86364db55..7981d598ba139bfd15ac49b707e6101c3ee02500 100644 (file)
--- a/sound/soc/fsl/fsl_audmix.c
+++ b/sound/soc/fsl/fsl_audmix.c
@@ -488,11 +488,17 @@ static int fsl_audmix_probe(struct platform_device *pdev)
                goto err_disable_pm;
        }
 
-       priv->pdev = platform_device_register_data(dev, "imx-audmix", 0, NULL, 0);
-       if (IS_ERR(priv->pdev)) {
-               ret = PTR_ERR(priv->pdev);
-               dev_err(dev, "failed to register platform: %d\n", ret);
-               goto err_disable_pm;
+       /*
+        * If dais property exist, then register the imx-audmix card driver.
+        * otherwise, it should be linked by audio graph card.
+        */
+       if (of_find_property(pdev->dev.of_node, "dais", NULL)) {
+               priv->pdev = platform_device_register_data(dev, "imx-audmix", 0, NULL, 0);
+               if (IS_ERR(priv->pdev)) {
+                       ret = PTR_ERR(priv->pdev);
+                       dev_err(dev, "failed to register platform: %d\n", ret);
+                       goto err_disable_pm;
+               }
        }
 
        return 0;