[alsa-devel] [PATCH 1/2] ASoC: fsl_audmix: remove "model" attribute

[Viorel Suman]

Use "of_device_id.data" to specify the machine driver,
instead of "model" DTS attribute.

Signed-off-by: Viorel Suman <viorel.suman at nxp.com>
---
 sound/soc/fsl/fsl_audmix.c | 61 ++++++++++++++++++++++++----------------------
 1 file changed, 32 insertions(+), 29 deletions(-)

diff --git a/sound/soc/fsl/fsl_audmix.c b/sound/soc/fsl/fsl_audmix.c
index dabde03..2d10d8b 100644
--- a/sound/soc/fsl/fsl_audmix.c
+++ b/sound/soc/fsl/fsl_audmix.c
@@ -445,61 +445,70 @@ static const struct regmap_config fsl_audmix_regmap_config = {
 	.cache_type = REGCACHE_FLAT,
 };
 
+static const struct of_device_id fsl_audmix_ids[] = {
+	{
+		.compatible = "fsl,imx8qm-audmix",
+		.data = "imx-audmix",
+	},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, fsl_audmix_ids);
+
 static int fsl_audmix_probe(struct platform_device *pdev)
 {
+	struct device *dev = &pdev->dev;
 	struct fsl_audmix *priv;
 	struct resource *res;
+	const char *mdrv;
+	const struct of_device_id *of_id;
 	void __iomem *regs;
 	int ret;
-	const char *sprop;
 
-	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	of_id = of_match_device(fsl_audmix_ids, dev);
+	if (!of_id || !of_id->data)
+		return -EINVAL;
+
+	mdrv = of_id->data;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 
 	/* Get the addresses */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	regs = devm_ioremap_resource(&pdev->dev, res);
+	regs = devm_ioremap_resource(dev, res);
 	if (IS_ERR(regs))
 		return PTR_ERR(regs);
 
-	priv->regmap = devm_regmap_init_mmio_clk(&pdev->dev, "ipg", regs,
+	priv->regmap = devm_regmap_init_mmio_clk(dev, "ipg", regs,
 						 &fsl_audmix_regmap_config);
 	if (IS_ERR(priv->regmap)) {
-		dev_err(&pdev->dev, "failed to init regmap\n");
+		dev_err(dev, "failed to init regmap\n");
 		return PTR_ERR(priv->regmap);
 	}
 
-	priv->ipg_clk = devm_clk_get(&pdev->dev, "ipg");
+	priv->ipg_clk = devm_clk_get(dev, "ipg");
 	if (IS_ERR(priv->ipg_clk)) {
-		dev_err(&pdev->dev, "failed to get ipg clock\n");
+		dev_err(dev, "failed to get ipg clock\n");
 		return PTR_ERR(priv->ipg_clk);
 	}
 
 	platform_set_drvdata(pdev, priv);
-	pm_runtime_enable(&pdev->dev);
+	pm_runtime_enable(dev);
 
-	ret = devm_snd_soc_register_component(&pdev->dev, &fsl_audmix_component,
+	ret = devm_snd_soc_register_component(dev, &fsl_audmix_component,
 					      fsl_audmix_dai,
 					      ARRAY_SIZE(fsl_audmix_dai));
 	if (ret) {
-		dev_err(&pdev->dev, "failed to register ASoC DAI\n");
+		dev_err(dev, "failed to register ASoC DAI\n");
 		return ret;
 	}
 
-	sprop = of_get_property(pdev->dev.of_node, "model", NULL);
-	if (sprop) {
-		priv->pdev = platform_device_register_data(&pdev->dev, sprop, 0,
-							   NULL, 0);
-		if (IS_ERR(priv->pdev)) {
-			ret = PTR_ERR(priv->pdev);
-			dev_err(&pdev->dev,
-				"failed to register platform %s: %d\n", sprop,
-				 ret);
-		}
-	} else {
-		dev_err(&pdev->dev, "[model] attribute missing.\n");
-		ret = -EINVAL;
+	priv->pdev = platform_device_register_data(dev, mdrv, 0, NULL, 0);
+	if (IS_ERR(priv->pdev)) {
+		ret = PTR_ERR(priv->pdev);
+		dev_err(dev, "failed to register platform %s: %d\n",
+			mdrv, ret);
 	}
 
 	return ret;
@@ -553,12 +562,6 @@ static const struct dev_pm_ops fsl_audmix_pm = {
 				pm_runtime_force_resume)
 };
 
-static const struct of_device_id fsl_audmix_ids[] = {
-	{ .compatible = "fsl,imx8qm-audmix", },
-	{ /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(of, fsl_audmix_ids);
-
 static struct platform_driver fsl_audmix_driver = {
 	.probe = fsl_audmix_probe,
 	.remove = fsl_audmix_remove,
-- 
2.7.4