ASoC: fsl_micfil: Use of_device_get_match_data()

The retrieval of driver data via of_device_get_match_data() can make
the code simpler.

Use of_device_get_match_data() to simplify the code.
Signed-off-by: NFabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20210118123815.1630882-2-festevam@gmail.comSigned-off-by: NMark Brown <broonie@kernel.org>

sound/soc/fsl/fsl_micfil.c

@@ -637,7 +637,6 @@ static irqreturn_t micfil_err_isr(int irq, void *devid)
 static int fsl_micfil_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
-	const struct of_device_id *of_id;
 	struct fsl_micfil *micfil;
 	struct resource *res;
 	void __iomem *regs;
@@ -651,11 +650,7 @@ static int fsl_micfil_probe(struct platform_device *pdev)
 	micfil->pdev = pdev;
 	strncpy(micfil->name, np->name, sizeof(micfil->name) - 1);
 
-	of_id = of_match_device(fsl_micfil_dt_ids, &pdev->dev);
-	if (!of_id || !of_id->data)
-		return -EINVAL;
-
-	micfil->soc = of_id->data;
+	micfil->soc = of_device_get_match_data(&pdev->dev);
 
 	/* ipg_clk is used to control the registers
 	 * ipg_clk_app is used to operate the filter