ASoC: fsl_micfil: drop support for undocumented property

The "fsl,shared-interrupt" property is undocumented and unnecessary.
Just pass IRQF_SHARED unconditionally.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com>
Link: https://lore.kernel.org/r/20220414162249.3934543-20-s.hauer@pengutronix.deSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/fsl/fsl_micfil.c

@@ -554,7 +554,6 @@ static int fsl_micfil_probe(struct platform_device *pdev)
 	struct resource *res;
 	void __iomem *regs;
 	int ret, i;
-	unsigned long irqflag = 0;
 
 	micfil = devm_kzalloc(&pdev->dev, sizeof(*micfil), GFP_KERNEL);
 	if (!micfil)
@@ -618,12 +617,9 @@ static int fsl_micfil_probe(struct platform_device *pdev)
 			return micfil->irq[i];
 	}
 
-	if (of_property_read_bool(np, "fsl,shared-interrupt"))
-		irqflag = IRQF_SHARED;
-
 	/* Digital Microphone interface interrupt */
 	ret = devm_request_irq(&pdev->dev, micfil->irq[0],
-			       micfil_isr, irqflag,
+			       micfil_isr, IRQF_SHARED,
 			       micfil->name, micfil);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to claim mic interface irq %u\n",
@@ -633,7 +629,7 @@ static int fsl_micfil_probe(struct platform_device *pdev)
 
 	/* Digital Microphone interface error interrupt */
 	ret = devm_request_irq(&pdev->dev, micfil->irq[1],
-			       micfil_err_isr, irqflag,
+			       micfil_err_isr, IRQF_SHARED,
 			       micfil->name, micfil);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to claim mic interface error irq %u\n",