mmc: sh_mmcif: Use platform_get_irq_optional() for optional interrupt

As platform_get_irq() now prints an error when the interrupt does not
exist, a scary warning may be printed for an optional interrupt:

    sh_mmcif ee200000.mmc: IRQ index 1 not found

Fix this by calling platform_get_irq_optional() instead for the second
interrupt, which is optional.

Remove the now superfluous error printing for the first interrupt, which
is mandatory.

Fixes: 7723f4c ("driver core: platform: Add an error message to platform_get_irq*()")
Signed-off-by: Geert Uytterhoeven <[email protected]>
Reviewed-by: Yoshihiro Shimoda <[email protected]>
Tested-by: Yoshihiro Shimoda <[email protected]>
Reviewed-by: Wolfram Sang <[email protected]>
Tested-by: Wolfram Sang <[email protected]>
Signed-off-by: Ulf Hansson <[email protected]>

Author: geertu

drivers/mmc/host/sh_mmcif.c

@@ -1393,11 +1393,9 @@ static int sh_mmcif_probe(struct platform_device *pdev)
 	const char *name;
 
 	irq[0] = platform_get_irq(pdev, 0);
-	irq[1] = platform_get_irq(pdev, 1);
-	if (irq[0] < 0) {
-		dev_err(dev, "Get irq error\n");
+	irq[1] = platform_get_irq_optional(pdev, 1);
+	if (irq[0] < 0)
 		return -ENXIO;
-	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	reg = devm_ioremap_resource(dev, res);