media: microchip-sama5d2-isc: Convert to devm_platform_ioremap_resource()

Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/platform/microchip/microchip-sama5d2-isc.c

@@ -409,7 +409,6 @@ static int microchip_isc_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct isc_device *isc;
-	struct resource *res;
 	void __iomem *io_base;
 	struct isc_subdev_entity *subdev_entity;
 	int irq;
@@ -423,8 +422,7 @@ static int microchip_isc_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, isc);
 	isc->dev = dev;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	io_base = devm_ioremap_resource(dev, res);
+	io_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(io_base))
 		return PTR_ERR(io_base);