ASoC: atmel-classd: Use devm_platform_get_and_ioremap_resource()

Use devm_platform_get_and_ioremap_resource() to simplify
code.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20210611022115.3583765-1-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/atmel/atmel-classd.c

@@ -558,8 +558,7 @@ static int atmel_classd_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	io_base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
-	io_base = devm_ioremap_resource(dev, res);
 	if (IS_ERR(io_base))
 		return PTR_ERR(io_base);