i3c: master: cdns: convert to devm_platform_ioremap_resource

Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>

drivers/i3c/master/i3c-master-cdns.c

@@ -1564,7 +1564,6 @@ static const struct of_device_id cdns_i3c_master_of_ids[] = {
 static int cdns_i3c_master_probe(struct platform_device *pdev)
 {
 	struct cdns_i3c_master *master;
-	struct resource *res;
 	int ret, irq;
 	u32 val;
 
@@ -1576,8 +1575,7 @@ static int cdns_i3c_master_probe(struct platform_device *pdev)
 	if (!master->devdata)
 		return -EINVAL;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	master->regs = devm_ioremap_resource(&pdev->dev, res);
+	master->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(master->regs))
 		return PTR_ERR(master->regs);