mtd: spi-nor: nxp-spifi: Make use of the helper function devm_platform_ioremap_resource_byname()

Use the devm_platform_ioremap_resource_byname() helper instead of
calling platform_get_resource_byname() and devm_ioremap_resource()
separately

Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Acked-by: Pratyush Yadav <p.yadav@ti.com>
Link: https://lore.kernel.org/r/20210901074307.9733-1-caihuoqing@baidu.com

Author: caihuoqing1990

drivers/mtd/spi-nor/controllers/nxp-spifi.c

@@ -381,20 +381,17 @@ static int nxp_spifi_probe(struct platform_device *pdev)
 {
 	struct device_node *flash_np;
 	struct nxp_spifi *spifi;
-	struct resource *res;
 	int ret;
 
 	spifi = devm_kzalloc(&pdev->dev, sizeof(*spifi), GFP_KERNEL);
 	if (!spifi)
 		return -ENOMEM;
 
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "spifi");
-	spifi->io_base = devm_ioremap_resource(&pdev->dev, res);
+	spifi->io_base = devm_platform_ioremap_resource_byname(pdev, "spifi");
 	if (IS_ERR(spifi->io_base))
 		return PTR_ERR(spifi->io_base);
 
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "flash");
-	spifi->flash_base = devm_ioremap_resource(&pdev->dev, res);
+	spifi->flash_base = devm_platform_ioremap_resource_byname(pdev, "flash");
 	if (IS_ERR(spifi->flash_base))
 		return PTR_ERR(spifi->flash_base);