mtd: rawnand: stm32_fmc2: Make use of the helper function devm_platform_ioremap_resource()

Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Reviewed-by: Christophe Kerello <christophe.kerello@foss.st.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210901074222.9433-1-caihuoqing@baidu.com

drivers/mtd/nand/raw/stm32_fmc2_nand.c

@@ -1899,15 +1899,11 @@ static int stm32_fmc2_nfc_probe(struct platform_device *pdev)
 
 		nfc->data_phys_addr[chip_cs] = res->start;
 
-		res = platform_get_resource(pdev, IORESOURCE_MEM,
-					    mem_region + 1);
-		nfc->cmd_base[chip_cs] = devm_ioremap_resource(dev, res);
+		nfc->cmd_base[chip_cs] = devm_platform_ioremap_resource(pdev, mem_region + 1);
 		if (IS_ERR(nfc->cmd_base[chip_cs]))
 			return PTR_ERR(nfc->cmd_base[chip_cs]);
 
-		res = platform_get_resource(pdev, IORESOURCE_MEM,
-					    mem_region + 2);
-		nfc->addr_base[chip_cs] = devm_ioremap_resource(dev, res);
+		nfc->addr_base[chip_cs] = devm_platform_ioremap_resource(pdev, mem_region + 2);
 		if (IS_ERR(nfc->addr_base[chip_cs]))
 			return PTR_ERR(nfc->addr_base[chip_cs]);
 	}