spi: spi-gxp: Use 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: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220928145256.1879256-1-yangyingliang@huawei.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-gxp.c

@@ -254,7 +254,6 @@ static int gxp_spifi_probe(struct platform_device *pdev)
 	const struct gxp_spi_data *data;
 	struct spi_controller *ctlr;
 	struct gxp_spi *spifi;
-	struct resource *res;
 	int ret;
 
 	data = of_device_get_match_data(&pdev->dev);
@@ -269,18 +268,15 @@ static int gxp_spifi_probe(struct platform_device *pdev)
 	spifi->data = data;
 	spifi->dev = dev;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	spifi->reg_base = devm_ioremap_resource(&pdev->dev, res);
+	spifi->reg_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(spifi->reg_base))
 		return PTR_ERR(spifi->reg_base);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	spifi->dat_base = devm_ioremap_resource(&pdev->dev, res);
+	spifi->dat_base = devm_platform_ioremap_resource(pdev, 1);
 	if (IS_ERR(spifi->dat_base))
 		return PTR_ERR(spifi->dat_base);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
-	spifi->dir_base = devm_ioremap_resource(&pdev->dev, res);
+	spifi->dir_base = devm_platform_ioremap_resource(pdev, 2);
 	if (IS_ERR(spifi->dir_base))
 		return PTR_ERR(spifi->dir_base);