gpio: davinci: use devm_platform_ioremap_resource()

Use the new helper that wraps the calls to platform_get_resource() and
devm_ioremap_resource() together.

Signed-off-by: Bartosz Golaszewski <[e-mail]>
Reviewed-by: Andy Shevchenko <[e-mail]>
Signed-off-by: Linus Walleij <[e-mail]>

drivers/gpio/gpio-davinci.c

···
 	struct davinci_gpio_controller *chips;
 	struct davinci_gpio_platform_data *pdata;
 	struct device *dev = &pdev->dev;
-	struct resource *res;
 
 	pdata = davinci_gpio_get_pdata(pdev);
 	if (!pdata) {
···
 	if (!chips)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	gpio_base = devm_ioremap_resource(dev, res);
+	gpio_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(gpio_base))
 		return PTR_ERR(gpio_base);