gpio: tegra186: use 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: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20191022084318.22256-9-brgl@bgdev.pl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/gpio/gpio-tegra186.c

@@ -407,7 +407,6 @@ static int tegra186_gpio_probe(struct platform_device *pdev)
 	unsigned int i, j, offset;
 	struct gpio_irq_chip *irq;
 	struct tegra_gpio *gpio;
-	struct resource *res;
 	char **names;
 	int err;
 
@@ -417,8 +416,7 @@ static int tegra186_gpio_probe(struct platform_device *pdev)
 
 	gpio->soc = of_device_get_match_data(&pdev->dev);
 
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "gpio");
-	gpio->base = devm_ioremap_resource(&pdev->dev, res);
+	gpio->base = devm_platform_ioremap_resource_byname(pdev, "gpio");
 	if (IS_ERR(gpio->base))
 		return PTR_ERR(gpio->base);