gpio: ath79: use devm_platform_ioremap_resource()

There's no need to use the nocache variant of ioremap(). Switch to
using devm_platform_ioremap_resource().

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/gpio-ath79.c b/drivers/gpio/gpio-ath79.c
index f1a5ea9b3de2a49bc6a107e0032b8e38d8a93b4b..53fae02c40ad8299c7230e6792771924ce991314 100644 (file)
--- a/drivers/gpio/gpio-ath79.c
+++ b/drivers/gpio/gpio-ath79.c
@@ -226,7 +226,6 @@ static int ath79_gpio_probe(struct platform_device *pdev)
        struct device_node *np = dev->of_node;
        struct ath79_gpio_ctrl *ctrl;
        struct gpio_irq_chip *girq;
-       struct resource *res;
        u32 ath79_gpio_count;
        bool oe_inverted;
        int err;
@@ -256,12 +255,9 @@ static int ath79_gpio_probe(struct platform_device *pdev)
                return -EINVAL;
        }
 
-       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       if (!res)
-               return -EINVAL;
-       ctrl->base = devm_ioremap_nocache(dev, res->start, resource_size(res));
-       if (!ctrl->base)
-               return -ENOMEM;
+       ctrl->base = devm_platform_ioremap_resource(pdev, 0);
+       if (IS_ERR(ctrl->base))
+               return PTR_ERR(ctrl->base);
 
        raw_spin_lock_init(&ctrl->lock);
        err = bgpio_init(&ctrl->gc, dev, 4,