pinctrl/u300: use managed resources

This converts the U300 pin controller to use managed resources
(devm_*) for it's memory region.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/pinctrl-u300.c b/drivers/pinctrl/pinctrl-u300.c
index 309f5b9a70ec74d4b5e1cca07b6e8e31836f53fa..2e9825e304afa5f609c3cf760ba0c6ae0a40cdf5 100644 (file)
--- a/drivers/pinctrl/pinctrl-u300.c
+++ b/drivers/pinctrl/pinctrl-u300.c
@@ -663,8 +663,6 @@ static const struct pinctrl_pin_desc u300_pads[] = {
 struct u300_pmx {
        struct device *dev;
        struct pinctrl_dev *pctl;
-       u32 phybase;
-       u32 physize;
        void __iomem *virtbase;
 };
 
@@ -1110,7 +1108,6 @@ static int __devinit u300_pmx_probe(struct platform_device *pdev)
        struct u300_pmx *upmx;
        struct resource *res;
        struct gpio_chip *gpio_chip = dev_get_platdata(&pdev->dev);
-       int ret;
        int i;
 
        /* Create state holders etc for this driver */
@@ -1123,26 +1120,15 @@ static int __devinit u300_pmx_probe(struct platform_device *pdev)
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        if (!res)
                return -ENOENT;
-       upmx->phybase = res->start;
-       upmx->physize = resource_size(res);
-
-       if (request_mem_region(upmx->phybase, upmx->physize,
-                              DRIVER_NAME) == NULL) {
-               ret = -ENOMEM;
-               goto out_no_memregion;
-       }
 
-       upmx->virtbase = ioremap(upmx->phybase, upmx->physize);
-       if (!upmx->virtbase) {
-               ret = -ENOMEM;
-               goto out_no_remap;
-       }
+       upmx->virtbase = devm_request_and_ioremap(&pdev->dev, res);
+       if (!upmx->virtbase)
+               return -ENOMEM;
 
        upmx->pctl = pinctrl_register(&u300_pmx_desc, &pdev->dev, upmx);
        if (!upmx->pctl) {
                dev_err(&pdev->dev, "could not register U300 pinmux driver\n");
-               ret = -EINVAL;
-               goto out_no_pmx;
+               return -EINVAL;
        }
 
        /* We will handle a range of GPIO pins */
@@ -1156,14 +1142,6 @@ static int __devinit u300_pmx_probe(struct platform_device *pdev)
        dev_info(&pdev->dev, "initialized U300 pin control driver\n");
 
        return 0;
-
-out_no_pmx:
-       iounmap(upmx->virtbase);
-out_no_remap:
-       platform_set_drvdata(pdev, NULL);
-out_no_memregion:
-       release_mem_region(upmx->phybase, upmx->physize);
-       return ret;
 }
 
 static int __devexit u300_pmx_remove(struct platform_device *pdev)
@@ -1171,8 +1149,6 @@ static int __devexit u300_pmx_remove(struct platform_device *pdev)
        struct u300_pmx *upmx = platform_get_drvdata(pdev);
 
        pinctrl_unregister(upmx->pctl);
-       iounmap(upmx->virtbase);
-       release_mem_region(upmx->phybase, upmx->physize);
        platform_set_drvdata(pdev, NULL);
 
        return 0;