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pinctrl/u300: use managed resources

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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>
This commit is contained in:
Linus Walleij 2012-10-17 19:17:56 +02:00
parent 585583f54f
commit b36bdc5911
1 changed files with 4 additions and 28 deletions
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32
drivers/pinctrl/pinctrl-u300.c
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@ -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;