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gpio: ath79: Make the driver removable

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As we now allow the driver to be built as a module it should be
removable.

Signed-off-by: Alban Bedel <albeu@free.fr>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Alban Bedel 2016-01-28 20:44:31 +01:00 • committed by Linus Walleij
parent 409d87838d
commit 2f890cf0df
1 changed files with 10 additions and 0 deletions
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10
drivers/gpio/gpio-ath79.c
View file

@ -46,6 +46,7 @@ static int ath79_gpio_probe(struct platform_device *pdev)
ctrl = devm_kzalloc(&pdev->dev, sizeof(*ctrl), GFP_KERNEL);
if (!ctrl)
return -ENOMEM;
platform_set_drvdata(pdev, ctrl);
if (np) {
err = of_property_read_u32(np, "ngpios", &ath79_gpio_count);
@ -97,12 +98,21 @@ static int ath79_gpio_probe(struct platform_device *pdev)
return 0;
}
static int ath79_gpio_remove(struct platform_device *pdev)
{
struct ath79_gpio_ctrl *ctrl = platform_get_drvdata(pdev);
gpiochip_remove(&ctrl->gc);
return 0;
}
static struct platform_driver ath79_gpio_driver = {
.driver = {
.name = "ath79-gpio",
.of_match_table = ath79_gpio_of_match,
},
.probe = ath79_gpio_probe,
.remove = ath79_gpio_remove,
};
module_platform_driver(ath79_gpio_driver);