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gpio: mpc5200: Use of_mm_gpiochip_remove

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Since d621e8bae5 (Create of_mm_gpiochip_remove), there is a
counterpart for of_mm_gpiochip_add.

This patch implements the remove function of the driver making use of
it.

Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Ricardo Ribalda Delgado 2015-01-18 12:39:26 +01:00 committed by Linus Walleij
parent 1dfb4a0d76
commit f91b2dbba5
1 changed files with 18 additions and 5 deletions
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23
drivers/gpio/gpio-mpc5200.c
View file

@ -155,10 +155,12 @@ static int mpc52xx_wkup_gpiochip_probe(struct platform_device *ofdev)
struct gpio_chip *gc;
int ret;
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
chip = devm_kzalloc(&ofdev->dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
return -ENOMEM;
platform_set_drvdata(ofdev, chip);
gc = &chip->mmchip.gc;
gc->ngpio = 8;
@ -181,7 +183,11 @@ static int mpc52xx_wkup_gpiochip_probe(struct platform_device *ofdev)
static int mpc52xx_gpiochip_remove(struct platform_device *ofdev)
{
return -EBUSY;
struct mpc52xx_gpiochip *chip = platform_get_drvdata(ofdev);
of_mm_gpiochip_remove(&chip->mmchip);
return 0;
}
static const struct of_device_id mpc52xx_wkup_gpiochip_match[] = {
@ -314,10 +320,12 @@ static int mpc52xx_simple_gpiochip_probe(struct platform_device *ofdev)
struct mpc52xx_gpio __iomem *regs;
int ret;
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
chip = devm_kzalloc(&ofdev->dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
return -ENOMEM;
platform_set_drvdata(ofdev, chip);
gc = &chip->mmchip.gc;
gc->ngpio = 32;
@ -363,11 +371,16 @@ static int __init mpc52xx_gpio_init(void)
return 0;
}
/* Make sure we get initialised before anyone else tries to use us */
subsys_initcall(mpc52xx_gpio_init);
/* No exit call at the moment as we cannot unregister of gpio chips */
static void __exit mpc52xx_gpio_exit(void)
{
platform_driver_unregister(&mpc52xx_wkup_gpiochip_driver);
platform_driver_unregister(&mpc52xx_simple_gpiochip_driver);
}
module_exit(mpc52xx_gpio_exit);
MODULE_DESCRIPTION("Freescale MPC52xx gpio driver");
MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de");