diff options
Diffstat (limited to 'drivers/gpio/gpio-mpc5200.c')
| -rw-r--r-- | drivers/gpio/gpio-mpc5200.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/gpio/gpio-mpc5200.c b/drivers/gpio/gpio-mpc5200.c index 8ce6c9510035..4c542153e923 100644 --- a/drivers/gpio/gpio-mpc5200.c +++ b/drivers/gpio/gpio-mpc5200.c @@ -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"); |