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gpio: Add devm_ apis for gpiochip_add_data and gpiochip_remove

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Add device managed APIs devm_gpiochip_add_data() and
devm_gpiochip_remove() for the APIs gpiochip_add_data()
and gpiochip_remove().

This helps in reducing code in error path and sometimes
removal of .remove callback for driver unbind.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
This commit is contained in:
Laxman Dewangan
2016-02-15 16:32:09 +05:30
parent e5451c8f83
commit 0cf3292cde
2 changed files with 78 additions and 0 deletions
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4
include/linux/gpio/driver.h
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@@ -192,6 +192,10 @@ static inline int gpiochip_add(struct gpio_chip *chip)
return gpiochip_add_data(chip, NULL);
}
extern void gpiochip_remove(struct gpio_chip *chip);
extern int devm_gpiochip_add_data(struct device *dev, struct gpio_chip *chip,
void *data);
extern void devm_gpiochip_remove(struct device *dev, struct gpio_chip *chip);
extern struct gpio_chip *gpiochip_find(void *data,
int (*match)(struct gpio_chip *chip, void *data));