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Commit 50309a9c authored by Linus Walleij's avatar Linus Walleij
Browse files

gpiolib: iron out include ladder mistakes 



The <*/gpio.h> includes are updated again: now we need to account
for the problem introduced by commit:
595679a8038584df7b9398bf34f61db3c038bfea
"gpiolib: fix up function prototypes etc"

Actually we need static inlines in include/asm-generic/gpio.h
as well since we may have GPIOLIB but not PINCTRL.
Make sure to move all the CONFIG_PINCTRL business
to the end of the file so we are sure we have
declared struct gpio_chip.

And we need to keep the static inlines in <linux/gpio.h>
but here for the !CONFIG_GENERIC_GPIO case, and then we
may as well throw in a few warnings like the other
prototypes there, if someone would have the bad taste
of compiling without GENERIC_GPIO even.

Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 1e63d7b9

include/asm-generic/gpio.h

+35 −21
Original line number Diff line number Diff line
@@ -48,27 +48,6 @@ struct seq_file; 
struct module;

struct device_node;



#ifdef CONFIG_PINCTRL



/**

 * struct gpio_pin_range - pin range controlled by a gpio chip

 * @head: list for maintaining set of pin ranges, used internally

 * @pctldev: pinctrl device which handles corresponding pins

 * @range: actual range of pins controlled by a gpio controller

 */



struct gpio_pin_range {

	struct list_head node;

	struct pinctrl_dev *pctldev;

	struct pinctrl_gpio_range range;

};



int gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,

			   unsigned int pin_base, unsigned int npins);

void gpiochip_remove_pin_ranges(struct gpio_chip *chip);



#endif



/**

 * struct gpio_chip - abstract a GPIO controller

 * @label: for diagnostics
@@ -288,4 +267,39 @@ static inline void gpio_unexport(unsigned gpio) 
}

#endif	/* CONFIG_GPIO_SYSFS */



#ifdef CONFIG_PINCTRL



/**

 * struct gpio_pin_range - pin range controlled by a gpio chip

 * @head: list for maintaining set of pin ranges, used internally

 * @pctldev: pinctrl device which handles corresponding pins

 * @range: actual range of pins controlled by a gpio controller

 */



struct gpio_pin_range {

	struct list_head node;

	struct pinctrl_dev *pctldev;

	struct pinctrl_gpio_range range;

};



int gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,

			   unsigned int pin_base, unsigned int npins);

void gpiochip_remove_pin_ranges(struct gpio_chip *chip);



#else



static inline int

gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,

		       unsigned int pin_base, unsigned int npins)

{

	return 0;

}



static inline void

gpiochip_remove_pin_ranges(struct gpio_chip *chip)

{

}



#endif /* CONFIG_PINCTRL */



#endif /* _ASM_GENERIC_GPIO_H */

include/linux/gpio.h

+3 −4
Original line number Diff line number Diff line
@@ -231,21 +231,20 @@ static inline int irq_to_gpio(unsigned irq) 
	return -EINVAL;

}



#ifdef CONFIG_PINCTRL



static inline int

gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,

		       unsigned int pin_base, unsigned int npins)

{

	WARN_ON(1);

	return -EINVAL;

}



static inline void

gpiochip_remove_pin_ranges(struct gpio_chip *chip)

{

	WARN_ON(1);

}



#endif /* CONFIG_PINCTRL */



#endif /* ! CONFIG_GENERIC_GPIO */



#endif /* __LINUX_GPIO_H */