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gpio: fix warning of 'struct gpio_chip' declaration
The struct gpio_chip is only defined inside #ifdef CONFIG_GPIOLIB, but it's referenced by gpiochip_add_pin_range() and gpiochip_remove_pin_ranges() which are outside #ifdef CONFIG_GPIOLIB. Thus, we see the following warning when building blackfin image, where GPIOLIB is not required. CC arch/blackfin/kernel/bfin_gpio.o CC init/version.o In file included from arch/blackfin/include/asm/gpio.h:321, from arch/blackfin/kernel/bfin_gpio.c:15: include/asm-generic/gpio.h:298: warning: 'struct gpio_chip' declared inside parameter list include/asm-generic/gpio.h:298: warning: its scope is only this definition or declaration, which is probably not what you want include/asm-generic/gpio.h:304: warning: 'struct gpio_chip' declared inside parameter list Move pinctrl trunk into #ifdef CONFIG_GPIOLIB to fix the warning, since it appears that pinctrl gpio range support depends on GPIOLIB. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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@ -212,6 +212,43 @@ extern void gpio_unexport(unsigned gpio);
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#endif /* CONFIG_GPIO_SYSFS */
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#ifdef CONFIG_PINCTRL
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/**
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* struct gpio_pin_range - pin range controlled by a gpio chip
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* @head: list for maintaining set of pin ranges, used internally
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* @pctldev: pinctrl device which handles corresponding pins
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* @range: actual range of pins controlled by a gpio controller
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*/
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struct gpio_pin_range {
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struct list_head node;
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struct pinctrl_dev *pctldev;
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struct pinctrl_gpio_range range;
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};
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int gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,
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unsigned int gpio_offset, unsigned int pin_offset,
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unsigned int npins);
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void gpiochip_remove_pin_ranges(struct gpio_chip *chip);
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#else
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static inline int
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gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,
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unsigned int gpio_offset, unsigned int pin_offset,
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unsigned int npins)
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{
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return 0;
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}
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static inline void
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gpiochip_remove_pin_ranges(struct gpio_chip *chip)
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{
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}
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#endif /* CONFIG_PINCTRL */
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#else /* !CONFIG_GPIOLIB */
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static inline bool gpio_is_valid(int number)
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@ -270,41 +307,4 @@ static inline void gpio_unexport(unsigned gpio)
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}
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#endif /* CONFIG_GPIO_SYSFS */
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#ifdef CONFIG_PINCTRL
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/**
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* struct gpio_pin_range - pin range controlled by a gpio chip
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* @head: list for maintaining set of pin ranges, used internally
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* @pctldev: pinctrl device which handles corresponding pins
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* @range: actual range of pins controlled by a gpio controller
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*/
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struct gpio_pin_range {
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struct list_head node;
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struct pinctrl_dev *pctldev;
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struct pinctrl_gpio_range range;
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};
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int gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,
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unsigned int gpio_offset, unsigned int pin_offset,
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unsigned int npins);
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void gpiochip_remove_pin_ranges(struct gpio_chip *chip);
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#else
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static inline int
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gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,
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unsigned int gpio_offset, unsigned int pin_offset,
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unsigned int npins)
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{
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return 0;
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}
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static inline void
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gpiochip_remove_pin_ranges(struct gpio_chip *chip)
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{
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}
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#endif /* CONFIG_PINCTRL */
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#endif /* _ASM_GENERIC_GPIO_H */
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