Commit 403c1d0b authored by Linus Walleij's avatar Linus Walleij

gpio: provide stubs for devres gpio functions

commit 6b3d8145dcfdbbb43f13544e16f44f4574f941dd
"gpiolib: make GPIO_DEVRES depend on GPIOLIB"
breaks builds when device drivers are using devm_gpio*
devres functions without enabling GPIOLIB, relying on
the devres code to be compiled anyway.

Provide stubs so that we get these if we're using the
devres functions without GPIOLIB.
Reported-by: default avatarFengguang Wu <fengguang.wu@intel.com>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 3c2c628f
...@@ -77,6 +77,15 @@ static inline int irq_to_gpio(unsigned int irq) ...@@ -77,6 +77,15 @@ static inline int irq_to_gpio(unsigned int irq)
#endif /* ! CONFIG_ARCH_HAVE_CUSTOM_GPIO_H */ #endif /* ! CONFIG_ARCH_HAVE_CUSTOM_GPIO_H */
/* CONFIG_GPIOLIB: bindings for managed devices that want to request gpios */
struct device;
int devm_gpio_request(struct device *dev, unsigned gpio, const char *label);
int devm_gpio_request_one(struct device *dev, unsigned gpio,
unsigned long flags, const char *label);
void devm_gpio_free(struct device *dev, unsigned int gpio);
#else /* ! CONFIG_GPIOLIB */ #else /* ! CONFIG_GPIOLIB */
#include <linux/kernel.h> #include <linux/kernel.h>
...@@ -241,14 +250,25 @@ gpiochip_remove_pin_ranges(struct gpio_chip *chip) ...@@ -241,14 +250,25 @@ gpiochip_remove_pin_ranges(struct gpio_chip *chip)
WARN_ON(1); WARN_ON(1);
} }
#endif /* ! CONFIG_GPIOLIB */ static inline int devm_gpio_request(struct device *dev, unsigned gpio,
const char *label)
{
WARN_ON(1);
return -EINVAL;
}
struct device; static inline int devm_gpio_request_one(struct device *dev, unsigned gpio,
unsigned long flags, const char *label)
{
WARN_ON(1);
return -EINVAL;
}
/* bindings for managed devices that want to request gpios */ static inline void devm_gpio_free(struct device *dev, unsigned int gpio)
int devm_gpio_request(struct device *dev, unsigned gpio, const char *label); {
int devm_gpio_request_one(struct device *dev, unsigned gpio, WARN_ON(1);
unsigned long flags, const char *label); }
void devm_gpio_free(struct device *dev, unsigned int gpio);
#endif /* ! CONFIG_GPIOLIB */
#endif /* __LINUX_GPIO_H */ #endif /* __LINUX_GPIO_H */
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