diff options
Diffstat (limited to 'include/linux/gpio')
| -rw-r--r-- | include/linux/gpio/consumer.h | 47 | ||||
| -rw-r--r-- | include/linux/gpio/driver.h | 20 |
2 files changed, 60 insertions, 7 deletions
diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h index 12f146fa6604..fd85cb120ee0 100644 --- a/include/linux/gpio/consumer.h +++ b/include/linux/gpio/consumer.h @@ -66,7 +66,7 @@ __devm_gpiod_get_index_optional(struct device *dev, const char *con_id, unsigned int index, enum gpiod_flags flags); void devm_gpiod_put(struct device *dev, struct gpio_desc *desc); -int gpiod_get_direction(const struct gpio_desc *desc); +int gpiod_get_direction(struct gpio_desc *desc); int gpiod_direction_input(struct gpio_desc *desc); int gpiod_direction_output(struct gpio_desc *desc, int value); int gpiod_direction_output_raw(struct gpio_desc *desc, int value); @@ -74,14 +74,24 @@ int gpiod_direction_output_raw(struct gpio_desc *desc, int value); /* Value get/set from non-sleeping context */ int gpiod_get_value(const struct gpio_desc *desc); void gpiod_set_value(struct gpio_desc *desc, int value); +void gpiod_set_array(unsigned int array_size, + struct gpio_desc **desc_array, int *value_array); int gpiod_get_raw_value(const struct gpio_desc *desc); void gpiod_set_raw_value(struct gpio_desc *desc, int value); +void gpiod_set_raw_array(unsigned int array_size, + struct gpio_desc **desc_array, int *value_array); /* Value get/set from sleeping context */ int gpiod_get_value_cansleep(const struct gpio_desc *desc); void gpiod_set_value_cansleep(struct gpio_desc *desc, int value); +void gpiod_set_array_cansleep(unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array); int gpiod_get_raw_value_cansleep(const struct gpio_desc *desc); void gpiod_set_raw_value_cansleep(struct gpio_desc *desc, int value); +void gpiod_set_raw_array_cansleep(unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array); int gpiod_set_debounce(struct gpio_desc *desc, unsigned debounce); @@ -94,6 +104,13 @@ int gpiod_to_irq(const struct gpio_desc *desc); struct gpio_desc *gpio_to_desc(unsigned gpio); int desc_to_gpio(const struct gpio_desc *desc); +/* Child properties interface */ +struct fwnode_handle; + +struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode, + const char *propname); +struct gpio_desc *devm_get_gpiod_from_child(struct device *dev, + struct fwnode_handle *child); #else /* CONFIG_GPIOLIB */ static inline struct gpio_desc *__must_check __gpiod_get(struct device *dev, @@ -210,6 +227,13 @@ static inline void gpiod_set_value(struct gpio_desc *desc, int value) /* GPIO can never have been requested */ WARN_ON(1); } +static inline void gpiod_set_array(unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array) +{ + /* GPIO can never have been requested */ + WARN_ON(1); +} static inline int gpiod_get_raw_value(const struct gpio_desc *desc) { /* GPIO can never have been requested */ @@ -221,6 +245,13 @@ static inline void gpiod_set_raw_value(struct gpio_desc *desc, int value) /* GPIO can never have been requested */ WARN_ON(1); } +static inline void gpiod_set_raw_array(unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array) +{ + /* GPIO can never have been requested */ + WARN_ON(1); +} static inline int gpiod_get_value_cansleep(const struct gpio_desc *desc) { @@ -233,6 +264,13 @@ static inline void gpiod_set_value_cansleep(struct gpio_desc *desc, int value) /* GPIO can never have been requested */ WARN_ON(1); } +static inline void gpiod_set_array_cansleep(unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array) +{ + /* GPIO can never have been requested */ + WARN_ON(1); +} static inline int gpiod_get_raw_value_cansleep(const struct gpio_desc *desc) { /* GPIO can never have been requested */ @@ -245,6 +283,13 @@ static inline void gpiod_set_raw_value_cansleep(struct gpio_desc *desc, /* GPIO can never have been requested */ WARN_ON(1); } +static inline void gpiod_set_raw_array_cansleep(unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array) +{ + /* GPIO can never have been requested */ + WARN_ON(1); +} static inline int gpiod_set_debounce(struct gpio_desc *desc, unsigned debounce) { diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index e78a2373e374..c497c62889d1 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -32,6 +32,7 @@ struct seq_file; * @get: returns value for signal "offset"; for output signals this * returns either the value actually sensed, or zero * @set: assigns output value for signal "offset" + * @set_multiple: assigns output values for multiple signals defined by "mask" * @set_debounce: optional hook for setting debounce time for specified gpio in * interrupt triggered gpio chips * @to_irq: optional hook supporting non-static gpio_to_irq() mappings; @@ -56,6 +57,8 @@ struct seq_file; * as the chip access may sleep when e.g. reading out the IRQ status * registers. * @exported: flags if the gpiochip is exported for use from sysfs. Private. + * @irq_not_threaded: flag must be set if @can_sleep is set but the + * IRQs don't need to be threaded * * A gpio_chip can help platforms abstract various sources of GPIOs so * they can all be accessed through a common programing interface. @@ -87,6 +90,9 @@ struct gpio_chip { unsigned offset); void (*set)(struct gpio_chip *chip, unsigned offset, int value); + void (*set_multiple)(struct gpio_chip *chip, + unsigned long *mask, + unsigned long *bits); int (*set_debounce)(struct gpio_chip *chip, unsigned offset, unsigned debounce); @@ -101,11 +107,12 @@ struct gpio_chip { struct gpio_desc *desc; const char *const *names; bool can_sleep; + bool irq_not_threaded; bool exported; #ifdef CONFIG_GPIOLIB_IRQCHIP /* - * With CONFIG_GPIO_IRQCHIP we get an irqchip inside the gpiolib + * With CONFIG_GPIOLIB_IRQCHIP we get an irqchip inside the gpiolib * to handle IRQs for most practical cases. */ struct irq_chip *irqchip; @@ -141,13 +148,13 @@ extern const char *gpiochip_is_requested(struct gpio_chip *chip, /* add/remove chips */ extern int gpiochip_add(struct gpio_chip *chip); -extern int gpiochip_remove(struct gpio_chip *chip); +extern void gpiochip_remove(struct gpio_chip *chip); extern struct gpio_chip *gpiochip_find(void *data, int (*match)(struct gpio_chip *chip, void *data)); /* lock/unlock as IRQ */ -int gpio_lock_as_irq(struct gpio_chip *chip, unsigned int offset); -void gpio_unlock_as_irq(struct gpio_chip *chip, unsigned int offset); +int gpiochip_lock_as_irq(struct gpio_chip *chip, unsigned int offset); +void gpiochip_unlock_as_irq(struct gpio_chip *chip, unsigned int offset); struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc); @@ -164,9 +171,10 @@ int gpiochip_irqchip_add(struct gpio_chip *gpiochip, irq_flow_handler_t handler, unsigned int type); -#endif /* CONFIG_GPIO_IRQCHIP */ +#endif /* CONFIG_GPIOLIB_IRQCHIP */ -int gpiochip_request_own_desc(struct gpio_desc *desc, const char *label); +struct gpio_desc *gpiochip_request_own_desc(struct gpio_chip *chip, u16 hwnum, + const char *label); void gpiochip_free_own_desc(struct gpio_desc *desc); #else /* CONFIG_GPIOLIB */ |