diff options
Diffstat (limited to 'include/asm-generic')
| -rw-r--r-- | include/asm-generic/gpio.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index a6e52a0..60539d8 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -79,11 +79,15 @@ int gpio_get_value(unsigned gpio); */ int gpio_set_value(unsigned gpio, int value); -/* State of a GPIO, as reported by get_state() */ +/* State of a GPIO, as reported by get_function() */ enum { GPIOF_INPUT = 0, GPIOF_OUTPUT, - GPIOF_UNKNOWN, + GPIOF_UNUSED, /* Not claimed */ + GPIOF_UNKNOWN, /* Not known */ + GPIOF_FUNC, /* Not used as a GPIO */ + + GPIOF_COUNT, }; struct udevice; @@ -123,6 +127,13 @@ struct dm_gpio_ops { int value); int (*get_value)(struct udevice *dev, unsigned offset); int (*set_value)(struct udevice *dev, unsigned offset, int value); + /** + * get_function() Get the GPIO function + * + * @dev: Device to check + * @offset: GPIO offset within that device + * @return current function - GPIOF_... + */ int (*get_function)(struct udevice *dev, unsigned offset); int (*get_state)(struct udevice *dev, unsigned offset, char *state, int maxlen); |