diff options
Diffstat (limited to 'drivers/gpio/gpiolib.h')
| -rw-r--r-- | drivers/gpio/gpiolib.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h index 4de0bf1a62d3..067197d61d57 100644 --- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -89,9 +89,21 @@ static inline struct gpio_device *to_gpio_device(struct device *dev) return container_of(dev, struct gpio_device, dev); } -/* gpio suffixes used for ACPI and device tree lookup */ +/* GPIO suffixes used for ACPI and device tree lookup */ extern const char *const gpio_suffixes[]; -extern const size_t gpio_suffix_count; + +#define for_each_gpio_property_name(propname, con_id) \ + for (const char * const *__suffixes = gpio_suffixes; \ + *__suffixes && ({ \ + const char *__gs = *__suffixes; \ + \ + if (con_id) \ + snprintf(propname, sizeof(propname), "%s-%s", con_id, __gs); \ + else \ + snprintf(propname, sizeof(propname), "%s", __gs); \ + 1; \ + }); \ + __suffixes++) /** * struct gpio_array - Opaque descriptor for a structure of GPIO array attributes |