devm_gpiod_get_index_optional  256 drivers/gpio/gpiolib-devres.c struct gpio_desc *__must_check devm_gpiod_get_index_optional(struct device *dev,
devm_gpiod_get_index_optional  286 include/linux/gpio/consumer.h devm_gpiod_get_index_optional(struct device *dev, const char *con_id,