regulator_led
struct regulator_led *led;
struct regulator_led *led = platform_get_drvdata(pdev);
container_of(led_cdev, struct regulator_led, cdev)
static void regulator_led_enable(struct regulator_led *led)
static void regulator_led_disable(struct regulator_led *led)
struct regulator_led *led = to_regulator_led(led_cdev);