BCM54XX_SHD_LEDS_SHIFT
ret &= ~(BCM_LED_SRC_MASK << BCM54XX_SHD_LEDS_SHIFT(led_num));
ret |= BCM_LED_SRC_OFF << BCM54XX_SHD_LEDS_SHIFT(led_num);
ret |= BCM_LED_SRC_ON << BCM54XX_SHD_LEDS_SHIFT(led_num);