diff options
Diffstat (limited to 'drivers/leds')
| -rw-r--r-- | drivers/leds/led-class.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c index f704391d57a8..f4bb02f6e042 100644 --- a/drivers/leds/led-class.c +++ b/drivers/leds/led-class.c @@ -350,10 +350,15 @@ int led_classdev_register_ext(struct device *parent, if (ret < 0) return ret; - if (init_data->fwnode) + if (init_data->fwnode) { fwnode_property_read_string(init_data->fwnode, "linux,default-trigger", &led_cdev->default_trigger); + + if (fwnode_property_present(init_data->fwnode, + "retain-state-shutdown")) + led_cdev->flags |= LED_RETAIN_AT_SHUTDOWN; + } } else { proposed_name = led_cdev->name; } @@ -444,7 +449,8 @@ void led_classdev_unregister(struct led_classdev *led_cdev) /* Stop blinking */ led_stop_software_blink(led_cdev); - led_set_brightness(led_cdev, LED_OFF); + if (!(led_cdev->flags & LED_RETAIN_AT_SHUTDOWN)) + led_set_brightness(led_cdev, LED_OFF); flush_work(&led_cdev->set_brightness_work); |