diff options
Diffstat (limited to 'drivers/leds/led-class.c')
| -rw-r--r-- | drivers/leds/led-class.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c index e663e6f413e9..81eb0916b44a 100644 --- a/drivers/leds/led-class.c +++ b/drivers/leds/led-class.c @@ -86,6 +86,11 @@ static void led_timer_function(unsigned long data) return; } + if (led_cdev->flags & LED_BLINK_ONESHOT_STOP) { + led_cdev->flags &= ~LED_BLINK_ONESHOT_STOP; + return; + } + brightness = led_get_brightness(led_cdev); if (!brightness) { /* Time to switch the LED on. */ @@ -102,6 +107,20 @@ static void led_timer_function(unsigned long data) led_set_brightness(led_cdev, brightness); + /* Return in next iteration if led is in one-shot mode and we are in + * the final blink state so that the led is toggled each delay_on + + * delay_off milliseconds in worst case. + */ + if (led_cdev->flags & LED_BLINK_ONESHOT) { + if (led_cdev->flags & LED_BLINK_INVERT) { + if (brightness) + led_cdev->flags |= LED_BLINK_ONESHOT_STOP; + } else { + if (!brightness) + led_cdev->flags |= LED_BLINK_ONESHOT_STOP; + } + } + mod_timer(&led_cdev->blink_timer, jiffies + msecs_to_jiffies(delay)); } |