diff options
Diffstat (limited to 'drivers/leds')
| -rw-r--r-- | drivers/leds/leds-bcm6328.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/drivers/leds/leds-bcm6328.c b/drivers/leds/leds-bcm6328.c index 47f7c9f310be..1548259297c1 100644 --- a/drivers/leds/leds-bcm6328.c +++ b/drivers/leds/leds-bcm6328.c @@ -140,6 +140,18 @@ static void bcm6328_led_set(struct led_classdev *led_cdev, spin_unlock_irqrestore(led->lock, flags); } +static unsigned long bcm6328_blink_delay(unsigned long delay) +{ + unsigned long bcm6328_delay; + + bcm6328_delay = delay + BCM6328_LED_INTERVAL_MS / 2; + bcm6328_delay = bcm6328_delay / BCM6328_LED_INTERVAL_MS; + if (bcm6328_delay == 0) + bcm6328_delay = 1; + + return bcm6328_delay; +} + static int bcm6328_blink_set(struct led_classdev *led_cdev, unsigned long *delay_on, unsigned long *delay_off) { @@ -153,16 +165,14 @@ static int bcm6328_blink_set(struct led_classdev *led_cdev, if (!*delay_off) *delay_off = BCM6328_LED_DEF_DELAY; - if (*delay_on != *delay_off) { + delay = bcm6328_blink_delay(*delay_on); + if (delay != bcm6328_blink_delay(*delay_off)) { dev_dbg(led_cdev->dev, "fallback to soft blinking (delay_on != delay_off)\n"); return -EINVAL; } - delay = *delay_on / BCM6328_LED_INTERVAL_MS; - if (delay == 0) { - delay = 1; - } else if (delay > BCM6328_LED_INTV_MASK) { + if (delay > BCM6328_LED_INTV_MASK) { dev_dbg(led_cdev->dev, "fallback to soft blinking (delay > %ums)\n", BCM6328_LED_INTV_MASK * BCM6328_LED_INTERVAL_MS); |