When leds-pwm is active_low, smaller number of duty kept in led_dat means less brighness, so we should disable pwm when led_dat->duty is equal to period instead of zero, which means max_brightness. Signed-off-by: Yisheng Xie <ysxie@xxxxxxxxxxx> --- drivers/leds/leds-pwm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c index df80c89..07fb772 100644 --- a/drivers/leds/leds-pwm.c +++ b/drivers/leds/leds-pwm.c @@ -41,7 +41,7 @@ static void __led_pwm_set(struct led_pwm_data *led_dat) pwm_config(led_dat->pwm, new_duty, led_dat->period); - if (new_duty == 0) + if (led_dat->active_low ? new_duty == led_dat->period : new_duty == 0) pwm_disable(led_dat->pwm); else pwm_enable(led_dat->pwm); -- 1.9.1
