[PATCH] leds: pwm: fix max_brightness works abnormal when active_low

Yisheng Xie
2019-02-10T12:45:42Z

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@foxmail.com>
---
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