The PWM period will be set when calling pwm_config. Remove this useless call to pwm_set_period(), which might mess up with the internal PWM state.
Signed-off-by: Boris Brezillon boris.brezillon@free-electrons.com Acked-by: Lee Jones lee.jones@linaro.org --- drivers/video/backlight/pwm_bl.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c index 64f9e1b..a33a290 100644 --- a/drivers/video/backlight/pwm_bl.c +++ b/drivers/video/backlight/pwm_bl.c @@ -313,10 +313,8 @@ static int pwm_backlight_probe(struct platform_device *pdev) * via the PWM lookup table. */ pb->period = pwm_get_period(pb->pwm); - if (!pb->period && (data->pwm_period_ns > 0)) { + if (!pb->period && (data->pwm_period_ns > 0)) pb->period = data->pwm_period_ns; - pwm_set_period(pb->pwm, data->pwm_period_ns); - }
pb->lth_brightness = data->lth_brightness * (pb->period / pb->scale);