diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/backlight/pwm_bl.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c index cc49347bbcc0..38ca88bc5c3e 100644 --- a/drivers/video/backlight/pwm_bl.c +++ b/drivers/video/backlight/pwm_bl.c @@ -296,12 +296,15 @@ static int pwm_backlight_probe(struct platform_device *pdev) /* * The DT case will set the pwm_period_ns field to 0 and store the * period, parsed from the DT, in the PWM device. For the non-DT case, - * set the period from platform data. + * set the period from platform data if it has not already been set + * via the PWM lookup table. */ - if (data->pwm_period_ns > 0) + pb->period = pwm_get_period(pb->pwm); + if (!pb->period && (data->pwm_period_ns > 0)) { + pb->period = data->pwm_period_ns; pwm_set_period(pb->pwm, data->pwm_period_ns); + } - pb->period = pwm_get_period(pb->pwm); pb->lth_brightness = data->lth_brightness * (pb->period / pb->scale); memset(&props, 0, sizeof(struct backlight_properties)); |