Hi,
On 6/27/19 9:56 PM, marvi...@posteo.de wrote:
Am Freitag, 21. Juni 2019, 22:01:35 CEST schrieb Marc Dietrich:
Fixes: 57e7775413 ("video: backlight: Parse PWM polarity cell")
set_pwm will always fail if pwm_set_invert is not implemented, leaving the
backlight dark. Fix this by calling pwm_set_invert only if pwm is inverted.
I'm not sure if this is true. pwm_set_invert() checks for .set_invert.
Which pwm driver you're using?
Signed-off-by: Marc Dietrich <marvi...@gmx.de>
ping?
---
drivers/video/pwm_backlight.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/video/pwm_backlight.c b/drivers/video/pwm_backlight.c
index a587977c22..26bcbeb42b 100644
--- a/drivers/video/pwm_backlight.c
+++ b/drivers/video/pwm_backlight.c
@@ -61,12 +61,13 @@ static int set_pwm(struct pwm_backlight_priv *priv)
duty_cycle = priv->period_ns * (priv->cur_level - priv->min_level) /
(priv->max_level - priv->min_level + 1);
+
ret = pwm_set_config(priv->pwm, priv->channel, priv->period_ns,
duty_cycle);
- if (ret)
- return log_ret(ret);
- ret = pwm_set_invert(priv->pwm, priv->channel, priv->polarity);
+ if (!ret && priv->polarity)
+ ret = pwm_set_invert(priv->pwm, priv->channel, priv->polarity);
This shouldn't be a problem. Rather the driver doesn't handle polarity
correctly.
+
return log_ret(ret);
}
--
2.17.1
P.S.
You should cc to all maintainers. You can use ./scripts/get_maintainer.pl.
Best regards,
Stefan Mavrodiev
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot
