From: Heiko Stuebner <heiko.stuebner@xxxxxx> Commit 88ba95bedb79 ("backlight: pwm_bl: Compute brightness of LED linearly to human eye") made the parse-dt function return early when using an auto- generated brightness-table, but didn't take into account that some more settings were handled below the brightness handling, like power-on-delays and also setting the pdata enable-gpio to -EINVAL. This surfaces for example in the case of a backlight without any enable-gpio which then tries to use gpio-0 in error. Fix this by simply moving the trailing settings above the brightness handling. Fixes: 88ba95bedb79 ("backlight: pwm_bl: Compute brightness of LED linearly to human eye") Signed-off-by: Heiko Stuebner <heiko.stuebner@xxxxxx> --- drivers/video/backlight/pwm_bl.c | 19 ++++++++++--------- 1 file changed, 10 insertions(+), 9 deletions(-) diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c index bcd08b41765d..b7b5b31f3824 100644 --- a/drivers/video/backlight/pwm_bl.c +++ b/drivers/video/backlight/pwm_bl.c @@ -272,6 +272,16 @@ static int pwm_backlight_parse_dt(struct device *dev, memset(data, 0, sizeof(*data)); + /* + * These values are optional and set as 0 by default, the out values + * are modified only if a valid u32 value can be decoded. + */ + of_property_read_u32(node, "post-pwm-on-delay-ms", + &data->post_pwm_on_delay); + of_property_read_u32(node, "pwm-off-delay-ms", &data->pwm_off_delay); + + data->enable_gpio = -EINVAL; + /* * Determine the number of brightness levels, if this property is not * set a default table of brightness levels will be used. @@ -384,15 +394,6 @@ static int pwm_backlight_parse_dt(struct device *dev, data->max_brightness--; } - /* - * These values are optional and set as 0 by default, the out values - * are modified only if a valid u32 value can be decoded. - */ - of_property_read_u32(node, "post-pwm-on-delay-ms", - &data->post_pwm_on_delay); - of_property_read_u32(node, "pwm-off-delay-ms", &data->pwm_off_delay); - - data->enable_gpio = -EINVAL; return 0; } -- 2.18.0 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel