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| author | Lucas Stach <l.stach@pengutronix.de> | 2018-06-20 11:47:49 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2018-06-21 12:57:13 +0200 |
| commit | 898ec202d06ccf89506b9f64bea438a1974b4687 (patch) | |
| tree | 886a5b17d1072579232be47e0304005aa618f1a5 /include | |
| parent | be940f1a513b5167963174eca1d9509aaddda2fe (diff) | |
| download | barebox-898ec202d06ccf89506b9f64bea438a1974b4687.tar.gz barebox-898ec202d06ccf89506b9f64bea438a1974b4687.tar.xz | |
video: backlight: add slew time parameter
Currently the backlight implementation stretches a brightness change over
a period of 100ms. While this is a fine default for PWM backlights, a user
might wish to change this slew time to meet other constraints or even
completely disable it for some backlight devices.
Add a parameter and provide the default value from the backlight device.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/video/backlight.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/video/backlight.h b/include/video/backlight.h index 8dc49dc113..afa384cc9a 100644 --- a/include/video/backlight.h +++ b/include/video/backlight.h @@ -7,6 +7,7 @@ struct backlight_device { int brightness_cur; int brightness_max; int brightness_default; + int slew_time_ms; /* time to stretch brightness changes */ int (*brightness_set)(struct backlight_device *, int brightness); struct list_head list; struct device_d dev; |