Hi, On Thu, Oct 03, 2019 at 10:28:11AM +0200, Jean-Jacques Hiblot wrote: > Add DT binding for led-backlight. > > Signed-off-by: Jean-Jacques Hiblot <jjhiblot@xxxxxx> > Reviewed-by: Daniel Thompson <daniel.thompson@xxxxxxxxxx> Reviewed-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx> -- Sebastian > --- > .../bindings/leds/backlight/led-backlight.txt | 28 +++++++++++++++++++ > 1 file changed, 28 insertions(+) > create mode 100644 Documentation/devicetree/bindings/leds/backlight/led-backlight.txt > > diff --git a/Documentation/devicetree/bindings/leds/backlight/led-backlight.txt b/Documentation/devicetree/bindings/leds/backlight/led-backlight.txt > new file mode 100644 > index 000000000000..4c7dfbe7f67a > --- /dev/null > +++ b/Documentation/devicetree/bindings/leds/backlight/led-backlight.txt > @@ -0,0 +1,28 @@ > +led-backlight bindings > + > +This binding is used to describe a basic backlight device made of LEDs. > +It can also be used to describe a backlight device controlled by the output of > +a LED driver. > + > +Required properties: > + - compatible: "led-backlight" > + - leds: a list of LEDs > + > +Optional properties: > + - brightness-levels: Array of distinct brightness levels. The levels must be > + in the range accepted by the underlying LED devices. > + This is used to translate a backlight brightness level > + into a LED brightness level. If it is not provided, the > + identity mapping is used. > + > + - default-brightness-level: The default brightness level. > + > +Example: > + > + backlight { > + compatible = "led-backlight"; > + > + leds = <&led1>, <&led2>; > + brightness-levels = <0 4 8 16 32 64 128 255>; > + default-brightness-level = <6>; > + }; > -- > 2.17.1 > > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/dri-devel
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