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Add DT binding for led-backlight. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
29 lines
882 B
Plaintext
29 lines
882 B
Plaintext
led-backlight bindings
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This binding is used to describe a basic backlight device made of LEDs.
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It can also be used to describe a backlight device controlled by the output of
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a LED driver.
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Required properties:
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- compatible: "led-backlight"
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- leds: a list of LEDs
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Optional properties:
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- brightness-levels: Array of distinct brightness levels. The levels must be
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in the range accepted by the underlying LED devices.
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This is used to translate a backlight brightness level
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into a LED brightness level. If it is not provided, the
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identity mapping is used.
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- default-brightness-level: The default brightness level.
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Example:
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backlight {
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compatible = "led-backlight";
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leds = <&led1>, <&led2>;
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brightness-levels = <0 4 8 16 32 64 128 255>;
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default-brightness-level = <6>;
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};
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