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| author | Linus Walleij <linus.walleij@linaro.org> | 2020-08-19 22:51:48 +0200 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2020-08-28 11:48:00 +0100 |
| commit | ae1f74da7c5a6bed3b9573a44e66f8ebbadefbbd (patch) | |
| tree | 0f8295cb1a779482aae6a7fca1dee595c916d3cc /Documentation/devicetree/bindings/leds/backlight | |
| parent | b7a4f80bc316a56d6ec8750e93e66f42431ed960 (diff) | |
dt-bindings: backlight: Add some common backlight properties
Let's use a common.yaml include for the backlight like we do with
the LEDs. The LEDs are inherently incompatible so their bindings
cannot be reused for backlight.
Cc: devicetree@vger.kernel.org
Suggested-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/leds/backlight')
| -rw-r--r-- | Documentation/devicetree/bindings/leds/backlight/common.yaml | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/leds/backlight/common.yaml b/Documentation/devicetree/bindings/leds/backlight/common.yaml new file mode 100644 index 000000000000..4e7e95e331a5 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/backlight/common.yaml @@ -0,0 +1,34 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/backlight/common.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Common backlight properties + +maintainers: + - Lee Jones <lee.jones@linaro.org> + - Daniel Thompson <daniel.thompson@linaro.org> + - Jingoo Han <jingoohan1@gmail.com> + +description: + Backlight devices provide backlight for different types of graphical + displays. They are typically but not necessarily implemented using a white + LED powered by a boost converter. + +properties: + default-brightness: + description: + The default brightness that should be applied to the LED by the operating + system on start-up. The brightness should not exceed the brightness the + LED can provide. + $ref: /schemas/types.yaml#definitions/uint32 + + max-brightness: + description: + Normally the maximum brightness is determined by the hardware and this + property is not required. This property is used to put a software limit + on the brightness apart from what the driver says, as it could happen + that a LED can be made so bright that it gets damaged or causes damage + due to restrictions in a specific system, such as mounting conditions. + $ref: /schemas/types.yaml#definitions/uint32 |