linux/Documentation/devicetree/bindings/leds/backlight/common.yaml
Linus Walleij ae1f74da7c 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>
2020-08-28 11:48:00 +01:00

35 lines
1.3 KiB
YAML

# 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