From ae1f74da7c5a6bed3b9573a44e66f8ebbadefbbd Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Wed, 19 Aug 2020 22:51:48 +0200 Subject: [PATCH] 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 Signed-off-by: Linus Walleij Reviewed-by: Daniel Thompson Reviewed-by: Rob Herring Signed-off-by: Lee Jones --- .../devicetree/bindings/leds/backlight/common.yaml | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/backlight/common.yaml 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 + - Daniel Thompson + - Jingoo Han + +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 -- 2.11.0