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dt: bindings: Add multicolor class dt bindings documention

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Add DT bindings for the LEDs multicolor class framework.
Add multicolor ID to the color ID list for device tree bindings.

CC: Rob Herring <robh@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
This commit is contained in:
Dan Murphy 2020-07-13 10:45:31 -05:00 committed by Pavel Machek
parent 7105e4647b
commit 5c7f8ffe74
2 changed files with 39 additions and 1 deletions
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37
Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml Normal file
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@ -0,0 +1,37 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/leds/leds-class-multicolor.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Common properties for the multicolor LED class.
maintainers:
- Dan Murphy <dmurphy@ti.com>
description: |
Bindings for multi color LEDs show how to describe current outputs of
either integrated multi-color LED elements (like RGB, RGBW, RGBWA-UV
etc.) or standalone LEDs, to achieve logically grouped multi-color LED
modules. This is achieved by adding multi-led nodes layer to the
monochrome LED bindings.
The nodes and properties defined in this document are unique to the multicolor
LED class. Common LED nodes and properties are inherited from the common.txt
within this documentation directory.
patternProperties:
"^multi-led@([0-9a-f])$":
type: object
description: Represents the LEDs that are to be grouped.
properties:
color:
const: 8 # LED_COLOR_ID_MULTI
description: |
For multicolor LED support this property should be defined as
LED_COLOR_ID_MULTI which can be found in include/linux/leds/common.h.
$ref: "common.yaml#"
required:
- color
...

3
include/dt-bindings/leds/common.h
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@ -30,7 +30,8 @@
#define LED_COLOR_ID_VIOLET 5
#define LED_COLOR_ID_YELLOW 6
#define LED_COLOR_ID_IR 7
#define LED_COLOR_ID_MAX 8
#define LED_COLOR_ID_MULTI 8
#define LED_COLOR_ID_MAX 9
/* Standard LED functions */
/* Keyboard LEDs, usually it would be input4::capslock etc. */