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   1 From 5c7f8ffe741daae7f8d811a2037b2693f02c90c5 Mon Sep 17 00:00:00 2001
   2 From: Dan Murphy <dmurphy@ti.com>
   3 Date: Mon, 13 Jul 2020 10:45:31 -0500
   4 Subject: [PATCH] dt: bindings: Add multicolor class dt bindings documention
   5 MIME-Version: 1.0
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   8
   9 Add DT bindings for the LEDs multicolor class framework.
  10 Add multicolor ID to the color ID list for device tree bindings.
  11
  12 CC: Rob Herring <robh@kernel.org>
  13 Reviewed-by: Rob Herring <robh@kernel.org>
  14 Acked-by: Pavel Machek <pavel@ucw.cz>
  15 Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
  16 Signed-off-by: Dan Murphy <dmurphy@ti.com>
  17 Reviewed-by: Marek Behún <marek.behun@nic.cz>
  18 Signed-off-by: Pavel Machek <pavel@ucw.cz>
  19 ---
  20  .../bindings/leds/leds-class-multicolor.yaml  | 37 +++++++++++++++++++
  21  include/dt-bindings/leds/common.h             |  3 +-
  22  2 files changed, 39 insertions(+), 1 deletion(-)
  23  create mode 100644 Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml
  24
  25 --- /dev/null
  26 +++ b/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml
  27 @@ -0,0 +1,37 @@
  28 +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
  29 +%YAML 1.2
  30 +---
  31 +$id: http://devicetree.org/schemas/leds/leds-class-multicolor.yaml#
  32 +$schema: http://devicetree.org/meta-schemas/core.yaml#
  33 +
  34 +title: Common properties for the multicolor LED class.
  35 +
  36 +maintainers:
  37 +  - Dan Murphy <dmurphy@ti.com>
  38 +
  39 +description: |
  40 +  Bindings for multi color LEDs show how to describe current outputs of
  41 +  either integrated multi-color LED elements (like RGB, RGBW, RGBWA-UV
  42 +  etc.) or standalone LEDs, to achieve logically grouped multi-color LED
  43 +  modules. This is achieved by adding multi-led nodes layer to the
  44 +  monochrome LED bindings.
  45 +  The nodes and properties defined in this document are unique to the multicolor
  46 +  LED class.  Common LED nodes and properties are inherited from the common.txt
  47 +  within this documentation directory.
  48 +
  49 +patternProperties:
  50 +  "^multi-led@([0-9a-f])$":
  51 +    type: object
  52 +    description: Represents the LEDs that are to be grouped.
  53 +    properties:
  54 +      color:
  55 +        const: 8  # LED_COLOR_ID_MULTI
  56 +        description: |
  57 +          For multicolor LED support this property should be defined as
  58 +          LED_COLOR_ID_MULTI which can be found in include/linux/leds/common.h.
  59 +
  60 +    $ref: "common.yaml#"
  61 +
  62 +    required:
  63 +      - color
  64 +...
  65 --- a/include/dt-bindings/leds/common.h
  66 +++ b/include/dt-bindings/leds/common.h
  67 @@ -29,7 +29,8 @@
  68  #define LED_COLOR_ID_VIOLET    5
  69  #define LED_COLOR_ID_YELLOW    6
  70  #define LED_COLOR_ID_IR                7
  71 -#define LED_COLOR_ID_MAX       8
  72 +#define LED_COLOR_ID_MULTI     8
  73 +#define LED_COLOR_ID_MAX       9
  74
  75  /* Standard LED functions */
  76  #define LED_FUNCTION_ACTIVITY "activity"