Commit 13344f8c authored by Rafał Miłecki's avatar Rafał Miłecki Committed by Pavel Machek
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dt-bindings: leds: add Broadcom's BCM63138 controller 



Broadcom used 2 LEDs hardware blocks for their BCM63xx SoCs:
1. Older one (BCM6318, BCM6328, BCM6362, BCM63268, BCM6838)
2. Newer one (BCM6848, BCM6858, BCM63138, BCM63148, BCM63381, BCM68360)

The newer one was also later also used on BCM4908 SoC.

Old block is already documented in the leds-bcm6328.yaml. This binding
documents the new one which uses different registers & programming. It's
first used in BCM63138 thus the binding name.

Signed-off-by: default avatarRafał Miłecki <rafal@milecki.pl>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarPavel Machek <pavel@ucw.cz>
parent 9b60b675

Documentation/devicetree/bindings/leds/leds-bcm63138.yaml

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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause

%YAML 1.2

---

$id: http://devicetree.org/schemas/leds/leds-bcm63138.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Broadcom's BCM63138 LEDs controller



maintainers:

  - Rafał Miłecki <rafal@milecki.pl>



description: |

  This LEDs controller was first used on BCM63138 and later reused on BCM4908,

  BCM6848, BCM6858, BCM63138, BCM63148, BCM63381 and BCM68360 SoCs.



  It supports up to 32 LEDs that can be connected parallelly or serially. It

  also includes limited support for hardware blinking.



  Binding serially connected LEDs isn't documented yet.



properties:

  compatible:

    oneOf:

      - items:

          - enum:

              - brcm,bcm4908-leds

              - brcm,bcm6848-leds

              - brcm,bcm6858-leds

              - brcm,bcm63148-leds

              - brcm,bcm63381-leds

              - brcm,bcm68360-leds

          - const: brcm,bcm63138-leds

      - const: brcm,bcm63138-leds



  reg:

    maxItems: 1



  "#address-cells":

    const: 1



  "#size-cells":

    const: 0



patternProperties:

  "^led@[a-f0-9]+$":

    type: object



    $ref: common.yaml#



    properties:

      reg:

        maxItems: 1

        description: LED pin number



      active-low:

        type: boolean

        description: Makes LED active low.



    required:

      - reg



    unevaluatedProperties: false



required:

  - reg

  - "#address-cells"

  - "#size-cells"



additionalProperties: false



examples:

  - |

    #include <dt-bindings/leds/common.h>



    leds@ff800800 {

        compatible = "brcm,bcm4908-leds", "brcm,bcm63138-leds";

        reg = <0xff800800 0xdc>;



        #address-cells = <1>;

        #size-cells = <0>;



        led@0 {

            reg = <0x0>;

            function = LED_FUNCTION_POWER;

            color = <LED_COLOR_ID_GREEN>;

            default-state = "on";

        };



        led@3 {

            reg = <0x3>;

            function = LED_FUNCTION_STATUS;

            color = <LED_COLOR_ID_GREEN>;

            active-low;

        };

    };