Commit 393d56d4 authored by Steffen Trumtrar's avatar Steffen Trumtrar Committed by Lee Jones
Browse files

dt-bindings: leds: Add LP5860 LED controller 



The LP5860 is a LED matrix driver with 18 constant current sinks and 11
scan switches for 198 LED dots:

  * Supply range from 2.7 V to 5.5 V
  * 0.1mA - 50mA per current sink
  * 1MHz I2C and 12MHz SPI control interface
  * 8-bit analog dimming
  * 8/16-bit PWM dimming
  * individual ON and OFF control for each LED dot
  * globat 3-bit Maximum Current setting for all LED dots
  * individual LED dot open/short detection

Signed-off-by: default avatarSteffen Trumtrar <s.trumtrar@pengutronix.de>
Reviewed-by: default avatarRob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251201-v6-14-topic-ti-lp5860-v6-1-be9a21218157@pengutronix.de


Signed-off-by: default avatarLee Jones <lee@kernel.org>
parent 101bc85a

Documentation/devicetree/bindings/leds/leds-lp5860.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-lp5860.yaml#

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



title: LED driver for LP5860 RGB LED from Texas Instruments.



maintainers:

  - Steffen Trumtrar <kernel@pengutronix.de>



description: |

  The LP5860 is multi-channel, I2C and SPI RGB LED Driver that can group RGB LEDs

  into a LED group or control them individually.



  For more product information please see the link below:

  https://www.ti.com/lit/ds/symlink/lp5860.pdf



allOf:

  - $ref: /schemas/spi/spi-peripheral-props.yaml#



properties:

  compatible:

    enum:

      - ti,lp5860



  reg:

    maxItems: 1



  '#address-cells':

    const: 1



  '#size-cells':

    const: 0



patternProperties:

  '^multi-led@[0-9a-f]+$':

    type: object

    $ref: leds-class-multicolor.yaml#

    unevaluatedProperties: false



    properties:

      reg:

        minimum: 0

        maximum: 198

        description:

          This property denotes the LED module number that is used

          for the child node.



      '#address-cells':

        const: 1



      '#size-cells':

        const: 0



    patternProperties:

      "^led@[0-9a-f]+$":

        type: object

        $ref: common.yaml#

        unevaluatedProperties: false



        properties:

          reg:

            maxItems: 1



        required:

          - reg



required:

  - compatible

  - reg



unevaluatedProperties: false



examples:

  - |

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



    spi {

        #address-cells = <1>;

        #size-cells = <0>;



        led-controller@0 {

            compatible = "ti,lp5860";

            reg = <0x0>;

            #address-cells = <1>;

            #size-cells = <0>;



            multi-led@0 {

                #address-cells = <1>;

                #size-cells = <0>;

                reg = <0x0>;

                color = <LED_COLOR_ID_RGB>;



                led@0 {

                     reg = <0x0>;

                     color = <LED_COLOR_ID_RED>;

                };



                led@1 {

                     reg = <0x1>;

                     color = <LED_COLOR_ID_GREEN>;

                };



                led@2 {

                     reg = <0x2>;

                     color = <LED_COLOR_ID_BLUE>;

                };

            };

        };

    };