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     1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/mfd/ene-kb3930.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: ENE KB3930 Embedded Controller bindings
    8 
    9 description: |
   10   This binding describes the ENE KB3930 Embedded Controller attached to an
   11   I2C bus.
   12 
   13 maintainers:
   14   - Lubomir Rintel <lkundrak@v3.sk>
   15 
   16 properties:
   17   compatible:
   18     items:
   19       - enum:
   20           - dell,wyse-ariel-ec  # Dell Wyse Ariel board (3020)
   21       - const: ene,kb3930
   22   reg:
   23     maxItems: 1
   24 
   25   off-gpios:
   26     description: GPIO used with the shutdown protocol on Ariel
   27     maxItems: 2
   28 
   29   system-power-controller: true
   30 
   31 required:
   32   - compatible
   33   - reg
   34 
   35 additionalProperties: false
   36 
   37 examples:
   38   - |
   39     #include <dt-bindings/gpio/gpio.h>
   40 
   41     i2c {
   42       #address-cells = <1>;
   43       #size-cells = <0>;
   44 
   45       embedded-controller@58 {
   46         compatible = "dell,wyse-ariel-ec", "ene,kb3930";
   47         reg = <0x58>;
   48         system-power-controller;
   49 
   50         off-gpios = <&gpio 126 GPIO_ACTIVE_HIGH>,
   51                     <&gpio 127 GPIO_ACTIVE_HIGH>;
   52       };
   53     };
   54 
   55 ...
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