Documentation/devicetree/bindings/mfd/khadas,mcu.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/mfd/khadas,mcu.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Khadas on-board Microcontroller Device Tree Bindings
   8
   9 maintainers:
  10   - Neil Armstrong <neil.armstrong@linaro.org>
  11
  12 description: |
  13   Khadas embeds a microcontroller on their VIM and Edge boards adding some
  14   system feature as PWM Fan control (for VIM2 rev14 or VIM3), User memory
  15   storage, IR/Key resume control, system power LED control and more.
  16
  17 properties:
  18   compatible:
  19     enum:
  20       - khadas,mcu # MCU revision is discoverable
  21
  22   "#cooling-cells": # Only needed for boards having FAN control feature
  23     const: 2
  24
  25   reg:
  26     maxItems: 1
  27
  28 required:
  29   - compatible
  30   - reg
  31
  32 additionalProperties: false
  33
  34 examples:
  35   - |
  36     i2c {
  37       #address-cells = <1>;
  38       #size-cells = <0>;
  39       khadas_mcu: system-controller@18 {
  40         compatible = "khadas,mcu";
  41         reg = <0x18>;
  42         #cooling-cells = <2>;
  43       };
  44     };