Documentation/devicetree/bindings/media/cec/amlogic,meson-gx-ao-cec.yaml

   1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
   2 # Copyright 2019 BayLibre, SAS
   3 %YAML 1.2
   4 ---
   5 $id: http://devicetree.org/schemas/media/cec/amlogic,meson-gx-ao-cec.yaml#
   6 $schema: http://devicetree.org/meta-schemas/core.yaml#
   7
   8 title: Amlogic Meson AO-CEC Controller
   9
  10 maintainers:
  11   - Neil Armstrong <neil.armstrong@linaro.org>
  12
  13 description: |
  14   The Amlogic Meson AO-CEC module is present is Amlogic SoCs and its purpose is
  15   to handle communication between HDMI connected devices over the CEC bus.
  16
  17 properties:
  18   compatible:
  19     enum:
  20       - amlogic,meson-gx-ao-cec # GXBB, GXL, GXM, G12A and SM1 AO_CEC_A module
  21       - amlogic,meson-g12a-ao-cec # G12A AO_CEC_B module
  22       - amlogic,meson-sm1-ao-cec # SM1 AO_CEC_B module
  23
  24   reg:
  25     maxItems: 1
  26
  27   clocks:
  28     maxItems: 1
  29
  30   clock-names:
  31     maxItems: 1
  32
  33   interrupts:
  34     maxItems: 1
  35
  36 allOf:
  37   - $ref: cec-common.yaml#
  38   - if:
  39       properties:
  40         compatible:
  41           contains:
  42             enum:
  43               - amlogic,meson-gx-ao-cec
  44
  45     then:
  46       properties:
  47         clocks:
  48           items:
  49             - description: AO-CEC clock
  50
  51         clock-names:
  52           items:
  53             - const: core
  54
  55   - if:
  56       properties:
  57         compatible:
  58           contains:
  59             enum:
  60               - amlogic,meson-g12a-ao-cec
  61               - amlogic,meson-sm1-ao-cec
  62
  63     then:
  64       properties:
  65         clocks:
  66           items:
  67             - description: AO-CEC clock generator source
  68
  69         clock-names:
  70           items:
  71             - const: oscin
  72
  73 required:
  74   - compatible
  75   - reg
  76   - interrupts
  77   - hdmi-phandle
  78   - clocks
  79   - clock-names
  80
  81 unevaluatedProperties: false
  82
  83 examples:
  84   - |
  85     cec_AO: cec@100 {
  86         compatible = "amlogic,meson-gx-ao-cec";
  87         reg = <0x00100 0x14>;
  88         interrupts = <199>;
  89         clocks = <&clkc_cec>;
  90         clock-names = "core";
  91         hdmi-phandle = <&hdmi_tx>;
  92     };