Documentation/devicetree/bindings/media/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/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 <narmstrong@baylibre.com>
  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   hdmi-phandle:
  37     description: phandle to the HDMI controller
  38     allOf:
  39       - $ref: /schemas/types.yaml#/definitions/phandle
  40
  41 allOf:
  42   - if:
  43       properties:
  44         compatible:
  45           contains:
  46             enum:
  47               - amlogic,meson-gx-ao-cec
  48
  49     then:
  50       properties:
  51         clocks:
  52           items:
  53             - description: AO-CEC clock
  54
  55         clock-names:
  56           items:
  57             - const: core
  58
  59   - if:
  60       properties:
  61         compatible:
  62           contains:
  63             enum:
  64               - amlogic,meson-g12a-ao-cec
  65               - amlogic,meson-sm1-ao-cec
  66
  67     then:
  68       properties:
  69         clocks:
  70           items:
  71             - description: AO-CEC clock generator source
  72
  73         clock-names:
  74           items:
  75             - const: oscin
  76
  77 required:
  78   - compatible
  79   - reg
  80   - interrupts
  81   - hdmi-phandle
  82   - clocks
  83   - clock-names
  84
  85 additionalProperties: false
  86
  87 examples:
  88   - |
  89     cec_AO: cec@100 {
  90         compatible = "amlogic,meson-gx-ao-cec";
  91         reg = <0x0 0x00100 0x0 0x14>;
  92         interrupts = <199>;
  93         clocks = <&clkc_cec>;
  94         clock-names = "core";
  95         hdmi-phandle = <&hdmi_tx>;
  96     };