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   interrupts:
  28     maxItems: 1
  29
  30   hdmi-phandle:
  31     description: phandle to the HDMI controller
  32     allOf:
  33       - $ref: /schemas/types.yaml#/definitions/phandle
  34
  35 allOf:
  36   - if:
  37       properties:
  38         compatible:
  39           contains:
  40             enum:
  41               - amlogic,meson-gx-ao-cec
  42
  43     then:
  44       properties:
  45         clocks:
  46           items:
  47             - description: AO-CEC clock
  48
  49         clock-names:
  50           maxItems: 1
  51           items:
  52             - const: core
  53
  54   - if:
  55       properties:
  56         compatible:
  57           contains:
  58             enum:
  59               - amlogic,meson-g12a-ao-cec
  60               - amlogic,meson-sm1-ao-cec
  61
  62     then:
  63       properties:
  64         clocks:
  65           items:
  66             - description: AO-CEC clock generator source
  67
  68         clock-names:
  69           maxItems: 1
  70           items:
  71             - const: oscin
  72
  73 required:
  74   - compatible
  75   - reg
  76   - interrupts
  77   - hdmi-phandle
  78   - clocks
  79   - clock-names
  80
  81 examples:
  82   - |
  83     cec_AO: cec@100 {
  84         compatible = "amlogic,meson-gx-ao-cec";
  85         reg = <0x0 0x00100 0x0 0x14>;
  86         interrupts = <199>;
  87         clocks = <&clkc_cec>;
  88         clock-names = "core";
  89         hdmi-phandle = <&hdmi_tx>;
  90     };
  91