amlogic,meson-gx-ao-cec.yaml

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

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sys/contrib/device-tree/Bindings/media/amlogic,meson-gx-ao-cec.yaml