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 };
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