xref: /linux/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml (revision 26fbb4c8c7c3ee9a4c3b4de555a8587b5a19154e) 
1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/display/brcm,bcm2711-hdmi.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Broadcom BCM2711 HDMI Controller Device Tree Bindings
8
9maintainers:
10  - Eric Anholt <eric@anholt.net>
11
12properties:
13  compatible:
14    enum:
15      - brcm,bcm2711-hdmi0
16      - brcm,bcm2711-hdmi1
17
18  reg:
19    items:
20      - description: HDMI controller register range
21      - description: DVP register range
22      - description: HDMI PHY register range
23      - description: Rate Manager register range
24      - description: Packet RAM register range
25      - description: Metadata RAM register range
26      - description: CSC register range
27      - description: CEC register range
28      - description: HD register range
29
30  reg-names:
31    items:
32      - const: hdmi
33      - const: dvp
34      - const: phy
35      - const: rm
36      - const: packet
37      - const: metadata
38      - const: csc
39      - const: cec
40      - const: hd
41
42  clocks:
43    items:
44      - description: The HDMI state machine clock
45      - description: The Pixel BVB clock
46      - description: The HDMI Audio parent clock
47      - description: The HDMI CEC parent clock
48
49  clock-names:
50    items:
51      - const: hdmi
52      - const: bvb
53      - const: audio
54      - const: cec
55
56  ddc:
57    allOf:
58      - $ref: /schemas/types.yaml#/definitions/phandle
59    description: >
60      Phandle of the I2C controller used for DDC EDID probing
61
62  hpd-gpios:
63    description: >
64      The GPIO pin for the HDMI hotplug detect (if it doesn't appear
65      as an interrupt/status bit in the HDMI controller itself)
66
67  dmas:
68    maxItems: 1
69    description: >
70      Should contain one entry pointing to the DMA channel used to
71      transfer audio data.
72
73  dma-names:
74    const: audio-rx
75
76  resets:
77    maxItems: 1
78
79  wifi-2.4ghz-coexistence:
80    type: boolean
81    description: >
82      Should the pixel frequencies in the WiFi frequencies range be
83      avoided?
84
85required:
86  - compatible
87  - reg
88  - reg-names
89  - clocks
90  - resets
91  - ddc
92
93additionalProperties: false
94
95examples:
96  - |
97    hdmi0: hdmi@7ef00700 {
98        compatible = "brcm,bcm2711-hdmi0";
99        reg = <0x7ef00700 0x300>,
100              <0x7ef00300 0x200>,
101              <0x7ef00f00 0x80>,
102              <0x7ef00f80 0x80>,
103              <0x7ef01b00 0x200>,
104              <0x7ef01f00 0x400>,
105              <0x7ef00200 0x80>,
106              <0x7ef04300 0x100>,
107              <0x7ef20000 0x100>;
108        reg-names = "hdmi",
109                    "dvp",
110                    "phy",
111                    "rm",
112                    "packet",
113                    "metadata",
114                    "csc",
115                    "cec",
116                    "hd";
117        clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 1>, <&clk_27MHz>;
118        clock-names = "hdmi", "bvb", "audio", "cec";
119        resets = <&dvp 0>;
120        ddc = <&ddc0>;
121    };
122
123...
124