xref: /linux/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-hdmi.yaml (revision fc2d791a43d3880496d1c729b8bd74d2c19cb4e7) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra20-hdmi.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: NVIDIA Tegra HDMI Output Encoder
8
9maintainers:
10  - Thierry Reding <thierry.reding@gmail.com>
11  - Jon Hunter <jonathanh@nvidia.com>
12
13properties:
14  $nodename:
15    pattern: "^hdmi@[0-9a-f]+$"
16
17  compatible:
18    oneOf:
19      - enum:
20          - nvidia,tegra20-hdmi
21          - nvidia,tegra30-hdmi
22          - nvidia,tegra114-hdmi
23          - nvidia,tegra124-hdmi
24
25      - items:
26          - const: nvidia,tegra132-hdmi
27          - const: nvidia,tegra124-hdmi
28
29  reg:
30    maxItems: 1
31
32  interrupts:
33    maxItems: 1
34
35  clocks:
36    items:
37      - description: module clock
38      - description: parent clock
39
40  clock-names:
41    items:
42      - const: hdmi
43      - const: parent
44
45  resets:
46    items:
47      - description: module reset
48
49  reset-names:
50    items:
51      - const: hdmi
52
53  operating-points-v2: true
54
55  power-domains:
56    items:
57      - description: phandle to the core power domain
58
59  hdmi-supply:
60    description: supply for the +5V HDMI connector pin
61
62  vdd-supply:
63    description: regulator for supply voltage
64
65  pll-supply:
66    description: regulator for PLL
67
68  nvidia,ddc-i2c-bus:
69    description: phandle of an I2C controller used for DDC EDID
70      probing
71    $ref: /schemas/types.yaml#/definitions/phandle
72
73  nvidia,hpd-gpio:
74    description: specifies a GPIO used for hotplug detection
75    maxItems: 1
76
77  nvidia,edid:
78    description: supplies a binary EDID blob
79    $ref: /schemas/types.yaml#/definitions/uint8-array
80
81  nvidia,panel:
82    description: phandle of a display panel
83    $ref: /schemas/types.yaml#/definitions/phandle
84
85  port:
86    description: HDMI output port for connection to HDMI connector or bridge
87    $ref: /schemas/graph.yaml#/properties/port
88
89  "#sound-dai-cells":
90    const: 0
91
92additionalProperties: false
93
94required:
95  - compatible
96  - reg
97  - interrupts
98  - clocks
99  - clock-names
100  - resets
101  - reset-names
102  - pll-supply
103  - vdd-supply
104
105anyOf:
106  - required:
107      - nvidia,ddc-i2c-bus
108      - nvidia,hpd-gpio
109  - required:
110      - port
111
112examples:
113  - |
114    #include <dt-bindings/clock/tegra124-car.h>
115    #include <dt-bindings/interrupt-controller/arm-gic.h>
116    #include <dt-bindings/gpio/tegra-gpio.h>
117
118    hdmi@54280000 {
119        compatible = "nvidia,tegra124-hdmi";
120        reg = <0x54280000 0x00040000>;
121        interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
122        clocks = <&tegra_car TEGRA124_CLK_HDMI>,
123                 <&tegra_car TEGRA124_CLK_PLL_D2_OUT0>;
124        clock-names = "hdmi", "parent";
125        resets = <&tegra_car 51>;
126        reset-names = "hdmi";
127
128        hdmi-supply = <&vdd_5v0_hdmi>;
129        pll-supply = <&vdd_hdmi_pll>;
130        vdd-supply = <&vdd_3v3_hdmi>;
131
132        nvidia,ddc-i2c-bus = <&hdmi_ddc>;
133        nvidia,hpd-gpio = <&gpio TEGRA_GPIO(N, 7) GPIO_ACTIVE_HIGH>;
134    };
135