xref: /linux/Documentation/devicetree/bindings/display/imx/fsl,imx6-hdmi.yaml (revision 72bea132f3680ee51e7ed2cee62892b6f5121909) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/display/imx/fsl,imx6-hdmi.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Freescale i.MX6 DWC HDMI TX Encoder
8
9maintainers:
10  - Philipp Zabel <p.zabel@pengutronix.de>
11
12description: |
13  The HDMI transmitter is a Synopsys DesignWare HDMI 1.4 TX controller IP
14  with a companion PHY IP.
15
16allOf:
17  - $ref: ../bridge/synopsys,dw-hdmi.yaml#
18
19properties:
20  compatible:
21    enum:
22      - fsl,imx6dl-hdmi
23      - fsl,imx6q-hdmi
24
25  reg-io-width:
26    const: 1
27
28  clocks:
29    maxItems: 2
30
31  clock-names:
32    maxItems: 2
33
34  ddc-i2c-bus:
35    $ref: /schemas/types.yaml#/definitions/phandle
36    description:
37      The HDMI DDC bus can be connected to either a system I2C master or the
38      functionally-reduced I2C master contained in the DWC HDMI. When connected
39      to a system I2C master this property contains a phandle to that I2C
40      master controller.
41
42  gpr:
43    $ref: /schemas/types.yaml#/definitions/phandle
44    description:
45      phandle to the iomuxc-gpr region containing the HDMI multiplexer control
46      register.
47
48  ports:
49    $ref: /schemas/graph.yaml#/properties/ports
50    description: |
51      This device has four video ports, corresponding to the four inputs of the
52      HDMI multiplexer. Each port shall have a single endpoint.
53
54    properties:
55      port@0:
56        $ref: /schemas/graph.yaml#/properties/port
57        description: First input of the HDMI multiplexer
58
59      port@1:
60        $ref: /schemas/graph.yaml#/properties/port
61        description: Second input of the HDMI multiplexer
62
63      port@2:
64        $ref: /schemas/graph.yaml#/properties/port
65        description: Third input of the HDMI multiplexer
66
67      port@3:
68        $ref: /schemas/graph.yaml#/properties/port
69        description: Fourth input of the HDMI multiplexer
70
71    anyOf:
72      - required:
73          - port@0
74      - required:
75          - port@1
76      - required:
77          - port@2
78      - required:
79          - port@3
80
81required:
82  - compatible
83  - reg
84  - clocks
85  - clock-names
86  - gpr
87  - interrupts
88  - ports
89
90unevaluatedProperties: false
91
92examples:
93  - |
94    #include <dt-bindings/clock/imx6qdl-clock.h>
95
96    hdmi: hdmi@120000 {
97        reg = <0x00120000 0x9000>;
98        interrupts = <0 115 0x04>;
99        gpr = <&gpr>;
100        clocks = <&clks IMX6QDL_CLK_HDMI_IAHB>,
101                 <&clks IMX6QDL_CLK_HDMI_ISFR>;
102        clock-names = "iahb", "isfr";
103
104        ports {
105            #address-cells = <1>;
106            #size-cells = <0>;
107
108            port@0 {
109                reg = <0>;
110
111                hdmi_mux_0: endpoint {
112                    remote-endpoint = <&ipu1_di0_hdmi>;
113                };
114            };
115
116            port@1 {
117                reg = <1>;
118
119                hdmi_mux_1: endpoint {
120                    remote-endpoint = <&ipu1_di1_hdmi>;
121                };
122            };
123        };
124    };
125
126...
127