Documentation/devicetree/bindings/display/imx/fsl,imx6-hdmi.yaml

   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
   7 title: Freescale i.MX6 DWC HDMI TX Encoder
   8
   9 maintainers:
  10   - Philipp Zabel <p.zabel@pengutronix.de>
  11
  12 description: |
  13   The HDMI transmitter is a Synopsys DesignWare HDMI 1.4 TX controller IP
  14   with a companion PHY IP.
  15
  16 allOf:
  17   - $ref: ../bridge/synopsys,dw-hdmi.yaml#
  18
  19 properties:
  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
  81 required:
  82   - compatible
  83   - reg
  84   - clocks
  85   - clock-names
  86   - gpr
  87   - interrupts
  88   - ports
  89
  90 additionalProperties: false
  91
  92 examples:
  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 ...