bindings/display/bridge/lontium,lt8912b.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/bridge/lontium,lt8912b.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Lontium LT8912B MIPI to HDMI Bridge
   8
   9 maintainers:
  10   - Adrien Grassein <adrien.grassein@gmail.com>
  11
  12 description: |
  13   The LT8912B is a bridge device which convert DSI to HDMI
  14
  15 properties:
  16   compatible:
  17     enum:
  18       - lontium,lt8912b
  19
  20   reg:
  21     maxItems: 1
  22
  23   reset-gpios:
  24     maxItems: 1
  25     description: GPIO connected to active high RESET pin.
  26
  27   ports:
  28     $ref: /schemas/graph.yaml#/properties/ports
  29
  30     properties:
  31       port@0:
  32         $ref: /schemas/graph.yaml#/$defs/port-base
  33         unevaluatedProperties: false
  34         description:
  35           Primary MIPI port for MIPI input
  36
  37         properties:
  38           endpoint:
  39             $ref: /schemas/media/video-interfaces.yaml#
  40             unevaluatedProperties: false
  41
  42             properties:
  43               data-lanes: true
  44
  45             required:
  46               - data-lanes
  47
  48       port@1:
  49         $ref: /schemas/graph.yaml#/properties/port
  50         description: |
  51           HDMI port, should be connected to a node compatible with the
  52           hdmi-connector binding.
  53
  54     required:
  55       - port@0
  56       - port@1
  57
  58   vcchdmipll-supply:
  59     description: A 1.8V supply that powers the HDMI PLL.
  60
  61   vcchdmitx-supply:
  62     description: A 1.8V supply that powers the HDMI TX part.
  63
  64   vcclvdspll-supply:
  65     description: A 1.8V supply that powers the LVDS PLL.
  66
  67   vcclvdstx-supply:
  68     description: A 1.8V supply that powers the LVDS TX part.
  69
  70   vccmipirx-supply:
  71     description: A 1.8V supply that powers the MIPI RX part.
  72
  73   vccsysclk-supply:
  74     description: A 1.8V supply that powers the SYSCLK.
  75
  76   vdd-supply:
  77     description: A 1.8V supply that powers the digital part.
  78
  79 required:
  80   - compatible
  81   - reg
  82   - reset-gpios
  83   - ports
  84
  85 additionalProperties: false
  86
  87 examples:
  88   - |
  89     #include <dt-bindings/gpio/gpio.h>
  90
  91     i2c {
  92       #address-cells = <1>;
  93       #size-cells = <0>;
  94
  95       hdmi-bridge@48 {
  96         compatible = "lontium,lt8912b";
  97         reg = <0x48>;
  98         reset-gpios = <&max7323 0 GPIO_ACTIVE_LOW>;
  99
 100         ports {
 101           #address-cells = <1>;
 102           #size-cells = <0>;
 103
 104           port@0 {
 105             reg = <0>;
 106
 107             hdmi_out_in: endpoint {
 108               data-lanes = <0 1 2 3>;
 109               remote-endpoint = <&mipi_dsi_out>;
 110             };
 111           };
 112
 113           port@1 {
 114               reg = <1>;
 115
 116               endpoint {
 117                   remote-endpoint = <&hdmi_in>;
 118               };
 119           };
 120         };
 121       };
 122     };
 123
 124 ...