Documentation/devicetree/bindings/display/panel/advantech,idk-2121wr.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/panel/advantech,idk-2121wr.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Advantech IDK-2121WR 21.5" Full-HD dual-LVDS panel
   8
   9 maintainers:
  10   - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
  11   - Thierry Reding <thierry.reding@gmail.com>
  12
  13 description: |
  14   The IDK-2121WR from Advantech is a Full-HD dual-LVDS panel.
  15   A dual-LVDS interface is a dual-link connection with even pixels traveling
  16   on one link, and with odd pixels traveling on the other link.
  17
  18   The panel expects odd pixels on the first port, and even pixels on the
  19   second port, therefore the ports must be marked accordingly (with either
  20   dual-lvds-odd-pixels or dual-lvds-even-pixels).
  21
  22 properties:
  23   compatible:
  24     items:
  25       - const: advantech,idk-2121wr
  26       - {} # panel-lvds, but not listed here to avoid false select
  27
  28   width-mm:
  29     const: 476
  30
  31   height-mm:
  32     const: 268
  33
  34   data-mapping:
  35     const: vesa-24
  36
  37   panel-timing: true
  38
  39   ports:
  40     $ref: /schemas/graph.yaml#/properties/ports
  41
  42     properties:
  43       port@0:
  44         $ref: /schemas/graph.yaml#/$defs/port-base
  45         unevaluatedProperties: false
  46         description: The sink for odd pixels.
  47         properties:
  48           dual-lvds-odd-pixels: true
  49
  50         required:
  51           - dual-lvds-odd-pixels
  52
  53       port@1:
  54         $ref: /schemas/graph.yaml#/$defs/port-base
  55         unevaluatedProperties: false
  56         description: The sink for even pixels.
  57         properties:
  58           dual-lvds-even-pixels: true
  59
  60         required:
  61           - dual-lvds-even-pixels
  62
  63     required:
  64       - port@0
  65       - port@1
  66
  67 additionalProperties: false
  68
  69 required:
  70   - compatible
  71   - width-mm
  72   - height-mm
  73   - data-mapping
  74   - panel-timing
  75   - ports
  76
  77 examples:
  78   - |+
  79     panel-lvds {
  80       compatible = "advantech,idk-2121wr", "panel-lvds";
  81
  82       width-mm = <476>;
  83       height-mm = <268>;
  84
  85       data-mapping = "vesa-24";
  86
  87       panel-timing {
  88         clock-frequency = <148500000>;
  89         hactive = <1920>;
  90         vactive = <1080>;
  91         hsync-len = <44>;
  92         hfront-porch = <88>;
  93         hback-porch = <148>;
  94         vfront-porch = <4>;
  95         vback-porch = <36>;
  96         vsync-len = <5>;
  97       };
  98
  99       ports {
 100         #address-cells = <1>;
 101         #size-cells = <0>;
 102
 103         port@0 {
 104           reg = <0>;
 105           dual-lvds-odd-pixels;
 106           panel_in0: endpoint {
 107             remote-endpoint = <&lvds0_out>;
 108           };
 109         };
 110
 111         port@1 {
 112           reg = <1>;
 113           dual-lvds-even-pixels;
 114           panel_in1: endpoint {
 115             remote-endpoint = <&lvds1_out>;
 116           };
 117         };
 118       };
 119     };
 120
 121 ...