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     type: object
  41     properties:
  42       port@0:
  43         type: object
  44         description: The sink for odd pixels.
  45         properties:
  46           reg:
  47             const: 0
  48
  49           dual-lvds-odd-pixels: true
  50
  51         required:
  52           - reg
  53           - dual-lvds-odd-pixels
  54
  55       port@1:
  56         type: object
  57         description: The sink for even pixels.
  58         properties:
  59           reg:
  60             const: 1
  61
  62           dual-lvds-even-pixels: true
  63
  64         required:
  65           - reg
  66           - dual-lvds-even-pixels
  67
  68 additionalProperties: false
  69
  70 required:
  71   - compatible
  72   - width-mm
  73   - height-mm
  74   - data-mapping
  75   - panel-timing
  76   - ports
  77
  78 examples:
  79   - |+
  80     panel-lvds {
  81       compatible = "advantech,idk-2121wr", "panel-lvds";
  82
  83       width-mm = <476>;
  84       height-mm = <268>;
  85
  86       data-mapping = "vesa-24";
  87
  88       panel-timing {
  89         clock-frequency = <148500000>;
  90         hactive = <1920>;
  91         vactive = <1080>;
  92         hsync-len = <44>;
  93         hfront-porch = <88>;
  94         hback-porch = <148>;
  95         vfront-porch = <4>;
  96         vback-porch = <36>;
  97         vsync-len = <5>;
  98       };
  99
 100       ports {
 101         #address-cells = <1>;
 102         #size-cells = <0>;
 103
 104         port@0 {
 105           reg = <0>;
 106           dual-lvds-odd-pixels;
 107           panel_in0: endpoint {
 108             remote-endpoint = <&lvds0_out>;
 109           };
 110         };
 111
 112         port@1 {
 113           reg = <1>;
 114           dual-lvds-even-pixels;
 115           panel_in1: endpoint {
 116             remote-endpoint = <&lvds1_out>;
 117           };
 118         };
 119       };
 120     };
 121
 122 ...