target/linux/bcm27xx/patches-6.1/950-1183-dt-bindings-display-panel-dsi-bindings.patch

   1 From e14ceeadfa5b9d8a41e73edfa416bbe92dd5b20d Mon Sep 17 00:00:00 2001
   2 From: Timon Skerutsch <kernel@diodes-delight.com>
   3 Date: Mon, 13 Nov 2023 22:53:22 +0100
   4 Subject: [PATCH] dt-bindings: display: panel-dsi bindings
   5
   6 Bindings for the panel-dsi specific additions to panel-simple.
   7 Allow for DSI specific bus settings and panel timing
   8 to be define in devicetree. Very similar to panel-dpi.
   9
  10 Signed-off-by: Timon Skerutsch <kernel@diodes-delight.com>
  11 ---
  12  .../bindings/display/panel/panel-dsi.yaml     | 118 ++++++++++++++++++
  13  1 file changed, 118 insertions(+)
  14  create mode 100644 Documentation/devicetree/bindings/display/panel/panel-dsi.yaml
  15
  16 --- /dev/null
  17 +++ b/Documentation/devicetree/bindings/display/panel/panel-dsi.yaml
  18 @@ -0,0 +1,118 @@
  19 +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
  20 +%YAML 1.2
  21 +---
  22 +$id: http://devicetree.org/schemas/display/panel/panel-dsi.yaml#
  23 +$schema: http://devicetree.org/meta-schemas/core.yaml#
  24 +
  25 +title: Generic MIPI DSI Panel
  26 +
  27 +maintainers:
  28 +  - Timon Skerutsch <kernel@diodes-delight.com>
  29 +
  30 +allOf:
  31 +  - $ref: panel-common.yaml#
  32 +
  33 +properties:
  34 +  compatible:
  35 +    description:
  36 +      Shall contain a panel specific compatible and "panel-dsi"
  37 +      in that order.
  38 +    items:
  39 +      - {}
  40 +      - const: panel-dsi
  41 +
  42 +  dsi-color-format:
  43 +    description: |
  44 +      The color format used by the panel. Only DSI supported formats are allowed.
  45 +    enum:
  46 +      - RGB888
  47 +      - RGB666
  48 +      - RGB666_PACKED
  49 +      - RGB565
  50 +
  51 +  port:
  52 +    $ref: /schemas/graph.yaml#/$defs/port-base
  53 +    unevaluatedProperties: false
  54 +    description:
  55 +      Panel MIPI DSI input
  56 +
  57 +    properties:
  58 +      endpoint:
  59 +        $ref: /schemas/media/video-interfaces.yaml#
  60 +        unevaluatedProperties: false
  61 +
  62 +        properties:
  63 +          data-lanes: true
  64 +
  65 +        required:
  66 +          - data-lanes
  67 +
  68 +  mode:
  69 +    description: |
  70 +      DSI mode flags. See DSI Specs for details.
  71 +      These are driver independent features of the DSI bus.
  72 +    items:
  73 +      - const: MODE_VIDEO
  74 +      - const: MODE_VIDEO_BURST
  75 +      - const: MODE_VIDEO_SYNC_PULSE
  76 +      - const: MODE_VIDEO_AUTO_VERT
  77 +      - const: MODE_VIDEO_HSE
  78 +      - const: MODE_VIDEO_NO_HFP
  79 +      - const: MODE_VIDEO_NO_HBP
  80 +      - const: MODE_VIDEO_NO_HSA
  81 +      - const: MODE_VSYNC_FLUSH
  82 +      - const: MODE_NO_EOT_PACKET
  83 +      - const: CLOCK_NON_CONTINUOUS
  84 +      - const: MODE_LPM
  85 +      - const: HS_PKT_END_ALIGNED
  86 +
  87 +  reg: true
  88 +  backlight: true
  89 +  enable-gpios: true
  90 +  width-mm: true
  91 +  height-mm: true
  92 +  panel-timing: true
  93 +  power-supply: true
  94 +  reset-gpios: true
  95 +  ddc-i2c-bus: true
  96 +
  97 +required:
  98 +  - panel-timing
  99 +  - reg
 100 +  - power-supply
 101 +  - dsi-color-format
 102 +  - port
 103 +
 104 +additionalProperties: false
 105 +
 106 +examples:
 107 +  - |
 108 +    panel {
 109 +        compatible = "panel-mfgr,generic-dsi-panel","panel-dsi";
 110 +        power-supply = <&vcc_supply>;
 111 +        backlight = <&backlight>;
 112 +        dsi-color-format = "RGB888";
 113 +        reg = <0>;
 114 +        mode = "MODE_VIDEO", "MODE_VIDEO_BURST", "MODE_NO_EOT_PACKET";
 115 +
 116 +        port {
 117 +            panel_dsi_port: endpoint {
 118 +                data-lanes = <1 2>;
 119 +                remote-endpoint = <&dsi_out>;
 120 +            };
 121 +        };
 122 +
 123 +        panel-timing {
 124 +            clock-frequency = <9200000>;
 125 +            hactive = <800>;
 126 +            vactive = <480>;
 127 +            hfront-porch = <8>;
 128 +            hback-porch = <4>;
 129 +            hsync-len = <41>;
 130 +            vback-porch = <2>;
 131 +            vfront-porch = <4>;
 132 +            vsync-len = <10>;
 133 +        };
 134 +    };
 135 +
 136 +...