Commit 63f4e7df authored by Andrej Picej's avatar Andrej Picej Committed by Neil Armstrong
Browse files

dt-bindings: drm/bridge: ti-sn65dsi83: Add properties for ti,lvds-vod-swing 



Add properties which can be used to specify LVDS differential output
voltage. Since this also depends on near-end signal termination also
include property which sets this. LVDS differential output voltage is
specified with an array (min, max), which should match the one from
connected device.

Signed-off-by: default avatarAndrej Picej <andrej.picej@norik.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20241216085410.1968634-2-andrej.picej@norik.com


Signed-off-by: default avatarNeil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241216085410.1968634-2-andrej.picej@norik.com
parent 3ec5c157

Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml

+32 −2
Original line number Diff line number Diff line
@@ -80,12 +80,12 @@ properties: 
                  - const: 4



      port@2:

        $ref: /schemas/graph.yaml#/properties/port

        description: Video port for LVDS Channel-A output (panel or bridge).

        $ref: '#/$defs/lvds-port'



      port@3:

        $ref: /schemas/graph.yaml#/properties/port

        description: Video port for LVDS Channel-B output (panel or bridge).

        $ref: '#/$defs/lvds-port'



    required:

      - port@0
@@ -96,6 +96,36 @@ required: 
  - reg

  - ports



$defs:

  lvds-port:

    $ref: /schemas/graph.yaml#/$defs/port-base

    unevaluatedProperties: false



    properties:

      endpoint:

        $ref: /schemas/media/video-interfaces.yaml#

        unevaluatedProperties: false



        properties:

          ti,lvds-termination-ohms:

            description: The value of near end differential termination in ohms.

            enum: [100, 200]

            default: 200



          ti,lvds-vod-swing-clock-microvolt:

            description: LVDS diferential output voltage <min max> for clock

              lanes in microvolts.

            $ref: /schemas/types.yaml#/definitions/uint32-array

            minItems: 2

            maxItems: 2



          ti,lvds-vod-swing-data-microvolt:

            description: LVDS diferential output voltage <min max> for data

              lanes in microvolts.

            $ref: /schemas/types.yaml#/definitions/uint32-array

            minItems: 2

            maxItems: 2



allOf:

  - if:

      properties: