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dt-bindings: dp-connector: describe separate DP and AUX lines

In some cases it's reasonable to describe DP lanes and AUX signal lines
separately in the DT. One of the typical reasons is if the source of DP
signals can support either USB-C or DP connections. In such a case the
transmitter of DP signals have separate ports: one for SS lanes and
another one for SBU / AUX signals.

Instead of leaving AUX signals from the controller unconnected, add an
option to the DT schema to AUX signal lines separately from the main
link lanes.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250907-dp-conenctor-sbu-v1-1-de79c0fcd64d@oss.qualcomm.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

authored by

Dmitry Baryshkov and committed by
Rob Herring (Arm) b132e974 3ef9c995

+51 -1
+51 -1
Documentation/devicetree/bindings/display/connector/dp-connector.yaml
··· 31 31 $ref: /schemas/graph.yaml#/properties/port 32 32 description: Connection to controller providing DP signals 33 33 34 + ports: 35 + $ref: /schemas/graph.yaml#/properties/ports 36 + description: OF graph representation of signales routed to DP connector 37 + 38 + properties: 39 + port@0: 40 + $ref: /schemas/graph.yaml#/properties/port 41 + description: Connection to controller providing DP signals 42 + 43 + port@1: 44 + $ref: /schemas/graph.yaml#/properties/port 45 + description: Connection to controller providing AUX signals 46 + 47 + required: 48 + - port@0 49 + - port@1 50 + 34 51 required: 35 52 - compatible 36 53 - type 37 - - port 54 + 55 + oneOf: 56 + - required: 57 + - port 58 + - required: 59 + - ports 38 60 39 61 additionalProperties: false 40 62 ··· 74 52 }; 75 53 }; 76 54 55 + - | 56 + /* DP connecttor being driven by the USB+DP combo PHY */ 57 + connector { 58 + compatible = "dp-connector"; 59 + label = "dp0"; 60 + type = "full-size"; 61 + 62 + ports { 63 + #address-cells = <1>; 64 + #size-cells = <0>; 65 + 66 + port@0 { 67 + reg = <0>; 68 + 69 + endpoint { 70 + remote-endpoint = <&phy_ss_out>; 71 + }; 72 + }; 73 + 74 + port@1 { 75 + reg = <1>; 76 + 77 + endpoint { 78 + remote-endpoint = <&phy_sbu_out>; 79 + }; 80 + }; 81 + }; 82 + }; 77 83 ...