Hi, On Fri, May 29, 2026 at 12:05:28PM +0800, Damon Ding wrote: > Add data-lanes property support to the port@1 endpoint for physical > lane mapping configuration. > > Lane mapping is mainly used for below scenarios: > 1. Correct PCB lane swap and differential line routing crossover > without hardware changes; > 2. Adapt mismatched lane pin definitions between SoC and eDP panel; > 3. Support multiple panel hardware variants on the same board > by configuring data-lanes in device tree only. > > Additionally, add data-lanes setting in Rockchip eDP DT node example > to show actual lane mapping usage. > > Signed-off-by: Damon Ding <[email protected]> > > ---
Reviewed-by: Sebastian Reichel <[email protected]> Greetings, -- Sebastian > Changes in v2: > - Add lane mapping application scenarios in commit message. > - Remove redundant deprecated property 'data-lanes' for eDP node. > - Update port@1 $ref to /schemas/graph.yaml#/$defs/port-base. > > Changes in v3: > - Squash data-lanes adjustment of Rockchip eDP DT example into this > commit. > - Add unevaluatedProperties: false to both the port@1 and endpoint > nodes. > --- > .../bindings/display/bridge/analogix,dp.yaml | 19 ++++++++++++++----- > .../rockchip/rockchip,analogix-dp.yaml | 1 + > 2 files changed, 15 insertions(+), 5 deletions(-) > > diff --git > a/Documentation/devicetree/bindings/display/bridge/analogix,dp.yaml > b/Documentation/devicetree/bindings/display/bridge/analogix,dp.yaml > index 62f0521b0924..ecf206871cdd 100644 > --- a/Documentation/devicetree/bindings/display/bridge/analogix,dp.yaml > +++ b/Documentation/devicetree/bindings/display/bridge/analogix,dp.yaml > @@ -42,13 +42,22 @@ properties: > properties: > port@0: > $ref: /schemas/graph.yaml#/properties/port > - description: > - Input node to receive pixel data. > + description: Input node to receive pixel data. > > port@1: > - $ref: /schemas/graph.yaml#/properties/port > - description: > - Port node with one endpoint connected to a dp-connector node. > + $ref: /schemas/graph.yaml#/$defs/port-base > + unevaluatedProperties: false > + description: Port node with one endpoint connected to sink device > node. > + properties: > + endpoint: > + $ref: /schemas/media/video-interfaces.yaml# > + unevaluatedProperties: false > + properties: > + data-lanes: > + minItems: 1 > + maxItems: 4 > + items: > + enum: [ 0, 1, 2, 3 ] > > required: > - port@0 > diff --git > a/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml > > b/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml > index d99b23b88cc5..f690ee393fdb 100644 > --- > a/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml > +++ > b/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml > @@ -117,6 +117,7 @@ examples: > reg = <1>; > > edp_out_panel: endpoint { > + data-lanes = <0 1>; > remote-endpoint = <&panel_in_edp>; > }; > }; > -- > 2.34.1 >
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