[PATCH v9 1/3] dt-bindings: soc: imx93-media-blk-ctrl: Add PDFC subnode to schema and example
From: Marco Felsch <hidden>
Date: 2026-01-15 15:25:13
Also in:
dri-devel, imx, linux-devicetree, lkml
Subsystem:
open firmware and flattened device tree bindings, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
From: Liu Ying <victor.liu@nxp.com> i.MX93 SoC mediamix blk-ctrl contains one DISPLAY_MUX register which configures parallel display format by using the "PARALLEL_DISP_FORMAT" field. Document the Parallel Display Format Configuration(PDFC) subnode and add the subnode to example. Signed-off-by: Liu Ying <victor.liu@nxp.com> [m.felsch@pengutronix.de: port to v6.18-rc1] [m.felsch@pengutronix.de: add bus-width] Signed-off-by: Marco Felsch <redacted> --- .../bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml | 78 ++++++++++++++++++++++ 1 file changed, 78 insertions(+)
diff --git a/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml
index 34aea58094e55365a2f9c86092f637e533f954ff..d828c2e82965c7a4cd69a67136047d83c96b0a35 100644
--- a/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml
+++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml@@ -40,6 +40,58 @@ properties: minItems: 8 maxItems: 10 + dpi-bridge: + type: object + additionalProperties: false + + properties: + compatible: + enum: + - nxp,imx91-pdfc + - nxp,imx93-pdfc + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: Input port node to receive pixel data. + + port@1: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + description: Output port node to downstream pixel data receivers. + + properties: + endpoint: + $ref: /schemas/media/video-interfaces.yaml# + unevaluatedProperties: false + + properties: + bus-width: + enum: [ 16, 18, 24 ] + description: + Specify the physical parallel bus width. + + This property is optional if the display bus-width + matches the SoC bus-width, e.g. a 18-bit RGB666 (display) + is connected and all 18-bit data lines are muxed to the + parallel-output pads. + + This property must be set to 18 to cut only the LSBs + instead of the MSBs in case a 24-bit RGB888 display is + connected and only the lower 18-bit data lanes are muxed + to the parallel-output pads. + + required: + - port@0 + - port@1 + + required: + - compatible + - ports + allOf: - if: properties:
@@ -112,4 +164,30 @@ examples: clock-names = "apb", "axi", "nic", "disp", "cam", "pxp", "lcdif", "isi", "csi", "dsi"; #power-domain-cells = <1>; + + dpi-bridge { + compatible = "nxp,imx93-pdfc"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + pdfc_from_lcdif: endpoint { + remote-endpoint = <&lcdif_to_pdfc>; + }; + }; + + port@1 { + reg = <1>; + + pdfc_to_panel: endpoint { + remote-endpoint = <&panel_from_pdfc>; + bus-width = <18>; + }; + }; + }; + }; };
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2.47.3