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Describe 1..4 DSI lanes as supported. Internally, this bridge is an ChipOne ICN6211 which loads its register configuration from a dedicated storage and its I2C does not seem to be accessible. The ICN6211 supports up to 4 DSI lanes, so this is a hard limit for this bridge. The lane configuration is preconfigured in the bridge for each of the WaveShare panels. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20260115024004.660986-1-marek.vasut+renesas@mailbox.org Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
107 lines
2.2 KiB
YAML
107 lines
2.2 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/display/bridge/waveshare,dsi2dpi.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Waveshare MIPI-DSI to DPI Converter bridge
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maintainers:
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- Joseph Guo <qijian.guo@nxp.com>
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description:
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Waveshare bridge board is part of Waveshare panel which converts DSI to DPI.
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properties:
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compatible:
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const: waveshare,dsi2dpi
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reg:
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maxItems: 1
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description: base I2C address of the device
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power-supply: true
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ports:
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$ref: /schemas/graph.yaml#/properties/ports
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properties:
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port@0:
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$ref: /schemas/graph.yaml#/$defs/port-base
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unevaluatedProperties: false
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description:
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Video port for MIPI DSI input
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properties:
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endpoint:
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$ref: /schemas/media/video-interfaces.yaml#
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unevaluatedProperties: false
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properties:
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data-lanes:
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description: array of physical DSI data lane indexes.
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minItems: 1
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items:
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- const: 1
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- const: 2
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- const: 3
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- const: 4
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required:
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- data-lanes
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port@1:
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$ref: /schemas/graph.yaml#/properties/port
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description:
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Video port for MIPI DPI output panel.
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required:
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- port@0
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- port@1
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required:
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- compatible
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- reg
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- ports
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- power-supply
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additionalProperties: false
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examples:
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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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bridge@45 {
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compatible = "waveshare,dsi2dpi";
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reg = <0x45>;
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power-supply = <®_3p3v>;
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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port@0 {
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reg = <0>;
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waveshare_from_dsim: endpoint {
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data-lanes = <1 2>;
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remote-endpoint = <&dsim_to_waveshare>;
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};
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};
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port@1 {
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reg = <1>;
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waveshare_to_panel: endpoint {
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remote-endpoint = <&panel_to_waveshare>;
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};
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};
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};
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};
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};
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...
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