Add bindings for a physical, hot-pluggable connector allowing the far end of a MIPI DSI bus to be connected and disconnected at runtime. Signed-off-by: Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx> --- .../bridge/hotplug-video-connector-dsi.yaml | 87 ++++++++++++++++++++++ MAINTAINERS | 5 ++ 2 files changed, 92 insertions(+) diff --git a/Documentation/devicetree/bindings/display/bridge/hotplug-video-connector-dsi.yaml b/Documentation/devicetree/bindings/display/bridge/hotplug-video-connector-dsi.yaml new file mode 100644 index 000000000000..05beb8aa9ab4 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/hotplug-video-connector-dsi.yaml @@ -0,0 +1,87 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/hotplug-video-connector-dsi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Hot-pluggable connector on a MIPI DSI bus + +maintainers: + - Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx> + +description: + A bridge representing a physical, hot-pluggable connector on a MIPI DSI + video bus. The connector splits the video pipeline in a fixed part and a + removable part. + + The fixed part of the video pipeline includes all components up to the + display controller and 0 or more bridges. The removable part includes one + or more bridges and any other components up to the panel. + + The removable part of the pipeline can be physically disconnected at any + moment, making all of its components not usable anymore. The same or a + different removable part of the pipeline can be reconnected later on. + + Note that the hotplug-video-connector does not describe video busses + having native hotplug capabilities in the hardware, such as HDMI. + +properties: + compatible: + const: hotplug-video-connector-dsi + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: + The end of the fixed part of the MIPI DSI bus (terminating at the + hotplug connector). The remote-endpoint sub-node must point to + the previous component of the video pipeline. + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: + The start of the removable part of the MIPI DSI bus (starting + from the hotplug connector). The remote-endpoint sub-node must + point to the next component of the video pipeline. + + required: + - port@0 + - port@1 + +required: + - compatible + - ports + +additionalProperties: false + +examples: + - | + hotplug-video-connector { + compatible = "hotplug-video-connector-dsi"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + hotplug_connector_in: endpoint { + remote-endpoint = <&previous_bridge_out>; + }; + }; + + port@1 { + reg = <1>; + + hotplug_connector_out: endpoint { + remote-endpoint = <&next_bridge_in>; + }; + }; + }; + }; + +... diff --git a/MAINTAINERS b/MAINTAINERS index aa3b947fb080..e1affd13e30b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6716,6 +6716,11 @@ T: git git://anongit.freedesktop.org/drm/drm-misc F: Documentation/devicetree/bindings/display/panel/himax,hx8394.yaml F: drivers/gpu/drm/panel/panel-himax-hx8394.c +DRM DRIVER FOR HOTPLUG VIDEO CONNECTOR BRIDGE +M: Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx> +S: Maintained +F: Documentation/devicetree/bindings/display/bridge/hotplug-video-connector-dsi.yaml + DRM DRIVER FOR HX8357D PANELS S: Orphan T: git git://anongit.freedesktop.org/drm/drm-misc -- 2.34.1
