Add binding for DisplayPort connector. A few notes:
* Similar to hdmi-connector, it has hpd-gpios as an optional property, as the HPD could also be handled by, e.g., the DP bridge.
* dp-pwr-supply, which provides 3.3V on DP_PWR pin, is optional, as it is not strictly required: standard DP cables do not even have the pin connected.
* Connector type. Full size and mini connectors are identical except for the connector size and form, so I believe there is no functional need for this property. But similar to 'label' property, it might be used to present information about the connector to the userspace.
* No eDP. There's really no "eDP connector", as it's always a custom made connection between the DP and the DP panel, although the eDP spec does offer a few suggested pin setups. So possibly there is no need for edp-connector binding, but even if there is, I don't want to guess what it could look like, and could it be part of the dp-connector binding.
* No DP++. I'm not familiar with DP++. DP++ might need an i2c bus added to the bindings.
Signed-off-by: Tomi Valkeinen tomi.valkeinen@ti.com Reviewed-by: Laurent Pinchart laurent.pinchart@ideasonboard.com --- .../display/connector/dp-connector.yaml | 56 +++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/connector/dp-connector.yaml
diff --git a/Documentation/devicetree/bindings/display/connector/dp-connector.yaml b/Documentation/devicetree/bindings/display/connector/dp-connector.yaml new file mode 100644 index 000000000000..1c17d60e7760 --- /dev/null +++ b/Documentation/devicetree/bindings/display/connector/dp-connector.yaml @@ -0,0 +1,56 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/connector/dp-connector.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: DisplayPort Connector + +maintainers: + - Tomi Valkeinen tomi.valkeinen@ti.com + +properties: + compatible: + const: dp-connector + + label: true + + type: + enum: + - full-size + - mini + + hpd-gpios: + description: A GPIO line connected to HPD + maxItems: 1 + + dp-pwr-supply: + description: Power supply for the DP_PWR pin + maxItems: 1 + + port: + $ref: /schemas/graph.yaml#/properties/port + description: Connection to controller providing DP signals + +required: + - compatible + - type + - port + +additionalProperties: false + +examples: + - | + connector { + compatible = "dp-connector"; + label = "dp0"; + type = "full-size"; + + port { + dp_connector_in: endpoint { + remote-endpoint = <&dp_out>; + }; + }; + }; + +...