| Message ID | 20201130112919.241054-2-tomi.valkeinen@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm: add DisplayPort connector | expand |
On Mon, 30 Nov 2020 13:29:18 +0200, Tomi Valkeinen wrote: > 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 > Reviewed-by: Rob Herring <robh@kernel.org>
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>; + }; + }; + }; + +...