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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/dp-aux-bus.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: DisplayPort AUX bus
maintainers:
- Douglas Anderson <dianders@chromium.org>
description:
DisplayPort controllers provide a control channel to the sinks that
are hooked up to them. This is the DP AUX bus. Over the DP AUX bus
we can query properties about a sink and also configure it. In
particular, DP sinks support DDC over DP AUX which allows tunneling
a standard I2C DDC connection over the AUX channel.
To model this relationship, DP sinks should be placed as children
of the DP controller under the "aux-bus" node.
At the moment, this binding only handles the eDP case. It is
possible it will be extended in the future to handle the DP case.
For DP, presumably a connector would be listed under the DP AUX
bus instead of a panel.
properties:
$nodename:
const: aux-bus
panel:
$ref: panel/panel-common.yaml#
additionalProperties: false
required:
- panel
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