1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 $id: http://devicetree.org/schemas/display/dp-aux-bus.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: DisplayPort AUX bus
10 - Douglas Anderson <dianders@chromium.org>
13 DisplayPort controllers provide a control channel to the sinks that
14 are hooked up to them. This is the DP AUX bus. Over the DP AUX bus
15 we can query properties about a sink and also configure it. In
16 particular, DP sinks support DDC over DP AUX which allows tunneling
17 a standard I2C DDC connection over the AUX channel.
19 To model this relationship, DP sinks should be placed as children
20 of the DP controller under the "aux-bus" node.
22 At the moment, this binding only handles the eDP case. It is
23 possible it will be extended in the future to handle the DP case.
24 For DP, presumably a connector would be listed under the DP AUX
25 bus instead of a panel.
32 $ref: panel/panel-common.yaml#
34 additionalProperties: false