dp-aux-bus.yaml

 1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 2%YAML 1.2
 3---
 4$id: http://devicetree.org/schemas/display/dp-aux-bus.yaml#
 5$schema: http://devicetree.org/meta-schemas/core.yaml#
 6
 7title: DisplayPort AUX bus
 8
 9maintainers:
10  - Douglas Anderson <dianders@chromium.org>
11
12description:
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.
18
19  To model this relationship, DP sinks should be placed as children
20  of the DP controller under the "aux-bus" node.
21
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.
26
27properties:
28  $nodename:
29    const: aux-bus
30
31  panel:
32    $ref: panel/panel-common.yaml#
33
34additionalProperties: false
35
36required:
37  - panel