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