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dt-bindings: usb: snps,dwc3: document HS & SS OF graph ports

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Document the optional ports subnode to describe the High-Speed
and Super-Speed connections as separate OF graph links.

The ports property is an alternative to the already documented
single port subnode property.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230130-topic-sm8450-upstream-pmic-glink-v5-5-552f3b721f9e@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Neil Armstrong 2023-03-21 14:21:45 +01:00 committed by Greg Kroah-Hartman
parent 62b5412b1f
commit a33113f736
1 changed files with 16 additions and 0 deletions
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16
Documentation/devicetree/bindings/usb/snps,dwc3.yaml
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@ -377,6 +377,22 @@ properties:
This port is used with the 'usb-role-switch' property to connect the
dwc3 to type C connector.
ports:
$ref: /schemas/graph.yaml#/properties/ports
description:
Those ports should be used with any connector to the data bus of this
controller using the OF graph bindings specified if the "usb-role-switch"
property is used.
properties:
port@0:
$ref: /schemas/graph.yaml#/properties/port
description: High Speed (HS) data bus.
port@1:
$ref: /schemas/graph.yaml#/properties/port
description: Super Speed (SS) data bus.
wakeup-source:
$ref: /schemas/types.yaml#/definitions/flag
description: