Commit 9e5cb097 authored by Amit Sunil Dhamne's avatar Amit Sunil Dhamne Committed by Greg Kroah-Hartman
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dt-bindings: connector: Add time property for Sink BC12 detection completion 



This commit adds a new time property for Battery charger (BC1.2) type
detection completion process (based on BCv1.2 detection spec) when
typec port connects in a potential sink role. BC1.2 detection is used
by some Type C port controllers implementations (such as
"maxim,max33359") to detect the type of charger port.

Signed-off-by: default avatarAmit Sunil Dhamne <amitsd@google.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20241103034402.2460252-2-amitsd@google.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent f5313c8b

Documentation/devicetree/bindings/connector/usb-connector.yaml

+11 −0
Original line number Diff line number Diff line
@@ -283,6 +283,16 @@ properties: 
    maximum: 200

    default: 200



  sink-bc12-completion-time-ms:

    description: Represents the max time in ms that a port in sink role takes

      to complete Battery Charger (BC1.2) Detection. BC1.2 detection is a

      hardware mechanism, which in some TCPC implementations, can run in

      parallel once the Type-C connection state machine reaches the "potential

      connect as sink" state. In TCPCs where this causes delays to respond to

      the incoming PD messages, sink-bc12-completion-time-ms is used to delay

      PD negotiation till BC1.2 detection completes.

    default: 0



dependencies:

  sink-vdos-v1: [ sink-vdos ]

  sink-vdos: [ sink-vdos-v1 ]
@@ -426,6 +436,7 @@ examples: 
            sink-wait-cap-time-ms = <465>;

            ps-source-off-time-ms = <835>;

            cc-debounce-time-ms = <101>;

            sink-bc12-completion-time-ms = <500>;

        };

    };