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AJvYcCWvtfhilfZ11qVO+iKZpMdDlzTdb6X9dB9cwU5+3N5jb1yzFw7yLPfCfyjG1VtwAoegvBoiQ7peD90=@vger.kernel.org X-Gm-Message-State: AOJu0YzdqCIy1PVYPhptMLxSfdGEiEbBRvviAwHJfrphZuonLJdDMxTy CZf/T2a0vUTHUakbpdLgR7ZZqwkrv13JXY9OQhzMKh1A7VJsNxnEd9q1kcr/G4tsnVYlnt8fRbr cPQ== X-Google-Smtp-Source: AGHT+IHzb0iRIstFF5hN4PGd2zA1+ThWNXNbtoz4ikdltRmzRF3u92SdPOFeBkTUGKp0h2hZRT1/GG15QsI= X-Received: from amitsd-gti.c.googlers.com ([fda3:e722:ac3:cc00:20:ed76:c0a8:827]) (user=amitsd job=sendgmr) by 2002:a25:a045:0:b0:e30:da65:7240 with SMTP id 3f1490d57ef6-e33025536damr8488276.3.1730605603649; Sat, 02 Nov 2024 20:46:43 -0700 (PDT) Date: Sat, 2 Nov 2024 20:43:28 -0700 In-Reply-To: <20241103034402.2460252-1-amitsd@google.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20241103034402.2460252-1-amitsd@google.com> X-Mailer: git-send-email 2.47.0.199.ga7371fff76-goog Message-ID: <20241103034402.2460252-2-amitsd@google.com> Subject: [PATCH v2 1/3] dt-bindings: connector: Add time property for Sink BC12 detection completion From: Amit Sunil Dhamne To: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, gregkh@linuxfoundation.org, heikki.krogerus@linux.intel.com Cc: dmitry.baryshkov@linaro.org, kyletso@google.com, rdbabiera@google.com, badhri@google.com, linux@roeck-us.net, xu.yang_2@nxp.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, Amit Sunil Dhamne , Krzysztof Kozlowski 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: Amit Sunil Dhamne Reviewed-by: Krzysztof Kozlowski --- .../devicetree/bindings/connector/usb-connector.yaml | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Documentation/devicetree/bindings/connector/usb-connector.yaml b/Documentation/devicetree/bindings/connector/usb-connector.yaml index 21a0c58c65cd..67700440e23b 100644 --- a/Documentation/devicetree/bindings/connector/usb-connector.yaml +++ b/Documentation/devicetree/bindings/connector/usb-connector.yaml @@ -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>; }; };