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Mon, 11 May 2026 06:57:24 -0700 (PDT) Received: from xeon ([188.163.112.56]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-67ef0b3b904sm3685357a12.1.2026.05.11.06.57.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 May 2026 06:57:23 -0700 (PDT) From: Svyatoslav Ryhel To: Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Vinod Koul , Neil Armstrong , Thierry Reding , Jonathan Hunter , Greg Kroah-Hartman , Peter Chen , Svyatoslav Ryhel Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, linux-tegra@vger.kernel.org, linux-usb@vger.kernel.org Subject: [PATCH v1 1/6] dt-bindings: usb: ci-hdrc-usb2: Document nvidia,external-control property Date: Mon, 11 May 2026 16:56:56 +0300 Message-ID: <20260511135703.62470-2-clamor95@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260511135703.62470-1-clamor95@gmail.com> References: <20260511135703.62470-1-clamor95@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260511_145729_585850_D34475A8 X-CRM114-Status: UNSURE ( 9.35 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org Document the nvidia,external-control property required, for example, for USB lines in HSIC mode connected to a modem, where the modem requires precise control over the USB bus to properly enumerate all its stages and intermediate devices. Signed-off-by: Svyatoslav Ryhel --- Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml index 691d6cf02c27..a13c1ef49a57 100644 --- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml +++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml @@ -75,6 +75,13 @@ properties: type: boolean deprecated: true + nvidia,external-control: + description: + Indicates that the controller is configured externally and that the host + should not attempt to touch it. Usually used by a modem which requires + precise bus configuration. + type: boolean + ulpi: type: object additionalProperties: false -- 2.51.0 -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy