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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> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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