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Wed, 17 Dec 2025 22:24:32 -0800 (PST) Received: from hu-botlagun-hyd.qualcomm.com ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7fe0eb24d7dsm1433161b3a.0.2025.12.17.22.24.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 17 Dec 2025 22:24:32 -0800 (PST) From: Venkata Gopi Nagaraju Botlagunta Date: Thu, 18 Dec 2025 11:54:07 +0530 Subject: [PATCH v3 1/2] dt-bindings: bridge: lt9211c: Add bindings Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251218-add-lt9211c-bridge-v3-1-1ee0670a0db2@oss.qualcomm.com> References: <20251218-add-lt9211c-bridge-v3-0-1ee0670a0db2@oss.qualcomm.com> In-Reply-To: <20251218-add-lt9211c-bridge-v3-0-1ee0670a0db2@oss.qualcomm.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Marek Vasut Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Gopi Botlagunta , Nilesh Laad , venkata.valluru@oss.qualcomm.com, jessica.zhang@oss.qualcomm.com, Yi Zhang X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; 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Signed-off-by: Yi Zhang Signed-off-by: Nilesh Laad Signed-off-by: Gopi Botlagunta --- .../bindings/display/bridge/lontium,lt9211c.yaml | 113 +++++++++++++++++= ++++ 1 file changed, 113 insertions(+) diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt921= 1c.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt9211c.= yaml new file mode 100644 index 000000000000..619f718618d6 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt9211c.yaml @@ -0,0 +1,113 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/lontium,lt9211c.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Lontium LT9211C DSI/LVDS/DPI to DSI/LVDS/DPI bridge. + +maintainers: + - Marek Vasut + +description: | + The LT9211C are bridge devices which convert Single/Dual-Link DSI/LVDS + or Single DPI to Single/Dual-Link DSI/LVDS or Single DPI. + +properties: + compatible: + enum: + - lontium,lt9211c + + reg: + maxItems: 1 + + reset-gpios: + maxItems: 1 + description: GPIO connected to active high RESET pin. + + vccio-supply: + description: Regulator for 1.8V IO power. + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: + Primary MIPI DSI port-1 for MIPI input or + LVDS port-1 for LVDS input or DPI input. + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: + Additional MIPI port-2 for MIPI input or LVDS port-2 + for LVDS input. Used in combination with primary + port-1 to drive higher resolution displays + + port@2: + $ref: /schemas/graph.yaml#/properties/port + description: + Primary MIPI DSI port-1 for MIPI output or + LVDS port-1 for LVDS output or DPI output. + + port@3: + $ref: /schemas/graph.yaml#/properties/port + description: + Additional MIPI port-2 for MIPI output or LVDS port-2 + for LVDS output. Used in combination with primary + port-1 to drive higher resolution displays. + + required: + - port@0 + - port@2 + +required: + - compatible + - reg + - vccio-supply + - ports + +additionalProperties: false + +examples: + - | + #include + #include + + i2c { + #address-cells =3D <1>; + #size-cells =3D <0>; + + lvds-bridge@3b { + compatible =3D "lontium,lt9211c"; + reg =3D <0x3b>; + + reset-gpios =3D <&tlmm 128 GPIO_ACTIVE_HIGH>; + + vccio-supply =3D <<9211c_1v8>; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + + endpoint { + remote-endpoint =3D <&dsi0_out>; + }; + }; + + port@2 { + reg =3D <2>; + + endpoint { + remote-endpoint =3D <&panel_in_lvds>; + }; + }; + }; + }; + }; + +... --=20 2.34.1