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Wed, 12 Nov 2025 06:48:30 -0800 (PST) Received: from hu-botlagun-hyd.qualcomm.com ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7b0cc17b0c4sm19098234b3a.48.2025.11.12.06.48.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Nov 2025 06:48:30 -0800 (PST) From: Gopi Botlagunta Date: Wed, 12 Nov 2025 20:18:11 +0530 Subject: [PATCH 1/2] arm64: dts: qcom: Enable lvds panel-DV215FHM-R01 for rb3gen2 industrial mezzanine 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: <20251112-add-lt9211c-bridge-for-rb3gen2-industrial-mezzanine-v1-1-6eab844ec3ac@oss.qualcomm.com> References: <20251112-add-lt9211c-bridge-for-rb3gen2-industrial-mezzanine-v1-0-6eab844ec3ac@oss.qualcomm.com> In-Reply-To: <20251112-add-lt9211c-bridge-for-rb3gen2-industrial-mezzanine-v1-0-6eab844ec3ac@oss.qualcomm.com> To: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Gopi Botlagunta , 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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DSI0 --> SW1403.4 --> LT9611uxc --> hdmi port | --> SW2700.1 --> dsi connector | --> LT9211c --> LVDS connector Disable hdmi connector for industrial mezzanine and enable LT9211c bridge and lvds panel node. LT9211c is powered by default with reset gpio connected to 117. Signed-off-by: Yi Zhang Signed-off-by: Gopi Botlagunta --- .../qcom/qcs6490-rb3gen2-industrial-mezzanine.dtso | 106 +++++++++++++++++= ++++ 1 file changed, 106 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine.= dtso b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine.dtso index 619a42b5ef48..cc8ee1643167 100644 --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine.dtso +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine.dtso @@ -8,6 +8,112 @@ #include #include =20 +/ { + + hdmi-connector { + status =3D "disabled"; + }; + + panel_lvds: panel-lvds@0 { + compatible =3D "panel-lvds"; + data-mapping =3D "vesa-24"; + width-mm =3D <476>; + height-mm =3D <268>; + + status =3D "okay"; + + panel-timing { + clock-frequency =3D <148500000>; + hactive =3D <1920>; + vactive =3D <1080>; + hfront-porch =3D <88>; + hback-porch =3D <148>; + hsync-len =3D <44>; + vfront-porch =3D <4>; + vback-porch =3D <36>; + vsync-len =3D <5>; + de-active =3D <1>; + }; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + + dual-lvds-odd-pixels; + panel_in_lvds_odd: endpoint { + remote-endpoint =3D <<9211c_out_odd>; + }; + }; + + port@1 { + reg =3D <1>; + + dual-lvds-even-pixels; + panel_in_lvds_even: endpoint { + remote-endpoint =3D <<9211c_out_even>; + }; + + }; + }; + }; + +}; + +&i2c1 { + status =3D "okay"; + + lvds_bridge: lvds-bridge@29 { + compatible =3D "lontium,lt9211c"; + reg =3D <0x29>; + reset-gpios =3D <&tlmm 117 1>; + + status =3D "okay"; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + + lt9211c_in: endpoint { + data-lanes =3D <0 1 2 3>; + remote-endpoint =3D <&mdss_dsi0_out>; + }; + }; + + port@2 { + reg =3D <2>; + + lt9211c_out_odd: endpoint { + remote-endpoint =3D <&panel_in_lvds_odd>; + }; + }; + + port@3 { + reg =3D <3>; + + lt9211c_out_even: endpoint { + remote-endpoint =3D <&panel_in_lvds_even>; + }; + }; + }; + }; + + +}; + +<9611_codec { + status =3D "disabled"; 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Signed-off-by: Yi Zhang Signed-off-by: Gopi Botlagunta --- arch/arm64/configs/defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 00d15233a72b..1d35af618159 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -959,6 +959,7 @@ CONFIG_DRM_DISPLAY_CONNECTOR=3Dm CONFIG_DRM_FSL_LDB=3Dm CONFIG_DRM_ITE_IT6263=3Dm CONFIG_DRM_LONTIUM_LT8912B=3Dm +CONFIG_DRM_LONTIUM_LT9211C=3Dm CONFIG_DRM_LONTIUM_LT9611=3Dm CONFIG_DRM_LONTIUM_LT9611UXC=3Dm CONFIG_DRM_ITE_IT66121=3Dm --=20 2.34.1