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[103.229.18.19]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2b06e5f1245sm42762805ad.46.2026.03.18.12.08.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Mar 2026 12:08:50 -0700 (PDT) From: Vishnu Saini Date: Thu, 19 Mar 2026 00:38:19 +0530 Subject: [PATCH v4 1/2] arm64: dts: qcom: monaco-evk: add lt8713sx bridge with displayport 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: <20260319-lt8713sx-bridge-linux-for-next-v4-1-da886ec78fe3@oss.qualcomm.com> References: <20260319-lt8713sx-bridge-linux-for-next-v4-0-da886ec78fe3@oss.qualcomm.com> In-Reply-To: <20260319-lt8713sx-bridge-linux-for-next-v4-0-da886ec78fe3@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, Vishnu Saini , prahlad.valluru@oss.qualcomm.com, Prahlad Valluru , Dmitry Baryshkov X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1773860922; l=3881; i=vishnu.saini@oss.qualcomm.com; s=20251113; h=from:subject:message-id; bh=3nCssUwIZ1MwkC5pqisQzM2wmOr64oLbk+2lMKbLk3Q=; b=WidGI3cmGNhQpbpBCwFtfKTl7htFp8z8n0b+gGTl5Rzqr/bmc99bUvb0X5asTyuWOEViuZ/mF SN2g/YSLIQzAEcO4mi3BUNBLGA5PTtQ0CuG69n1PNM5gaXoYgvHoxcr X-Developer-Key: i=vishnu.saini@oss.qualcomm.com; a=ed25519; pk=8hlXlF8j/3GeOaDK3w2LYhkv9FanCQru0c7kRH/It7k= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzE4MDE2NCBTYWx0ZWRfX3BKMbYYo3kj9 uZsgLjhrXJFSISxFziFVYmlOnNl8sNTjz9bFquK7V4SqieMurXB+RnAS9p3CaLHh1kHZJpbyZ6K wc5yztY0Oma2pdgzqP5VEyLRmchHKmsqp0xTm3rr8QZniKkFLN1ToKruKlP1a7hdpwtmf+KjQ0w Dnhf+unpVUR2NHxuTE9UAnE0P/tnCIzEgO1fqPiCqJArcGCHzJ4QzzzvOP3P/w9afGOrN37LzkX 2Mh/aEvVCdXTOpTl1w0CsPsW39+tXu/oljjIwXfOJ1nUCuyc+tVev1CEwgRrD1/pqyKRJLPvRR3 b5nA4bFq6eqmsiJo/NAZcT9dxmL6RUJZmokM2aJ0O0S33+TcGYoGJSk7aTnH92Ejr6ydudYQOQu Hv9JWk6u3SEC7ZWB8gi2eGTDybLliHEeS23Hm67BrKhAvAxV7r6sYihCMDw+EudFV5yI2TTiOEo 5Lqmmuq9ElGUnE3+iSA== X-Proofpoint-ORIG-GUID: Htvyt-AnxK-cMfKZE2qVSoUm2k8yAfm6 X-Authority-Analysis: v=2.4 cv=IbSKmGqa c=1 sm=1 tr=0 ts=69baf844 cx=c_pps a=cmESyDAEBpBGqyK7t0alAg==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=EUspDBNiAAAA:8 a=Ov8SyQ6_pS9HVYgZQC4A:9 a=QEXdDO2ut3YA:10 a=1OuFwYUASf3TG4hYMiVC:22 X-Proofpoint-GUID: Htvyt-AnxK-cMfKZE2qVSoUm2k8yAfm6 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-18_01,2026-03-17_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 suspectscore=0 lowpriorityscore=0 spamscore=0 impostorscore=0 clxscore=1015 adultscore=0 malwarescore=0 phishscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603180164 Monaco-evk has LT8713sx which act as DP to 3 DP output converter. Edp PHY from monaco soc is connected to lt8713sx as input and output of lt8713sx is connected to 3 mini DP ports. Two ports are available in mainboard and one port is available on Mezz board. lt8713sx is connected to soc over i2c0 and with reset gpio connected to pin6 of ioexpander5. Enable the edp nodes from monaco and enable lontium lt8713sx bridge node. Co-developed-by: Prahlad Valluru Signed-off-by: Prahlad Valluru Signed-off-by: Vishnu Saini Reviewed-by: Dmitry Baryshkov Reviewed-by: Konrad Dybcio --- arch/arm64/boot/dts/qcom/monaco-evk.dts | 89 +++++++++++++++++++++++++++++= ++++ arch/arm64/boot/dts/qcom/monaco.dtsi | 6 +++ 2 files changed, 95 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/monaco-evk.dts b/arch/arm64/boot/dts/= qcom/monaco-evk.dts index 0b26cc334a69..0a91e421edbd 100644 --- a/arch/arm64/boot/dts/qcom/monaco-evk.dts +++ b/arch/arm64/boot/dts/qcom/monaco-evk.dts @@ -52,6 +52,30 @@ dmic: audio-codec-0 { num-channels =3D <1>; }; =20 + dp-connector-0 { + compatible =3D "dp-connector"; + label =3D "DP0"; + type =3D "mini"; + + port { + dp0_connector_in: endpoint { + remote-endpoint =3D <<8713sx_dp0_out>; + }; + }; + }; + + dp-connector-1 { + compatible =3D "dp-connector"; + label =3D "DP1"; + type =3D "mini"; + + port { + dp1_connector_in: endpoint { + remote-endpoint =3D <<8713sx_dp1_out>; + }; + }; + }; + max98357a: audio-codec-1 { compatible =3D "maxim,max98357a"; #sound-dai-cells =3D <0>; @@ -355,6 +379,42 @@ &gpu_zap_shader { firmware-name =3D "qcom/qcs8300/a623_zap.mbn"; }; =20 +&i2c0 { + status =3D "okay"; + + bridge@4f { + compatible =3D "lontium,lt8713sx"; + reg =3D <0x4f>; + reset-gpios =3D <&expander5 6 GPIO_ACTIVE_LOW>; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + lt8713sx_dp_in: endpoint { + remote-endpoint =3D <&mdss_dp0_out>; + }; + }; + + port@1 { + reg =3D <1>; + lt8713sx_dp0_out: endpoint { + remote-endpoint =3D <&dp0_connector_in>; + }; + }; + + port@2 { + reg =3D <2>; + lt8713sx_dp1_out: endpoint { + remote-endpoint =3D <&dp1_connector_in>; + }; + }; + }; + }; +}; + &i2c1 { pinctrl-0 =3D <&qup_i2c1_default>; pinctrl-names =3D "default"; @@ -483,6 +543,30 @@ &iris { status =3D "okay"; }; =20 +&mdss { + status =3D "okay"; +}; + +&mdss_dp0 { + pinctrl-0 =3D <&dp_hot_plug_det>; + pinctrl-names =3D "default"; + + status =3D "okay"; +}; + +&mdss_dp0_out { + data-lanes =3D <0 1 2 3>; + link-frequencies =3D /bits/ 64 <1620000000 2700000000 5400000000 81000000= 00>; + remote-endpoint =3D <<8713sx_dp_in>; +}; + +&mdss_dp0_phy { + vdda-phy-supply =3D <&vreg_l5a>; + vdda-pll-supply =3D <&vreg_l4a>; + + status =3D "okay"; +}; + &pcie0 { pinctrl-0 =3D <&pcie0_default_state>; pinctrl-names =3D "default"; @@ -531,6 +615,11 @@ usb2_id: usb2-id-state { }; }; =20 +&qup_i2c0_data_clk { + drive-strength =3D <2>; + bias-pull-up; +}; + &qupv3_id_0 { firmware-name =3D "qcom/qcs8300/qupv3fw.elf"; status =3D "okay"; diff --git a/arch/arm64/boot/dts/qcom/monaco.dtsi b/arch/arm64/boot/dts/qco= m/monaco.dtsi index f92fdb1cefa0..5741cdbde3f5 100644 --- a/arch/arm64/boot/dts/qcom/monaco.dtsi +++ b/arch/arm64/boot/dts/qcom/monaco.dtsi @@ -5893,6 +5893,12 @@ tlmm: pinctrl@f100000 { #interrupt-cells =3D <2>; wakeup-parent =3D <&pdc>; =20 + dp_hot_plug_det: dp-hot-plug-det-state { + pins =3D "gpio94"; + function =3D "edp0_hot"; + bias-disable; + }; + hs0_mi2s_active: hs0-mi2s-active-state { pins =3D "gpio106", "gpio107", "gpio108", "gpio109"; function =3D "hs0_mi2s"; --=20 2.34.1 From nobody Mon Apr 6 16:48:28 2026 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2DD6A3EF679 for ; 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Signed-off-by: Vishnu Saini --- arch/arm64/configs/defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 1d967a81b82a..57ea37e4d9ac 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -1005,6 +1005,7 @@ CONFIG_DRM_ITE_IT6263=3Dm CONFIG_DRM_LONTIUM_LT8912B=3Dm CONFIG_DRM_LONTIUM_LT9611=3Dm CONFIG_DRM_LONTIUM_LT9611UXC=3Dm +CONFIG_DRM_LONTIUM_LT8713SX=3Dm CONFIG_DRM_ITE_IT66121=3Dm CONFIG_DRM_NWL_MIPI_DSI=3Dm CONFIG_DRM_PARADE_PS8640=3Dm --=20 2.34.1