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[103.229.18.19]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2b05db37a8esm58125785ad.29.2026.03.16.23.04.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Mar 2026 23:04:46 -0700 (PDT) From: Vishnu Saini Date: Tue, 17 Mar 2026 11:33:57 +0530 Subject: [PATCH 1/2] arm64: dts: qcom: monaco: 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: <20260317-lt8713sx_dt_for_next-v1-1-8195fa931ff1@oss.qualcomm.com> References: <20260317-lt8713sx_dt_for_next-v1-0-8195fa931ff1@oss.qualcomm.com> In-Reply-To: <20260317-lt8713sx_dt_for_next-v1-0-8195fa931ff1@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=1773727478; l=3877; i=vishnu.saini@oss.qualcomm.com; s=20251113; h=from:subject:message-id; bh=GEL+TA7V3NdHVj+Mv3DZJSo4L1+dX9066zDxSvGYUJw=; b=xdHWSUItY5wA1RifoyHqnyiom8sEpOKbWdtLgC4994XqFTKSXhqBYUSnai1Eu/dW1+ChAO32D g2aDpAB7AoOA1jXzJaErSsov0kXq0QBDFlTdRmX1/h5oUPThelOv+9l X-Developer-Key: i=vishnu.saini@oss.qualcomm.com; a=ed25519; pk=8hlXlF8j/3GeOaDK3w2LYhkv9FanCQru0c7kRH/It7k= X-Authority-Analysis: v=2.4 cv=c7+mgB9l c=1 sm=1 tr=0 ts=69b8ef00 cx=c_pps a=MTSHoo12Qbhz2p7MsH1ifg==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=EUspDBNiAAAA:8 a=Ov8SyQ6_pS9HVYgZQC4A:9 a=QEXdDO2ut3YA:10 a=GvdueXVYPmCkWapjIL-Q:22 X-Proofpoint-ORIG-GUID: hj78ASLc1rpe5VUucZeveeunr3NMJQk5 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzE3MDA1MCBTYWx0ZWRfX+RDCYrAS608V fnMhbJRWuaiAH/6VY5XHdjJgpdXss0ynY78OtBrY6CoqGlbSOP12njmXIcuaU9dR89yN8GkAps0 cYbb8Tj9kuEDN24DwYz8U36BDdjDJ3z7dM7wp49RX7hKzL83RGazl4CtiK0v50UUTgiufYm/CuU 7WFgPY1RSlAii3o97Vxt2Ox4LDUjSJkzHWawBTDBL0j/E1+1HCUsO2WHmLTwYifD1PL04LvW8Jt dMH18xRLbisvz9WOsyh3kbz3TzgzCqc14c67ffYirvEVzSXLkjj0IpRS4IeymzVp5Kjww3pXoWN MRjXXsnpecxmlp+vtt3efJqteiwsTlUqQ7sDyyykWDTCpS2mfQTbB+TyltuAE74+Cgna4SkhNhO +pNZbGlWFE8jnP2cQAb4RALX2BDxAgYMRYKYHnnusdk0XSLYO8zufWlRJoqlVm8P8riQxtEjuqx 8Ya7UO7Y4QwAt7RqJww== X-Proofpoint-GUID: hj78ASLc1rpe5VUucZeveeunr3NMJQk5 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=2026-03-17_01,2026-03-16_06,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 bulkscore=0 priorityscore=1501 suspectscore=0 phishscore=0 clxscore=1015 lowpriorityscore=0 spamscore=0 malwarescore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603170050 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 --- 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..0ca5615c996d 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-connector0 { + compatible =3D "dp-connector"; + label =3D "DP"; + type =3D "mini"; + + port { + dp0_connector_in: endpoint { + remote-endpoint =3D <<8713sx_dp0_out>; + }; + }; + }; + + dp-connector1 { + compatible =3D "dp-connector"; + label =3D "DP"; + 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 Tue Apr 7 02:38:45 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 B51491D5CDE 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..c8f89c87672b 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -1002,6 +1002,7 @@ CONFIG_DRM_PANEL_VISIONOX_VTDR6130=3Dm CONFIG_DRM_DISPLAY_CONNECTOR=3Dm CONFIG_DRM_FSL_LDB=3Dm CONFIG_DRM_ITE_IT6263=3Dm +CONFIG_DRM_LONTIUM_LT8713SX=3Dm CONFIG_DRM_LONTIUM_LT8912B=3Dm CONFIG_DRM_LONTIUM_LT9611=3Dm CONFIG_DRM_LONTIUM_LT9611UXC=3Dm --=20 2.34.1