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Thu, 16 Jul 2026 12:30:30 -0700 (PDT) X-Received: by 2002:a05:6a20:6a09:b0:3c0:9c19:65a4 with SMTP id adf61e73a8af0-3c36c465036mr9190040637.76.1784230230267; Thu, 16 Jul 2026 12:30:30 -0700 (PDT) Received: from hu-mdsor-hyd.qualcomm.com ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3140e6c2b17sm21468394eec.25.2026.07.16.12.30.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 Jul 2026 12:30:29 -0700 (PDT) From: mohit.dsor@oss.qualcomm.com Date: Fri, 17 Jul 2026 01:00:13 +0530 Subject: [PATCH v2 1/2] arm64: dts: qcom: shikra-iqs-evk: Add LT9611UXD HDMI bridge support 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: <20260717-shikra-work-v2-1-86ae8552259e@oss.qualcomm.com> References: <20260717-shikra-work-v2-0-86ae8552259e@oss.qualcomm.com> In-Reply-To: <20260717-shikra-work-v2-0-86ae8552259e@oss.qualcomm.com> To: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-kernel@vger.kernel.org, Mohit Dsor , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, venkata.valluru@oss.qualcomm.com, Jessica Zhang , Mohit Dsor X-Mailer: b4 0.15.2 X-Proofpoint-ORIG-GUID: DHbWBhFClbyTnjMshb1rPU5HewwozKO- X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzE2MDE5OSBTYWx0ZWRfX7+Gftej+EYEV A6axQ9J7UuQ51BjWKuA2UmjWR8e+CnFTnpnePdhdm9uBDA3FkYxvNfyWKettx7stjmQ89bU6FbX /Uu3X0K9+xuNlpTsOEl0SkU2u4RNN3EXaQC+Iw/8eEFnUW04JXlVgXdX9rUZGbnKLCkoPYZDjv3 i+IBNW/9ooteAjhxqDK5VvBBHdrcPiGIfZVwAH09lERIBsBo1QDVW7gNiDQKjBnQb/ejOpsXK4v MvIWl7lYMl7zrHhcVSkc6VDZLtOI5IXBUtHqYqth3xqtJf34AqzfeFAo/Ai2IserVktWUWaCtOI fkuNZ4E9wu2tfYmm52SoQzs0A3L+aWLK/NkZkD8m33zUo0AOFUaTAaUkh576+eOA4BLXX5KNo+m BdrT+/5eMzPhOJ5g6kp1mSC5PBYjXLGQZ8jPuI0v7uGj4XD6dQezdPB0EEkBG4+pRg5AJ1rAKFu 9i6aPZoqKUKxI65Yo3w== X-Proofpoint-GUID: DHbWBhFClbyTnjMshb1rPU5HewwozKO- X-Authority-Analysis: v=2.4 cv=BPODalQG c=1 sm=1 tr=0 ts=6a593157 cx=c_pps a=oF/VQ+ItUULfLr/lQ2/icg==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=EUspDBNiAAAA:8 a=Dh2IlRrSrxxA8ivr3KQA:9 a=QEXdDO2ut3YA:10 a=3WC7DwWrALyhR5TkjVHa:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzE2MDE5OSBTYWx0ZWRfX5gyWojPAjH0H HNtr+6dDiA69tqEBzedSToWMmd2DaqOGFRytQ8fIpozXZKZOC9RI6ox+sipMZ+qxVRh+7I3N/Oa PbQoG2Mu5Xt2aZS6X8EBLbQMhC1l2uk= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-16_06,2026-07-15_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 suspectscore=0 lowpriorityscore=0 adultscore=0 malwarescore=0 priorityscore=1501 phishscore=0 bulkscore=0 spamscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607160199 From: Mohit Dsor Enable the Shikra MDSS display subsystem on the Qualcomm Shikra IQS EVK board and add the Lontium LT9611UXD DSI-to-HDMI bridge node. The LT9611UXD is connected via I2C (bus 4, address 0x41), powered by a GPIO-controlled 3.3V regulator (PM8150 GPIO4) and an always-on 1.8V rail. Reset is on GPIO76 and interrupt on GPIO85. The bridge receives DSI output from MDSS and drives an HDMI-A connector, with the link wired as: DPU -> DSI0 -> LT9611UXD -> HDMI. Signed-off-by: Mohit Dsor --- arch/arm64/boot/dts/qcom/shikra-iqs-evk.dts | 118 ++++++++++++++++++++++++= ++++ 1 file changed, 118 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/shikra-iqs-evk.dts b/arch/arm64/boot/= dts/qcom/shikra-iqs-evk.dts index 3a6962388dfd..9e602b5d4776 100644 --- a/arch/arm64/boot/dts/qcom/shikra-iqs-evk.dts +++ b/arch/arm64/boot/dts/qcom/shikra-iqs-evk.dts @@ -7,6 +7,8 @@ =20 #include "shikra-iqs-som.dtsi" #include "shikra-evk.dtsi" +#include +#include =20 / { model =3D "Qualcomm Technologies, Inc. Shikra IQS EVK"; @@ -21,6 +23,107 @@ aliases { chosen { stdout-path =3D "serial0:115200n8"; }; + + hdmi-connector { + compatible =3D "hdmi-connector"; + type =3D "a"; + + port { + hdmi_con: endpoint { + remote-endpoint =3D <<9611_out>; + }; + }; + }; + + vreg_lt9611_vcc: regulator-lt9611-vcc { + compatible =3D "regulator-fixed"; + regulator-name =3D "lt9611_vcc"; + regulator-min-microvolt =3D <3300000>; + regulator-max-microvolt =3D <3300000>; + gpio =3D <&pm8150_gpios 4 GPIO_ACTIVE_HIGH>; + enable-active-high; + pinctrl-0 =3D <&hdmi_reg_en>; + pinctrl-names =3D "default"; + }; + + vreg_lt9611_vdd: regulator-lt9611-vdd { + compatible =3D "regulator-fixed"; + regulator-name =3D "lt9611_vdd"; + regulator-min-microvolt =3D <1800000>; + regulator-max-microvolt =3D <1800000>; + regulator-always-on; + }; +}; + +&i2c4 { + status =3D "okay"; + + lt9611uxd: lt9611uxd@41 { + compatible =3D "lontium,lt9611uxd"; + reg =3D <0x41>; + interrupts-extended =3D <&tlmm 85 IRQ_TYPE_EDGE_FALLING>; + reset-gpios =3D <&tlmm 76 GPIO_ACTIVE_LOW>; + vcc-supply =3D <&vreg_lt9611_vcc>; + vdd-supply =3D <&vreg_lt9611_vdd>; + + pinctrl-0 =3D <<9611_irq_pin <9611_rst_pin>; + pinctrl-names =3D "default"; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + + lt9611_a: endpoint { + remote-endpoint =3D <&mdss_dsi0_out>; + }; + }; + + port@2 { + reg =3D <2>; + + lt9611_out: endpoint { + remote-endpoint =3D <&hdmi_con>; + }; + }; + }; + }; +}; + +&mdss { + status =3D "okay"; +}; + +&mdss_dsi0 { + vdda-supply =3D <&pm8150_l11>; + + status =3D "okay"; +}; + +&mdss_dsi0_out { + remote-endpoint =3D <<9611_a>; + data-lanes =3D <0 1 2 3>; +}; + +&mdss_dsi0_phy { + status =3D "okay"; +}; + +&pm8150_gpios { + hdmi_reg_en: hdmi-reg-en-state { + pins =3D "gpio4"; + function =3D PMIC_GPIO_FUNC_NORMAL; + bias-disable; + }; +}; + +&pm8150_l11 { + /* DSI VDDA - must be at NOM voltage for PHY PLL lock */ + regulator-min-microvolt =3D <1232000>; + regulator-max-microvolt =3D <1232000>; + regulator-allow-set-load; }; 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Thu, 16 Jul 2026 12:30:34 -0700 (PDT) X-Received: by 2002:a05:6a20:6a20:b0:3b4:61f:1fec with SMTP id adf61e73a8af0-3c35731bc86mr13657992637.2.1784230234345; Thu, 16 Jul 2026 12:30:34 -0700 (PDT) Received: from hu-mdsor-hyd.qualcomm.com ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3140e6c2b17sm21468394eec.25.2026.07.16.12.30.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 Jul 2026 12:30:34 -0700 (PDT) From: mohit.dsor@oss.qualcomm.com Date: Fri, 17 Jul 2026 01:00:14 +0530 Subject: [PATCH v2 2/2] arm64: defconfig: Enable LT9611C bridge driver 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: <20260717-shikra-work-v2-2-86ae8552259e@oss.qualcomm.com> References: <20260717-shikra-work-v2-0-86ae8552259e@oss.qualcomm.com> In-Reply-To: <20260717-shikra-work-v2-0-86ae8552259e@oss.qualcomm.com> To: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-kernel@vger.kernel.org, Mohit Dsor , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, venkata.valluru@oss.qualcomm.com, Jessica Zhang , Mohit Dsor X-Mailer: b4 0.15.2 X-Proofpoint-GUID: i7KzwCjMvyqOhwybpAGqAW3s51RorRWE X-Proofpoint-ORIG-GUID: i7KzwCjMvyqOhwybpAGqAW3s51RorRWE X-Proofpoint-Spam-Info: AW1haW4tMjYwNzE2MDE5OSBTYWx0ZWRfX2JIusd/X8pvX bO6FjLBbRAH1Xj33rrfHmtJLOyYt83pjZPzO3obIVG7VFJP7qyd+DN6E9j6YQdnIeWioZGGGeKZ ZY+pzcX1RQ0UVKARLRKtxOY3S7p6FUg= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzE2MDE5OSBTYWx0ZWRfX2U9MjHNu19a7 dXILhfyJJuzCCbn7y8fdnWfptPRfT8HFdIIMr4xRI51JZm1lKCWRw+ffgYFKRycnrcf7vlx887q aZlG5GQfRJ2P7XxlQSZesSen/O29BURI1CQQQRN43xNtLaG24CWc6dyhKdaxepx6UH81z/jNGSK o/Ghh30nG0FvfpO67QEOJcrYDCIT3zgacQCTf+mr0tQSUIeFVE6b6mI1Wz8/fmGF7jIlAMV22wO 59cGguNiOLLw1XKZaODCODFmOOUlRAE0dGzMpcRdP0eVdOjV2mGpTWfXMlOhPH05X3ulCzyxU3d uo6klScFyKG4CU/7x6ewmsN21dG3RnynkJZ29KaPRXPh6hxoYWLnPD4WUh2MtqZW3AqxRZaZjfP r3F7nZ+cgXd4vxQNkNYXC608vJQZvfl3Gb6hPDlK18pF56jbBiGs/IEybYVY9Y6+maitnFjhCN/ UDs63vE/VGLAtB28/Mg== X-Authority-Analysis: v=2.4 cv=TL11jVla c=1 sm=1 tr=0 ts=6a59315b cx=c_pps a=WW5sKcV1LcKqjgzy2JUPuA==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=EUspDBNiAAAA:8 a=JLjO1t5ekhtB3RsVtqAA:9 a=QEXdDO2ut3YA:10 a=OpyuDcXvxspvyRM73sMx:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-16_06,2026-07-15_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 priorityscore=1501 clxscore=1015 lowpriorityscore=0 spamscore=0 bulkscore=0 malwarescore=0 suspectscore=0 adultscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607160199 From: Mohit Dsor Enable the Lontium LT9611C DSI-to-HDMI bridge driver as a module. This driver supports the LT9611UXD chip used on the Shikra IQS EVK board to provide HDMI output via the MDSS DSI interface. Signed-off-by: Mohit Dsor --- arch/arm64/configs/defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index e1d8e65782d0..8a6922199545 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -965,6 +965,7 @@ CONFIG_DRM_I2C_NXP_TDA998X=3Dm CONFIG_DRM_ITE_IT6263=3Dm CONFIG_DRM_LONTIUM_LT8912B=3Dm CONFIG_DRM_LONTIUM_LT9611=3Dm +CONFIG_DRM_LONTIUM_LT9611C=3Dm CONFIG_DRM_LONTIUM_LT9611UXC=3Dm CONFIG_DRM_LONTIUM_LT8713SX=3Dm CONFIG_DRM_ITE_IT66121=3Dm --=20 2.34.1