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[176.79.113.208]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48e530d8691sm42893115e9.2.2026.05.06.07.34.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 May 2026 07:34:35 -0700 (PDT) From: Vitor Soares To: Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Francesco Dolcini Cc: Vitor Soares , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v1] arm64: dts: ti: k3-am62-verdin: Add DSI to HDMI adapter overlay Date: Wed, 6 May 2026 15:34:26 +0100 Message-ID: <20260506143427.348806-2-ivitro@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Vitor Soares Add a device-tree overlay for the Toradex DSI to HDMI Adapter, an accessory that connects to the Verdin DSI_1 interface and provides a full-size HDMI Type-A output. The adapter is based on the Lontium LT8912B DSI-to-HDMI bridge. The overlay is also combined with the Verdin AM62 carrier board device trees to provide ready-to-use DTBs for the Dahlia and Development Board carriers, in both WiFi and non-WiFi SoM variants. Link: https://developer.toradex.com/hardware/accessories/add-ons/dsi-hdmi-adapter Signed-off-by: Vitor Soares --- arch/arm64/boot/dts/ti/Makefile | 13 +++ .../dts/ti/k3-am625-verdin-dsi-to-hdmi.dtso | 94 +++++++++++++++++++ 2 files changed, 107 insertions(+) create mode 100644 arch/arm64/boot/dts/ti/k3-am625-verdin-dsi-to-hdmi.dtso diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index 7642c06ca834..21db60cd19de 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -9,19 +9,32 @@ # alphabetically. # Boards with AM62x SoC +k3-am625-verdin-nonwifi-dahlia-dsi-to-hdmi-dtbs := k3-am625-verdin-nonwifi-dahlia.dtb \ + k3-am625-verdin-dsi-to-hdmi.dtbo +k3-am625-verdin-nonwifi-dev-dsi-to-hdmi-dtbs := k3-am625-verdin-nonwifi-dev.dtb \ + k3-am625-verdin-dsi-to-hdmi.dtbo +k3-am625-verdin-wifi-dahlia-dsi-to-hdmi-dtbs := k3-am625-verdin-wifi-dahlia.dtb \ + k3-am625-verdin-dsi-to-hdmi.dtbo +k3-am625-verdin-wifi-dev-dsi-to-hdmi-dtbs := k3-am625-verdin-wifi-dev.dtb \ + k3-am625-verdin-dsi-to-hdmi.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am625-beagleplay.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-beagleplay-csi2-ov5640.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am625-beagleplay-csi2-tevi-ov5640.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am625-phyboard-lyra-rdk.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-sk.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-tqma62xx-mba62xx.dtb +dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-dsi-to-hdmi.dtbo +dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-nonwifi-dahlia-dsi-to-hdmi.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-nonwifi-dahlia.dtb +dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-nonwifi-dev-dsi-to-hdmi.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-nonwifi-dev.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-nonwifi-ivy.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-nonwifi-mallow.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-nonwifi-yavia.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-nonwifi-zinnia.dtb +dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-dahlia-dsi-to-hdmi.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-dahlia.dtb +dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-dev-dsi-to-hdmi.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-dev.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-ivy.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-mallow.dtb diff --git a/arch/arm64/boot/dts/ti/k3-am625-verdin-dsi-to-hdmi.dtso b/arch/arm64/boot/dts/ti/k3-am625-verdin-dsi-to-hdmi.dtso new file mode 100644 index 000000000000..a219faf0dcc6 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am625-verdin-dsi-to-hdmi.dtso @@ -0,0 +1,94 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT +/* + * Copyright (c) Toradex + * + * Toradex DSI to HDMI Adapter on Verdin DSI_1 + * + * https://developer.toradex.com/hardware/accessories/add-ons/dsi-hdmi-adapter + */ + +/dts-v1/; +/plugin/; + +#include + +&{/} { + hdmi-connector { + compatible = "hdmi-connector"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pwm3_dsi_gpio>; + ddc-i2c-bus = <&main_i2c2>; + /* Verdin PWM_3_DSI (SODIMM 19) */ + hpd-gpios = <&main_gpio1 17 GPIO_ACTIVE_HIGH>; + type = "a"; + + port { + hdmi_connector_in: endpoint { + remote-endpoint = <&dsi_hdmi_bridge_out>; + }; + }; + }; +}; + +&dsi_bridge { + status = "okay"; +}; + +&dsi_bridge_ports { + #address-cells = <1>; + #size-cells = <0>; + + port@1 { + reg = <1>; + + dsi_bridge_out: endpoint { + remote-endpoint = <&dsi_hdmi_bridge_in>; + }; + }; +}; + +&dss { + status = "okay"; +}; + +/* Verdin PWM_3_DSI (SODIMM 19) repurposed as HDMI HPD GPIO */ +&epwm1 { + status = "disabled"; +}; + +/* Verdin I2C_1 */ +&main_i2c1 { + #address-cells = <1>; + #size-cells = <0>; + + hdmi@48 { + compatible = "lontium,lt8912b"; + reg = <0x48>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_dsi1_bkl_en>; + /* Verdin GPIO_10_DSI (SODIMM 21) */ + reset-gpios = <&main_gpio0 30 GPIO_ACTIVE_LOW>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + dsi_hdmi_bridge_in: endpoint { + data-lanes = <1 2 3 4>; + remote-endpoint = <&dsi_bridge_out>; + }; + }; + + port@1 { + reg = <1>; + + dsi_hdmi_bridge_out: endpoint { + remote-endpoint = <&hdmi_connector_in>; + }; + }; + }; + }; +}; -- 2.53.0