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arm64: dts: ti: k3-am69-aquila: Add Toradex DSI to HDMI Adapter

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Add a device tree overlay for the Toradex DSI to HDMI Adapter on the
Aquila AM69 DSI_1 interface. Used on Aquila Development Board (J44),
where DSI_1 is exposed via a Samtec LSS-130 connector.

The adapter is based on the Lontium LT8912B DSI-to-HDMI bridge.

Link: https://developer.toradex.com/hardware/accessories/add-ons/dsi-hdmi-adapter
Signed-off-by: Vitor Soares <vitor.soares@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://patch.msgid.link/20260602115123.1324474-10-ivitro@gmail.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
This commit is contained in:
Vitor Soares 2026-06-02 12:51:24 +01:00 committed by Vignesh Raghavendra
parent fbc32d0ea1
commit 9199488ead
2 changed files with 119 additions and 0 deletions
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4
arch/arm64/boot/dts/ti/Makefile
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@ -191,8 +191,12 @@ dtb-$(CONFIG_ARCH_K3) += k3-j722s-evm-csi2-quad-rpi-cam-imx219.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-j722s-evm-csi2-quad-tevi-ov5640.dtbo
# Boards with J784s4 SoC
k3-am69-aquila-dev-dsi-to-hdmi-dtbs := k3-am69-aquila-dev.dtb \
k3-am69-aquila-dsi-to-hdmi.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-clover.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-dev.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-dev-dsi-to-hdmi.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-dsi-to-hdmi.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am69-sk.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am69-sk-pcie0-ep.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm.dtb

115
arch/arm64/boot/dts/ti/k3-am69-aquila-dsi-to-hdmi.dtso Normal file
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@ -0,0 +1,115 @@
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/*
* Copyright (c) Toradex
*
* Toradex DSI to HDMI Adapter on Aquila AM69 DSI_1.
* Used on Development Board (J44), DSI_1 is exposed via a Samtec LSS-130 connector.
*
* https://developer.toradex.com/hardware/accessories/add-ons/dsi-hdmi-adapter
*/
/dts-v1/;
/plugin/;
#include <dt-bindings/gpio/gpio.h>
&{/} {
hdmi-connector {
compatible = "hdmi-connector";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pwm3_dsi_gpio>;
ddc-i2c-bus = <&i2c_dsi_1>;
/* Aquila PWM_3_DSI (AQUILA B46) */
hpd-gpios = <&main_gpio0 33 GPIO_ACTIVE_HIGH>;
type = "a";
port {
hdmi_connector_in: endpoint {
remote-endpoint = <&dsi_hdmi_bridge_out>;
};
};
};
};
&dphy_tx0 {
status = "okay";
};
&dsi0 {
status = "okay";
};
&dsi0_ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
dsi0_out: endpoint {
remote-endpoint = <&dsi_hdmi_bridge_in>;
};
};
port@1 {
reg = <1>;
dsi0_in: endpoint {
remote-endpoint = <&dpi2_out>;
};
};
};
&dss_ports {
#address-cells = <1>;
#size-cells = <0>;
port@2 {
reg = <2>;
dpi2_out: endpoint {
remote-endpoint = <&dsi0_in>;
};
};
};
/* Aquila PWM_3_DSI (AQUILA B46) repurposed as HDMI HPD GPIO */
&main_ehrpwm5 {
status = "disabled";
};
&i2c_dsi_0 {
#address-cells = <1>;
#size-cells = <0>;
hdmi@48 {
compatible = "lontium,lt8912b";
reg = <0x48>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_gpio_20_dsi_1>;
/* Aquila GPIO_20_DSI_1 (AQUILA B45) */
reset-gpios = <&main_gpio0 18 GPIO_ACTIVE_LOW>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
dsi_hdmi_bridge_in: endpoint {
remote-endpoint = <&dsi0_out>;
data-lanes = <1 2 3 4>;
};
};
port@1 {
reg = <1>;
dsi_hdmi_bridge_out: endpoint {
remote-endpoint = <&hdmi_connector_in>;
};
};
};
};
};