Subject: [PATCH v2 4/7] arm64: dts: ti: k3-am69-aquila: Add Toradex Capacitive Touch Display 7" DSI with adapter

From: Vitor Soares <[email-masked]>
Date: Tue, 2 Jun 2026 12:51:27 +0100

From: Vitor Soares <[email-masked]>

Add a device tree overlay for the Toradex Capacitive Touch Display 7" DSI
used with the Toradex DSI Display Adapter on the Aquila Development Board.
On this board, DSI_1 is exposed on connector J44 through a Samtec LSS-130
connector, and the adapter converts it to an FFC/FPC connector.

The display includes an internal Texas Instruments SN65DSI83 DSI-to-LVDS
bridge driving a Riverdi RVT70HSLNWCA0 7" WSVGA IPS TFT LCD panel. Touch
input is provided by an Ilitek ILI2132 capacitive touch controller.

Link: https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-7inch-dsi
Link: https://developer.toradex.com/hardware/accessories/add-ons/dsi-display-adapter
Signed-off-by: Vitor Soares <[email-masked]>
---
 arch/arm64/boot/dts/ti/Makefile               |   5 +
 ...ila-adapter-panel-cap-touch-7inch-dsi.dtso | 155 ++++++++++++++++++
 2 files changed, 160 insertions(+)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am69-aquila-adapter-panel-cap-touch-7inch-dsi.dtso

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 966cec4c5b6e..c145cc4ca7fc 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -193,6 +193,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-j722s-evm-csi2-quad-tevi-ov5640.dtbo
 k3-am69-aquila-dev-dsi-to-hdmi-dtbs := k3-am69-aquila-dev.dtb \
 	k3-am69-aquila-dsi-to-hdmi.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-adapter-panel-cap-touch-10inch-dsi.dtbo
+dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-adapter-panel-cap-touch-7inch-dsi.dtbo
 dtb-$(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
@@ -315,6 +316,9 @@ k3-am68-sk-base-board-pcie1-ep-dtbs := k3-am68-sk-base-board.dtb \
 k3-am69-aquila-dev-adapter-panel-cap-touch-10inch-dsi-dtbs := \
 	k3-am69-aquila-dev.dtb \
 	k3-am69-aquila-adapter-panel-cap-touch-10inch-dsi.dtbo
+k3-am69-aquila-dev-adapter-panel-cap-touch-7inch-dsi-dtbs := \
+	k3-am69-aquila-dev.dtb \
+	k3-am69-aquila-adapter-panel-cap-touch-7inch-dsi.dtbo
 k3-am69-aquila-dev-dsi-to-lvds-panel-cap-touch-10inch-dtbs := \
 	k3-am69-aquila-dev.dtb \
 	k3-am69-aquila-dsi-to-lvds-panel-cap-touch-10inch.dtbo
@@ -402,6 +406,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
 	k3-am68-sk-base-board-csi2-dual-imx219.dtb \
 	k3-am68-sk-base-board-pcie1-ep.dtb \
 	k3-am69-aquila-dev-adapter-panel-cap-touch-10inch-dsi.dtb \
+	k3-am69-aquila-dev-adapter-panel-cap-touch-7inch-dsi.dtb \
 	k3-am69-aquila-dev-dsi-to-lvds-panel-cap-touch-10inch.dtb \
 	k3-am69-sk-csi2-dual-imx219.dtb \
 	k3-am69-sk-pcie0-ep.dtb \
diff --git a/arch/arm64/boot/dts/ti/k3-am69-aquila-adapter-panel-cap-touch-7inch-dsi.dtso b/arch/arm64/boot/dts/ti/k3-am69-aquila-adapter-panel-cap-touch-7inch-dsi.dtso
new file mode 100644
index 000000000000..36d3746c8bd0
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am69-aquila-adapter-panel-cap-touch-7inch-dsi.dtso
@@ -0,0 +1,155 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (c) Toradex
+ *
+ * Toradex Capacitive Touch Display 7" on Aquila DSI_1.
+ * Used on Development Board (J44), DSI_1 is exposed via a Samtec LSS-130
+ * connector, and requires the Toradex DSI Display Adapter to convert to
+ * FFC/FPC connector.
+ *
+ * https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-7inch-dsi
+ * https://www.toradex.com/accessories/capacitive-touch-display-7-inch-dsi
+ * https://developer.toradex.com/hardware/accessories/add-ons/dsi-display-adapter
+ * https://www.toradex.com/accessories/verdin-dsi-display-adapter
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+&{/} {
+	backlight_pwm3: backlight-pwm3 {
+		compatible = "pwm-backlight";
+		brightness-levels = <0 45 63 88 119 158 203 255>;
+		default-brightness-level = <4>;
+		/* Aquila PWM_3_DSI (AQUILA B46) */
+		pwms = <&main_ehrpwm5 0 6666667 0>;
+	};
+
+	panel-lvds-bridge {
+		compatible = "riverdi,rvt70hslnwca0", "panel-lvds";
+		backlight = <&backlight_pwm3>;
+		data-mapping = "vesa-24";
+		height-mm = <86>;
+		width-mm = <154>;
+
+		panel-timing {
+			clock-frequency = <51200000>;
+			de-active = <1>;
+			hactive = <1024>;
+			hback-porch = <100 100 100>;
+			hfront-porch = <16 160 216>;
+			hsync-active = <0>;
+			hsync-len = <1 60 140>;
+			pixelclk-active = <1>;
+			vactive = <600>;
+			vback-porch = <13 13 13>;
+			vfront-porch = <1 12 127>;
+			vsync-active = <0>;
+			vsync-len = <1 10 20>;
+		};
+
+		port {
+			panel_lvds_bridge_in: endpoint {
+				remote-endpoint = <&dsi_lvds_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_lvds_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>;
+		};
+	};
+};
+
+/* I2C on DSI Connector Pin #52 and #54 */
+&i2c_dsi_1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	bridge@2c {
+		compatible = "ti,sn65dsi83";
+		reg = <0x2c>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_20_dsi_1>;
+		/* Aquila GPIO_20_DSI_1 (AQUILA B45) */
+		enable-gpios = <&main_gpio0 18 GPIO_ACTIVE_HIGH>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				dsi_lvds_bridge_in: endpoint {
+					remote-endpoint = <&dsi0_out>;
+					data-lanes = <1 2 3 4>;
+				};
+			};
+
+			port@2 {
+				reg = <2>;
+
+				dsi_lvds_bridge_out: endpoint {
+					remote-endpoint = <&panel_lvds_bridge_in>;
+				};
+			};
+		};
+	};
+
+	touchscreen@41 {
+		compatible = "ilitek,ili2132";
+		reg = <0x41>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_17_dsi_1>, <&pinctrl_gpio_18_dsi_1>;
+		/* Aquila GPIO_17_DSI_1 (AQUILA B42) */
+		interrupt-parent = <&main_gpio0>;
+		/*
+		 * Data-ready pulse is ~200 us; either edge can be used,
+		 * use the rising edge because the falling edge is noisy.
+		 */
+		interrupts = <12 IRQ_TYPE_EDGE_RISING>;
+		/* Aquila GPIO_18_DSI_1 (AQUILA B43) */
+		reset-gpios = <&main_gpio0 31 GPIO_ACTIVE_LOW>;
+	};
+};
-- 
2.54.0