[PATCH v2 6/7] arm64: dts: ti: k3-am69-aquila: Add Toradex Capacitive Touch Display 7" DSI
Vitor Soares
ivitro at gmail.com
Tue Jun 2 04:51:29 PDT 2026
From: Vitor Soares <vitor.soares at toradex.com>
Add a device tree overlay for the Toradex Capacitive Touch Display 7"
DSI on the Aquila DSI_1 interface. Used on the Clover Board (J12), where
DSI_1 is exposed via a 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
Signed-off-by: Vitor Soares <vitor.soares at toradex.com>
---
Changes in v2:
- Enable main_ehrpwm5 for Clover board.
arch/arm64/boot/dts/ti/Makefile | 5 +
...am69-aquila-panel-cap-touch-7inch-dsi.dtso | 158 ++++++++++++++++++
2 files changed, 163 insertions(+)
create mode 100644 arch/arm64/boot/dts/ti/k3-am69-aquila-panel-cap-touch-7inch-dsi.dtso
diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index bf50b7a72973..a8c2fae6a212 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -204,6 +204,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-dev-dsi-to-hdmi.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-dsi-to-hdmi.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-dsi-to-lvds-panel-cap-touch-10inch.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-panel-cap-touch-10inch-dsi.dtbo
+dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-panel-cap-touch-7inch-dsi.dtbo
dtb-$(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
@@ -318,6 +319,9 @@ k3-am68-sk-base-board-csi2-dual-imx219-dtbs := k3-am68-sk-base-board.dtb \
k3-j721e-sk-csi2-dual-imx219.dtbo
k3-am68-sk-base-board-pcie1-ep-dtbs := k3-am68-sk-base-board.dtb \
k3-am68-sk-base-board-pcie1-ep.dtbo
+k3-am69-aquila-clover-panel-cap-touch-7inch-dsi-dtbs := \
+ k3-am69-aquila-clover.dtb \
+ k3-am69-aquila-panel-cap-touch-7inch-dsi.dtbo
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
@@ -410,6 +414,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
k3-am68-phyboard-izar-peb-av-15.dtb \
k3-am68-sk-base-board-csi2-dual-imx219.dtb \
k3-am68-sk-base-board-pcie1-ep.dtb \
+ k3-am69-aquila-clover-panel-cap-touch-7inch-dsi.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 \
diff --git a/arch/arm64/boot/dts/ti/k3-am69-aquila-panel-cap-touch-7inch-dsi.dtso b/arch/arm64/boot/dts/ti/k3-am69-aquila-panel-cap-touch-7inch-dsi.dtso
new file mode 100644
index 000000000000..ce8490837c76
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am69-aquila-panel-cap-touch-7inch-dsi.dtso
@@ -0,0 +1,158 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (c) Toradex
+ *
+ * Toradex Capacitive Touch Display 7" on Aquila DSI_1.
+ * Used on Clover Board (J12), DSI_1 is exposed via a 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
+ */
+
+/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 at 0 {
+ reg = <0>;
+
+ dsi0_out: endpoint {
+ remote-endpoint = <&dsi_lvds_bridge_in>;
+ };
+ };
+
+ port at 1 {
+ reg = <1>;
+
+ dsi0_in: endpoint {
+ remote-endpoint = <&dpi2_out>;
+ };
+ };
+};
+
+&dss_ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port at 2 {
+ reg = <2>;
+
+ dpi2_out: endpoint {
+ remote-endpoint = <&dsi0_in>;
+ };
+ };
+};
+
+/* Aquila PWM_3_DSI */
+&main_ehrpwm5 {
+ status = "okay";
+};
+
+/* Aquila I2C_3_DSI1 */
+&main_i2c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ status = "okay";
+
+ bridge at 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 at 0 {
+ reg = <0>;
+
+ dsi_lvds_bridge_in: endpoint {
+ remote-endpoint = <&dsi0_out>;
+ data-lanes = <1 2 3 4>;
+ };
+ };
+
+ port at 2 {
+ reg = <2>;
+
+ dsi_lvds_bridge_out: endpoint {
+ remote-endpoint = <&panel_lvds_bridge_in>;
+ };
+ };
+ };
+ };
+
+ touchscreen at 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
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