[PATCH v1 03/15] arm64: dts: ti: k3-am62-verdin: Add Toradex Capacitive Touch Display 10.1" LVDS
Vitor Soares
ivitro at gmail.com
Thu May 21 08:00:39 PDT 2026
From: Vitor Soares <vitor.soares at toradex.com>
Add a device tree overlay for the Toradex Capacitive Touch Display 10.1"
LVDS connected via Verdin AM62 OLDI on carrier boards exposing LVDS
interface (e.g., Mallow). The panel is a LogicTechno LT170410-2WHC 10.1"
WXGA IPS LCD and the touch input is provided by an Atmel MaxTouch
capacitive touch controller.
Link: https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-101inch-lvds
Assisted-by: Claude:claude-sonnet-4.6
Signed-off-by: Vitor Soares <vitor.soares at toradex.com>
---
arch/arm64/boot/dts/ti/Makefile | 5 +
...25-verdin-panel-cap-touch-10inch-lvds.dtso | 131 ++++++++++++++++++
2 files changed, 136 insertions(+)
create mode 100644 arch/arm64/boot/dts/ti/k3-am625-verdin-panel-cap-touch-10inch-lvds.dtso
diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index b2408f62c139..867c05b675d1 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -33,6 +33,7 @@ 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-$(CONFIG_ARCH_K3) += k3-am625-verdin-panel-cap-touch-10inch-lvds.dtbo
dtb-$(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
@@ -213,6 +214,9 @@ k3-am625-sk-hdmi-audio-dtbs := k3-am625-sk.dtb k3-am62x-sk-hdmi-audio.dtbo
k3-am625-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch-dtbs := \
k3-am625-verdin-wifi-dev.dtb \
k3-am625-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtbo
+k3-am625-verdin-wifi-mallow-panel-cap-touch-10inch-lvds-dtbs := \
+ k3-am625-verdin-wifi-mallow.dtb \
+ k3-am625-verdin-panel-cap-touch-10inch-lvds.dtbo
k3-am62-lp-sk-hdmi-audio-dtbs := k3-am62-lp-sk.dtb k3-am62x-sk-hdmi-audio.dtbo
k3-am62-lp-sk-nand-dtbs := k3-am62-lp-sk.dtb k3-am62-lp-sk-nand.dtbo
k3-am62a7-phyboard-lyra-disable-eth-phy-dtbs := k3-am62a7-phyboard-lyra-rdk.dtb \
@@ -315,6 +319,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
k3-am625-sk-csi2-tevi-ov5640.dtb \
k3-am625-sk-hdmi-audio.dtb \
k3-am625-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch.dtb \
+ k3-am625-verdin-wifi-mallow-panel-cap-touch-10inch-lvds.dtb \
k3-am62-lp-sk-hdmi-audio.dtb \
k3-am62-lp-sk-nand.dtb \
k3-am62a7-phyboard-lyra-disable-eth-phy.dtb \
diff --git a/arch/arm64/boot/dts/ti/k3-am625-verdin-panel-cap-touch-10inch-lvds.dtso b/arch/arm64/boot/dts/ti/k3-am625-verdin-panel-cap-touch-10inch-lvds.dtso
new file mode 100644
index 000000000000..893dde0e2e2b
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am625-verdin-panel-cap-touch-10inch-lvds.dtso
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (c) Toradex
+ *
+ * Toradex Capacitive Touch Display 10.1" connected via Verdin AM62 OLDI
+ * on carrier boards with a Toradex standard LVDS display connector
+ * (e.g., Mallow).
+ *
+ * https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-101inch-lvds
+ * https://www.toradex.com/accessories/capacitive-touch-display-10.1-inch-lvds
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/pwm/pwm.h>
+#include "k3-pinctrl.h"
+
+&{/} {
+ backlight_pwm2: backlight-pwm2 {
+ compatible = "pwm-backlight";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2s_2_d_out_gpio>;
+ brightness-levels = <0 45 63 88 119 158 203 255>;
+ default-brightness-level = <4>;
+ /* Verdin I2S_2_D_OUT as GPIO (SODIMM 46) */
+ enable-gpios = <&main_gpio0 34 GPIO_ACTIVE_HIGH>;
+ /* Verdin PWM_2 (SODIMM 16) */
+ pwms = <&epwm0 1 6666667 PWM_POLARITY_INVERTED>;
+ };
+
+ panel-lvds-native {
+ compatible = "logictechno,lt170410-2whc", "panel-lvds";
+ backlight = <&backlight_pwm2>;
+ data-mapping = "vesa-24";
+ height-mm = <136>;
+ width-mm = <217>;
+
+ panel-timing {
+ clock-frequency = <71100000>;
+ de-active = <1>;
+ hactive = <1280>;
+ hback-porch = <3 40 51>;
+ hfront-porch = <43 80 91>;
+ hsync-active = <0>;
+ hsync-len = <15 40 47>;
+ pixelclk-active = <1>; /* positive edge */
+ vactive = <800>;
+ vback-porch = <5 7 10>;
+ vfront-porch = <5 7 10>;
+ vsync-active = <0>;
+ vsync-len = <6 9 12>;
+ };
+
+ port {
+ panel_lvds_native_in: endpoint {
+ remote-endpoint = <&oldi0_out>;
+ };
+ };
+ };
+};
+
+&dss {
+ status = "okay";
+};
+
+&dss_ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* DSS VP1: internal DPI output to OLDIx */
+ port at 0 {
+ reg = <0>;
+
+ dss0_out: endpoint {
+ remote-endpoint = <&oldi0_in>;
+ };
+ };
+};
+
+/* Verdin I2C_2_DSI */
+&main_i2c2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ touch at 4a {
+ compatible = "atmel,maxtouch";
+ reg = <0x4a>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2s_2_d_in_gpio>, <&pinctrl_i2s_2_sync_gpio>;
+ /* Verdin I2S_2_SYNC as GPIO (SODIMM 44) */
+ interrupt-parent = <&main_gpio0>;
+ interrupts = <37 IRQ_TYPE_EDGE_FALLING>;
+ /* Verdin I2S_2_D_IN as GPIO (SODIMM 48) */
+ reset-gpios = <&main_gpio0 33 GPIO_ACTIVE_LOW>;
+ };
+};
+
+&main_pmx0 {
+ /* Mallow Touch RST */
+ pinctrl_i2s_2_d_in_gpio: main-gpio0-33-default-pins {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x0088, PIN_INPUT, 7) /* (L24) GPMC0_OEn_REn.GPIO0_33 */ /* SODIMM 48 */
+ >;
+ };
+
+ /* Mallow Touch INT#*/
+ pinctrl_i2s_2_sync_gpio: main-gpio0-37-default-pins {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x0098, PIN_INPUT, 7) /* (U23) GPMC0_WAIT0.GPIO0_37 */ /* SODIMM 44 */
+ >;
+ };
+};
+
+&oldi0 {
+ status = "okay";
+};
+
+&oldi0_port0 {
+ oldi0_in: endpoint {
+ remote-endpoint = <&dss0_out>;
+ };
+};
+
+&oldi0_port1 {
+ oldi0_out: endpoint {
+ remote-endpoint = <&panel_lvds_native_in>;
+ };
+};
--
2.54.0
More information about the linux-arm-kernel
mailing list