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arm64: dts: ti: k3-am62-verdin: Add Toradex Capacitive Touch Display 10.1" LVDS

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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@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://patch.msgid.link/20260522161105.277519-15-ivitro@gmail.com
Signed-off-by: Nishanth Menon <nm@ti.com>
This commit is contained in:
Vitor Soares
2026-05-22 17:11:06 +01:00
committed by Nishanth Menon
parent ff4427a465
commit 38d01a245e
2 changed files with 125 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
arch/arm64/boot/dts/ti/Makefile
View File

@@ -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 \

120
arch/arm64/boot/dts/ti/k3-am625-verdin-panel-cap-touch-10inch-lvds.dtso Normal file
View File

@@ -0,0 +1,120 @@
// 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";
backlight = <&backlight_pwm2>;
power-supply = <&reg_3v3_lvds>;
port {
panel_lvds_native_in: endpoint {
remote-endpoint = <&oldi0_out>;
};
};
};
reg_3v3_lvds: regulator-3v3-lvds {
compatible = "regulator-fixed";
regulator-max-microvolt = <3300000>;
regulator-min-microvolt = <3300000>;
regulator-name = "+V3.3_LVDS";
};
};
&dss {
status = "okay";
};
&dss_ports {
#address-cells = <1>;
#size-cells = <0>;
/* DSS VP1: internal DPI output to OLDIx */
port@0 {
reg = <0>;
dss0_out: endpoint {
remote-endpoint = <&oldi0_in>;
};
};
};
/* Verdin I2C_2_DSI */
&main_i2c2 {
#address-cells = <1>;
#size-cells = <0>;
touchscreen@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>;
};
};