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arm64: dts: freescale: imx8mm-verdin: Add Toradex Capacitive Touch Display 7" DSI

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Add a device tree overlay for the Toradex Capacitive Touch Display 7"
on the Verdin DSI_1 interface. The display features an internal Texas
Instruments SN65DSI83 DSI-to-LVDS bridge driving a Riverdi
RVT70HSLNWCA0 7" WSVGA IPS TFT LCD panel. The 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: Ernest Van Hoecke <ernest.vanhoecke@toradex.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
This commit is contained in:
Ernest Van Hoecke 2026-07-24 18:24:31 +02:00 committed by Frank Li
parent 16790c0bdb
commit 4bf5b8862f
2 changed files with 133 additions and 0 deletions
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4
arch/arm64/boot/dts/freescale/Makefile
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@ -191,12 +191,14 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-nonwifi-yavia-dsi-to-hdmi.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-nonwifi-yavia.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-nonwifi-zinnia.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-panel-cap-touch-10inch-dsi.dtbo
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-panel-cap-touch-7inch-dsi.dtbo
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dahlia-dsi-to-hdmi.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dahlia-panel-cap-touch-10inch-dsi.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dahlia.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dev-dsi-to-hdmi.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dev-nau8822-btl.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dev-panel-cap-touch-7inch-dsi.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dev.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-ivy.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-mallow.dtb
@ -216,6 +218,8 @@ imx8mm-verdin-wifi-dev-dsi-to-hdmi-dtbs := imx8mm-verdin-wifi-dev.dtb imx8mm-ver
imx8mm-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch-dtbs := imx8mm-verdin-wifi-dev.dtb \
imx8mm-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtbo
imx8mm-verdin-wifi-dev-nau8822-btl-dtbs := imx8mm-verdin-wifi-dev.dtb imx8mm-verdin-dev-nau8822-btl.dtbo
imx8mm-verdin-wifi-dev-panel-cap-touch-7inch-dsi-dtbs := imx8mm-verdin-wifi-dev.dtb \
imx8mm-verdin-panel-cap-touch-7inch-dsi.dtbo
imx8mm-verdin-wifi-yavia-dsi-to-hdmi-dtbs := imx8mm-verdin-wifi-yavia.dtb imx8mm-verdin-dsi-to-hdmi.dtbo
imx8mm-tqma8mqml-mba8mx-lvds-g133han01-dtbs += imx8mm-tqma8mqml-mba8mx.dtb imx8mm-tqma8mqml-mba8mx-lvds-g133han01.dtbo

129
arch/arm64/boot/dts/freescale/imx8mm-verdin-panel-cap-touch-7inch-dsi.dtso Normal file
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@ -0,0 +1,129 @@
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/*
* Copyright (c) Toradex
*
* Toradex Capacitive Touch Display 7" on Verdin DSI_1.
* On Dahlia (X17) and Development Board (X48), 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>
#include <dt-bindings/pwm/pwm.h>
&{/} {
backlight_pwm3: backlight-pwm3 {
compatible = "pwm-backlight";
brightness-levels = <0 45 63 88 119 158 203 255>;
default-brightness-level = <4>;
power-supply = <&reg_3p3v>;
/* Verdin PWM_3_DSI (SODIMM 19) */
pwms = <&pwm1 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 = <50 60 140>;
pixelclk-active = <1>;
vactive = <600>;
vback-porch = <23 23 23>;
vfront-porch = <1 12 126>;
vsync-active = <0>;
vsync-len = <1 10 20>;
};
port {
panel_lvds_bridge_in: endpoint {
remote-endpoint = <&dsi_lvds_bridge_out>;
};
};
};
};
/* Verdin I2C_2_DSI */
&i2c2 {
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
bridge@2c {
compatible = "ti,sn65dsi83";
reg = <0x2c>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_gpio_10_dsi>;
/* Verdin GPIO_10_DSI (SODIMM 21) - DSI_1_BKL_EN */
enable-gpios = <&gpio3 3 GPIO_ACTIVE_HIGH>;
vcc-supply = <&reg_1p8v>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
dsi_lvds_bridge_in: endpoint {
data-lanes = <1 2 3 4>;
remote-endpoint = <&mipi_dsi_out>;
};
};
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_9_dsi>, <&pinctrl_i2s_2_bclk_touch_reset>;
/* Verdin GPIO_9_DSI (SODIMM 17) - TOUCH_INT# */
/* Rising edge avoids spurious interrupts from the noisy falling edge. */
interrupt-parent = <&gpio3>;
interrupts = <15 IRQ_TYPE_EDGE_RISING>;
/* Verdin I2S_2_BCLK (SODIMM 42) - TOUCH_RESET# */
reset-gpios = <&gpio3 23 GPIO_ACTIVE_LOW>;
};
};
&lcdif {
status = "okay";
};
&mipi_dsi {
samsung,esc-clock-frequency = <16000000>;
status = "okay";
};
&mipi_dsi_out {
remote-endpoint = <&dsi_lvds_bridge_in>;
};