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linux-kernel/linux-7.2.3/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4-hd702e.dtso
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2026-09-06 12:53:21 -06:00

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// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* FriendlyElec HD702E LCD on NanoPC-T4 board
*/
/dts-v1/;
/plugin/;
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/pinctrl/rockchip.h>
&{/} {
vdd_3_3v: regulator-vdd_3_3v {
compatible = "regulator-fixed";
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vdd_3.3v";
vin-supply = <&vcc12v0_sys>;
};
backlight: backlight {
compatible = "pwm-backlight";
pwms = <&pwm0 0 25000 0>;
enable-gpios = <&gpio4 RK_PD5 GPIO_ACTIVE_HIGH>;
brightness-levels = <0 255>;
default-brightness-level = <200>;
num-interpolated-steps = <255>;
pinctrl-0 = <&bl_en>;
pinctrl-names = "default";
};
};
&edp {
force-hpd;
status = "okay";
aux-bus {
panel {
compatible = "friendlyarm,hd702e";
backlight = <&backlight>;
no-hpd;
power-supply = <&vdd_3_3v>;
port {
panel_in_edp: endpoint {
remote-endpoint = <&edp_out_panel>;
};
};
};
};
};
&edp_out {
edp_out_panel: endpoint {
remote-endpoint = <&panel_in_edp>;
};
};
&i2c4 {
#address-cells = <1>;
#size-cells = <0>;
touchscreen@5d {
compatible = "goodix,gt9271";
reg = <0x5d>;
interrupt-parent = <&gpio1>;
interrupts = <RK_PC4 IRQ_TYPE_EDGE_FALLING>;
irq-gpios = <&gpio1 RK_PC4 GPIO_ACTIVE_HIGH>;
reset-gpios = <&gpio1 RK_PB5 GPIO_ACTIVE_HIGH>;
pinctrl-0 = <&touch_int &touch_rst>;
pinctrl-names = "default";
AVDD28-supply = <&vdd_3_3v>;
VDDIO-supply = <&vdd_3_3v>;
};
};
&pinctrl {
backlight {
bl_en: bl-en {
rockchip,pins = <4 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
touchscreen {
touch_int: touch-int {
rockchip,pins = <1 RK_PC4 RK_FUNC_GPIO &pcfg_pull_none>;
};
touch_rst: touch-rst {
rockchip,pins = <1 RK_PB5 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
};