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authorRobin Murphy <robin.murphy@arm.com>2026-01-23 22:22:23 +0300
committerHeiko Stuebner <heiko@sntech.de>2026-02-23 01:28:50 +0300
commit25afddad23b8e91fcff625756e51a805e288ab38 (patch)
tree8ea020f32d299962a2bd27507786be71739c8910
parent638fa970ac669e5d0fb2c5cc0bea3d4443299ac6 (diff)
downloadlinux-25afddad23b8e91fcff625756e51a805e288ab38.tar.xz
arm64: dts: rockchip: Add overlay for FriendlyElec HD702E
Add an overlay to support FriendlyElec's HD702E 7" eDP LCD touchscreen module for the NanoPC-T4 board: https://www.friendlyelec.com/index.php?route=product/product&path=81&product_id=230 Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://patch.msgid.link/2bbc2e62ae9b54ac7594355001ce2b15885d3493.1769191673.git.robin.murphy@arm.com [changed edp-panel auxbus node to panel to conform to the binding] Signed-off-by: Heiko Stuebner <heiko@sntech.de>
-rw-r--r--arch/arm64/boot/dts/rockchip/Makefile5
-rw-r--r--arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4-hd702e.dtso96
2 files changed, 101 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index 89c168a651b6..a9fc5135f1b8 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -63,6 +63,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-khadas-edge-v.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-kobol-helios64.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-leez-p710.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-nanopc-t4.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-nanopc-t4-hd702e.dtbo
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-nanopi-m4.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-nanopi-m4b.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-nanopi-neo4.dtb
@@ -249,6 +250,10 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += px30-ringneck-haikou-haikou-video-demo.dtb
px30-ringneck-haikou-haikou-video-demo-dtbs := px30-ringneck-haikou.dtb \
px30-ringneck-haikou-video-demo.dtbo
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-nanopc-t4-hd702e.dtb
+rk3399-nanopc-t4-hd702e-dtbs := rk3399-nanopc-t4.dtb \
+ rk3399-nanopc-t4-hd702e.dtbo
+
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-lion-haikou-haikou-video-demo.dtb
rk3368-lion-haikou-haikou-video-demo-dtbs := rk3368-lion-haikou.dtb \
rk3368-lion-haikou-video-demo.dtbo
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4-hd702e.dtso b/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4-hd702e.dtso
new file mode 100644
index 000000000000..766925b63571
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4-hd702e.dtso
@@ -0,0 +1,96 @@
+// 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>;
+ };
+ };
+};