Hi Heiko,
On 10/21/25 9:42 AM, Heiko Stuebner wrote:
From: Heiko Stuebner <[email protected]>
The video-demo adapter also works on the Lion SoM when running
on a Haikou baseboard, so add an overlay for it.
Signed-off-by: Heiko Stuebner <[email protected]>
---
arch/arm64/boot/dts/rockchip/Makefile | 5 +
.../rk3368-lion-haikou-video-demo.dtso | 174 ++++++++++++++++++
2 files changed, 179 insertions(+)
create mode 100644
arch/arm64/boot/dts/rockchip/rk3368-lion-haikou-video-demo.dtso
diff --git a/arch/arm64/boot/dts/rockchip/Makefile
b/arch/arm64/boot/dts/rockchip/Makefile
index ad684e3831bc..494fdd685a5c 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -42,6 +42,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-evb-act8846.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-geekbox.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-lba3368.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-lion-haikou.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-lion-haikou-video-demo.dtbo
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-orion-r68-meta.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-px5-evb.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-r88.dtb
@@ -231,6 +232,10 @@ 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) += rk3368-lion-haikou-haikou-video-demo.dtb
+rk3368-lion-haikou-haikou-video-demo-dtbs := rk3368-lion-haikou.dtb \
+ rk3368-lion-haikou-video-demo.dtbo
+
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-puma-haikou-haikou-video-demo.dtb
rk3399-puma-haikou-haikou-video-demo-dtbs := rk3399-puma-haikou.dtb \
rk3399-puma-haikou-video-demo.dtbo
diff --git a/arch/arm64/boot/dts/rockchip/rk3368-lion-haikou-video-demo.dtso
b/arch/arm64/boot/dts/rockchip/rk3368-lion-haikou-video-demo.dtso
new file mode 100644
index 000000000000..e7767c008144
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3368-lion-haikou-video-demo.dtso
@@ -0,0 +1,174 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2025 Cherry Embedded Solutions GmbH
+ *
+ * DEVKIT ADDON CAM-TS-A01
+ * https://embedded.cherry.de/product/development-kit/
+ *
+ * DT-overlay for the camera / DSI demo appliance for Haikou boards.
+ * In the flavour for use with a Puma system-on-module.
s/Puma/Lion/
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/clock/rk3368-cru.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+
+&{/} {
+ backlight: backlight {
+ compatible = "pwm-backlight";
+ power-supply = <&dc_12v>;
+ pwms = <&pwm1 0 25000 0>;
+ };
+
+ cam_afvdd_2v8: regulator-cam-afvdd-2v8 {
+ compatible = "regulator-fixed";
+ gpio = <&pca9670 2 GPIO_ACTIVE_LOW>;
+ regulator-max-microvolt = <2800000>;
+ regulator-min-microvolt = <2800000>;
+ regulator-name = "cam-afvdd-2v8";
+ vin-supply = <&vcc2v8_video>;
+ };
+
+ cam_avdd_2v8: regulator-cam-avdd-2v8 {
+ compatible = "regulator-fixed";
+ gpio = <&pca9670 4 GPIO_ACTIVE_LOW>;
+ regulator-max-microvolt = <2800000>;
+ regulator-min-microvolt = <2800000>;
+ regulator-name = "cam-avdd-2v8";
+ vin-supply = <&vcc2v8_video>;
+ };
+
+ cam_dovdd_1v8: regulator-cam-dovdd-1v8 {
+ compatible = "regulator-fixed";
+ gpio = <&pca9670 3 GPIO_ACTIVE_LOW>;
+ regulator-max-microvolt = <1800000>;
+ regulator-min-microvolt = <1800000>;
+ regulator-name = "cam-dovdd-1v8";
+ vin-supply = <&vcc1v8_video>;
+ };
+
+ cam_dvdd_1v2: regulator-cam-dvdd-1v2 {
+ compatible = "regulator-fixed";
+ enable-active-high;
+ gpio = <&pca9670 5 GPIO_ACTIVE_HIGH>;
+ regulator-max-microvolt = <1200000>;
+ regulator-min-microvolt = <1200000>;
+ regulator-name = "cam-dvdd-1v2";
+ vin-supply = <&vcc3v3_baseboard>;
+ };
+
+ vcc1v8_video: regulator-vcc1v8-video {
+ compatible = "regulator-fixed";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-max-microvolt = <1800000>;
+ regulator-min-microvolt = <1800000>;
+ regulator-name = "vcc1v8-video";
+ vin-supply = <&vcc3v3_baseboard>;
+ };
+
+ vcc2v8_video: regulator-vcc2v8-video {
+ compatible = "regulator-fixed";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-max-microvolt = <2800000>;
+ regulator-min-microvolt = <2800000>;
+ regulator-name = "vcc2v8-video";
+ vin-supply = <&vcc3v3_baseboard>;
+ };
+
+ video-adapter-leds {
+ compatible = "gpio-leds";
+
+ video-adapter-led {
+ color = <LED_COLOR_ID_BLUE>;
+ gpios = <&pca9670 7 GPIO_ACTIVE_HIGH>;
+ label = "video-adapter-led";
+ linux,default-trigger = "none";
+ };
+ };
+};
+
+&dphy {
+ status = "okay";
+};
+
+&i2c_gp2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ /* OV5675, GT911, DW9714 are limited to 400KHz */
+ clock-frequency = <400000>;
+
+ touchscreen@14 {
+ compatible = "goodix,gt911";
+ reg = <0x14>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <RK_PB5 IRQ_TYPE_LEVEL_LOW>;
+ irq-gpios = <&gpio1 RK_PB5 GPIO_ACTIVE_HIGH>;
+ pinctrl-0 = <&touch_int>;
+ pinctrl-names = "default";
+ reset-gpios = <&pca9670 1 GPIO_ACTIVE_HIGH>;
+ AVDD28-supply = <&vcc2v8_video>;
+ VDDIO-supply = <&vcc3v3_baseboard>;
+ };
+
+ pca9670: gpio@27 {
+ compatible = "nxp,pca9670";
+ reg = <0x27>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ pinctrl-0 = <&pca9670_resetn>;
+ pinctrl-names = "default";
+ reset-gpios = <&gpio1 RK_PA5 GPIO_ACTIVE_LOW>;
+ };
+};
+
+&mipi_dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ panel@0 {
+ compatible = "leadtek,ltk050h3148w";
+ reg = <0>;
+ backlight = <&backlight>;
+ iovcc-supply = <&vcc1v8_video>;
+ reset-gpios = <&pca9670 0 GPIO_ACTIVE_LOW>;
+ vci-supply = <&vcc2v8_video>;
+
+ port {
+ mipi_in_panel: endpoint {
+ remote-endpoint = <&mipi_out_panel>;
+ };
+ };
+ };
+};
+
+&mipi_out {
+ mipi_out_panel: endpoint {
+ remote-endpoint = <&mipi_in_panel>;
+ };
+};
+
+&pinctrl {
+ pca9670 {
+ pca9670_resetn: pca9670-resetn {
+ rockchip,pins = <1 RK_PA5 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ touch {
+ touch_int: touch-int {
+ rockchip,pins = <1 RK_PB5 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+};
+
+&pwm1 {
+ status = "okay";
+};
Both Puma and Ringneck enable the PWM controller in Haikou as it is
exposed as BLT_CTRL signal on the MISC I/O pin header. The Qseven
standard specifies this signal is only for PWM (either for a panel
backlight or generic PWM), so I believe it's proper to enable it in the
motherboard DTS to also align with the DTSO for the other modules.
I've tested the touchscreen, backlight and LED, they all work as expected.
I have not yet managed to make the DSI display work. It is detected but
modetest test pattern doesn't show, only blank.
Since there's only one VOP, I'm also wondering if we need to disable
HDMI here? Or is Linux capable of handling multiple connected displays
but only use one? I've tried to make DSI work with the HDMI controller
disabled, it didn't change anything.
Cheers,
Quentin
