[PATCH v2 2/2] arm64: dts: qcom: qcs6490-rubikpi3: Add IMX219 camera overlays
From: Hongyang Zhao
Date: Wed Jul 22 2026 - 13:03:19 EST
RUBIK Pi 3 ships without camera sensors, and its two connectors support
multiple modules. Keep module-specific nodes out of the base board DTS
and add per-connector overlays for Raspberry Pi Camera Module V2 IMX219
sensors.
CAM1 uses CCI1 and CSIPHY1, while CAM2 uses CCI0 and CSIPHY4. Each
overlay describes the 24 MHz sensor input clock and the three sensor
rails derived from the switched 3.3 V connector supply.
Describe each connector CAMERA_GPIO signal as a privacy indicator LED
and associate it with the corresponding sensor. This lets the V4L2 core
control the LED while the sensor is streaming.
Signed-off-by: Hongyang Zhao <hongyang.zhao@xxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/Makefile | 15 +++
.../qcs6490-thundercomm-rubikpi3-cam1-imx219.dtso | 117 +++++++++++++++++++++
.../qcs6490-thundercomm-rubikpi3-cam2-imx219.dtso | 117 +++++++++++++++++++++
3 files changed, 249 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index e05414290d8e..89c1d12ed299 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -185,6 +185,21 @@ dtb-$(CONFIG_ARCH_QCOM) += qcs6490-rb3gen2-industrial-mezzanine.dtb
dtb-$(CONFIG_ARCH_QCOM) += qcs6490-rb3gen2-vision-mezzanine.dtb
dtb-$(CONFIG_ARCH_QCOM) += qcs6490-thundercomm-minipc-g1iot.dtb
dtb-$(CONFIG_ARCH_QCOM) += qcs6490-thundercomm-rubikpi3.dtb
+
+qcs6490-thundercomm-rubikpi3-cam1-imx219-dtbs := \
+ qcs6490-thundercomm-rubikpi3.dtb \
+ qcs6490-thundercomm-rubikpi3-cam1-imx219.dtbo
+qcs6490-thundercomm-rubikpi3-cam2-imx219-dtbs := \
+ qcs6490-thundercomm-rubikpi3.dtb \
+ qcs6490-thundercomm-rubikpi3-cam2-imx219.dtbo
+qcs6490-thundercomm-rubikpi3-dual-imx219-dtbs := \
+ qcs6490-thundercomm-rubikpi3.dtb \
+ qcs6490-thundercomm-rubikpi3-cam1-imx219.dtbo \
+ qcs6490-thundercomm-rubikpi3-cam2-imx219.dtbo
+
+dtb-$(CONFIG_ARCH_QCOM) += qcs6490-thundercomm-rubikpi3-cam1-imx219.dtb
+dtb-$(CONFIG_ARCH_QCOM) += qcs6490-thundercomm-rubikpi3-cam2-imx219.dtb
+dtb-$(CONFIG_ARCH_QCOM) += qcs6490-thundercomm-rubikpi3-dual-imx219.dtb
dtb-$(CONFIG_ARCH_QCOM) += qcs6490-vicharak-axon-mini.dtb
dtb-$(CONFIG_ARCH_QCOM) += qcs8300-ride.dtb
diff --git a/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3-cam1-imx219.dtso b/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3-cam1-imx219.dtso
new file mode 100644
index 000000000000..620b4b3463b4
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3-cam1-imx219.dtso
@@ -0,0 +1,117 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2026, Thundercomm All rights reserved.
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+
+&{/} {
+ cam1_imx219_clk: clock-camera1-24m {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <24000000>;
+ };
+
+ leds-camera1 {
+ compatible = "gpio-leds";
+
+ pinctrl-0 = <&cam1_privacy_led_state>;
+ pinctrl-names = "default";
+
+ cam1_privacy_led: led-camera1 {
+ function = LED_FUNCTION_INDICATOR;
+ function-enumerator = <1>;
+ gpios = <&tlmm 18 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+ };
+
+ /* The module enables its three sensor rails together through PWR_EN. */
+ vreg_cam1_pwr: regulator-camera1-pwr {
+ compatible = "regulator-fixed";
+
+ regulator-name = "vreg_camera1_pwr";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpio = <&tlmm 57 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+
+ pinctrl-0 = <&cam1_pwr_en>;
+ pinctrl-names = "default";
+
+ vin-supply = <&vreg_vcc3v3_output>;
+ };
+};
+
+&camss {
+ vdda-phy-supply = <&vreg_l10c_0p88>;
+ vdda-pll-supply = <&vreg_l6b_1p2>;
+
+ status = "okay";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@1 {
+ reg = <1>;
+
+ csiphy1_ep: endpoint {
+ data-lanes = <0 1>;
+ remote-endpoint = <&cam1_imx219_ep>;
+ };
+ };
+ };
+};
+
+&cci1 {
+ status = "okay";
+};
+
+&cci1_i2c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ camera@10 {
+ compatible = "sony,imx219";
+ reg = <0x10>;
+
+ clocks = <&cam1_imx219_clk>;
+
+ VANA-supply = <&vreg_cam1_pwr>;
+ VDIG-supply = <&vreg_cam1_pwr>;
+ VDDL-supply = <&vreg_cam1_pwr>;
+
+ leds = <&cam1_privacy_led>;
+ led-names = "privacy";
+
+ port {
+ cam1_imx219_ep: endpoint {
+ data-lanes = <1 2>;
+ link-frequencies = /bits/ 64 <456000000>;
+ remote-endpoint = <&csiphy1_ep>;
+ };
+ };
+ };
+};
+
+&tlmm {
+ cam1_privacy_led_state: cam1-privacy-led-state {
+ pins = "gpio18";
+ function = "gpio";
+ drive-strength = <8>;
+ bias-disable;
+ };
+
+ cam1_pwr_en: cam1-pwr-en-state {
+ pins = "gpio57";
+ function = "gpio";
+ drive-strength = <8>;
+ bias-disable;
+ };
+};
diff --git a/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3-cam2-imx219.dtso b/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3-cam2-imx219.dtso
new file mode 100644
index 000000000000..80479fffcdcb
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3-cam2-imx219.dtso
@@ -0,0 +1,117 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2026, Thundercomm All rights reserved.
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+
+&{/} {
+ cam2_imx219_clk: clock-camera2-24m {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <24000000>;
+ };
+
+ leds-camera2 {
+ compatible = "gpio-leds";
+
+ pinctrl-0 = <&cam2_privacy_led_state>;
+ pinctrl-names = "default";
+
+ cam2_privacy_led: led-camera2 {
+ function = LED_FUNCTION_INDICATOR;
+ function-enumerator = <2>;
+ gpios = <&tlmm 19 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+ };
+
+ /* The module enables its three sensor rails together through PWR_EN. */
+ vreg_cam2_pwr: regulator-camera2-pwr {
+ compatible = "regulator-fixed";
+
+ regulator-name = "vreg_camera2_pwr";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpio = <&tlmm 58 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+
+ pinctrl-0 = <&cam2_pwr_en>;
+ pinctrl-names = "default";
+
+ vin-supply = <&vreg_vcc3v3_output>;
+ };
+};
+
+&camss {
+ vdda-phy-supply = <&vreg_l10c_0p88>;
+ vdda-pll-supply = <&vreg_l6b_1p2>;
+
+ status = "okay";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@4 {
+ reg = <4>;
+
+ csiphy4_ep: endpoint {
+ data-lanes = <0 1>;
+ remote-endpoint = <&cam2_imx219_ep>;
+ };
+ };
+ };
+};
+
+&cci0 {
+ status = "okay";
+};
+
+&cci0_i2c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ camera@10 {
+ compatible = "sony,imx219";
+ reg = <0x10>;
+
+ clocks = <&cam2_imx219_clk>;
+
+ VANA-supply = <&vreg_cam2_pwr>;
+ VDIG-supply = <&vreg_cam2_pwr>;
+ VDDL-supply = <&vreg_cam2_pwr>;
+
+ leds = <&cam2_privacy_led>;
+ led-names = "privacy";
+
+ port {
+ cam2_imx219_ep: endpoint {
+ data-lanes = <1 2>;
+ link-frequencies = /bits/ 64 <456000000>;
+ remote-endpoint = <&csiphy4_ep>;
+ };
+ };
+ };
+};
+
+&tlmm {
+ cam2_privacy_led_state: cam2-privacy-led-state {
+ pins = "gpio19";
+ function = "gpio";
+ drive-strength = <8>;
+ bias-disable;
+ };
+
+ cam2_pwr_en: cam2-pwr-en-state {
+ pins = "gpio58";
+ function = "gpio";
+ drive-strength = <8>;
+ bias-disable;
+ };
+};
--
2.43.0