[PATCH v3 2/2] arm64: dts: qcom: qcs6490-rubikpi3: Add IMX219 camera overlays
From: Hongyang Zhao <hidden>
Date: 2026-08-12 02:23:44
Also in:
imx, linux-arm-msm, linux-devicetree, lkml
Subsystem:
arm/qualcomm mailing list, arm/qualcomm support, the rest · Maintainers:
Bjorn Andersson, Konrad Dybcio, Linus Torvalds
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 models the module power domain controlled through the connector PWR_EN signal. The baseboard supplies VCC3V3_OUTPUT separately and has no per-camera regulator. 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. Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Signed-off-by: Hongyang Zhao <redacted> --- arch/arm64/boot/dts/qcom/Makefile | 15 +++ .../qcs6490-thundercomm-rubikpi3-cam1-imx219.dtso | 115 +++++++++++++++++++++ .../qcs6490-thundercomm-rubikpi3-cam2-imx219.dtso | 115 +++++++++++++++++++++ 3 files changed, 245 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 1c86e7e98f55..c4afe71436c4 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile@@ -186,6 +186,21 @@ 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..b6d7a8235720
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3-cam1-imx219.dtso@@ -0,0 +1,115 @@ +// 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"; + }; + }; + + /* Camera module power domain controlled through connector PWR_EN. */ + vreg_cam1_pwr: regulator-camera1-pwr { + compatible = "regulator-fixed"; + + regulator-name = "vreg_camera1_pwr"; + + 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..ff1ccf965df8
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3-cam2-imx219.dtso@@ -0,0 +1,115 @@ +// 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"; + }; + }; + + /* Camera module power domain controlled through connector PWR_EN. */ + vreg_cam2_pwr: regulator-camera2-pwr { + compatible = "regulator-fixed"; + + regulator-name = "vreg_camera2_pwr"; + + 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