Re: [PATCH v2 1/2] arm64: dts: qcom: qcs6490-rubikpi3: Add 3.3 V output supply

Konrad Dybcio <[email protected]> Tue, 28 Jul 2026 14:06:07 +0200

Newsgroups	dev.linux.lists.imx,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel
Message-ID	<[email protected]>

On 7/22/26 6:12 PM, Hongyang Zhao wrote:
> Describe the GPIO-controlled VCC3V3_OUTPUT rail. This board-level rail
> supplies the two camera connectors and the 40-pin expansion header.
> 
> Signed-off-by: Hongyang Zhao <[email protected]>
> ---
>  .../boot/dts/qcom/qcs6490-thundercomm-rubikpi3.dts | 24 ++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3.dts b/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3.dts
> index d8a9a7e47bdc..45514918562b 100644
> --- a/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3.dts
> +++ b/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3.dts
> @@ -214,6 +214,23 @@ vreg_usbhub_rest_1v8: regulator-usbhub-rest-1v8 {
>  		regulator-boot-on;
>  	};
>  
> +	vreg_vcc3v3_output: regulator-vcc3v3-output {
> +		compatible = "regulator-fixed";
> +
> +		regulator-name = "vcc3v3_output";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +
> +		gpio = <&tlmm 14 GPIO_ACTIVE_HIGH>;
> +		enable-active-high;
> +
> +		pinctrl-0 = <&vcc3v3_output_en>;
> +		pinctrl-names = "default";
> +
> +		regulator-always-on;
> +		regulator-boot-on;

Is it really on by default at boot?

Konrad