linux-kernel - Re: [PATCH 3/4] arm64: dts: qcom: sm7225-fairphone-fp4: Add camera fixed regulators

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Message-ID: <932a87de-ab2d-4a60-a188-04cc2c00898c@oss.qualcomm.com>
Date: Tue, 16 Dec 2025 14:51:15 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Luca Weiss <luca.weiss@...rphone.com>,
        Bartosz Golaszewski <brgl@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH 3/4] arm64: dts: qcom: sm7225-fairphone-fp4: Add camera
 fixed regulators

On 12/10/25 2:05 AM, Luca Weiss wrote:
> Add multiple fixed regulators that are found on the phone, which provide
> power to the cameras.
> 
> Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
> ---
>  arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts | 40 +++++++++++++++++++++++
>  1 file changed, 40 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
> index c2f856a56b2b..0cfb24e3941d 100644
> --- a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
> +++ b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
> @@ -246,6 +246,46 @@ active-config0 {
>  			};
>  		};
>  	};
> +
> +	vreg_32m_cam_dvdd_1p05: regulator-32m-cam-dvdd-1p05 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "32M_CAM_DVDD_1P05";
> +		regulator-min-microvolt = <1050000>;
> +		regulator-max-microvolt = <1050000>;
> +		gpio = <&pm6150l_gpios 2 GPIO_ACTIVE_HIGH>;

It'd be useful to also explicitly describe the pinmux/cfg states
of the PMIC pins, since these can be a little surprising at boot

Konrad