linux-kernel - Re: [PATCH RFC 3/3] arm64: dts: qcom: qcm6490-fairphone-fp5: Add cam actuator

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Message-ID: <c1d09672-e8a4-473a-88dd-fc91e81aea52@oss.qualcomm.com>
Date: Wed, 22 Oct 2025 19:29:13 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Griffin Kroah-Hartman <griffin.kroah@...rphone.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Tianshu Qiu <tian.shu.qiu@...el.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Luca Weiss <luca.weiss@...rphone.com>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org
Subject: Re: [PATCH RFC 3/3] arm64: dts: qcom: qcm6490-fairphone-fp5: Add cam
 actuator

On 10/9/25 2:23 PM, Griffin Kroah-Hartman wrote:
> Add a node for Asahi Kasei AK7377 actuator, used for focus of the main
> back camera sensor.
> 
> Signed-off-by: Griffin Kroah-Hartman <griffin.kroah@...rphone.com>
> ---
>  arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts b/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
> index e115b6a52b299ef663ccfb614785f8f89091f39d..49654f0f914fbe18080d2f55bb6877c8ab7baf0e 100644
> --- a/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
> +++ b/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
> @@ -616,6 +616,13 @@ &cci0 {
>  };
>  
>  &cci0_i2c0 {
> +	camera_imx800_ak7377: actuator@c {
> +		compatible = "asahi-kasei,ak7377";
> +		reg = <0x0c>;
> +		vdd-supply = <&vreg_l7p>;
> +		vio-supply = <&vreg_l7p>;

The dt-bindings suggest vdd is 2.8 V and vio is 1.8 V (at least
on AK7375, although this isn't stated explicitly..)

L7P on FP5 is 2.7 V (default) - 3.0 V (which you should probably
tighten to the actual operating value), please double-check this

Konrad