linux-kernel - Re: [PATCH 4/4] arm64: dts: qcom: qcm6490-fairphone-fp5: Add UW cam actuator

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Message-ID: <dfc093a1-e13b-4342-9015-5a896bf18d5a@oss.qualcomm.com>
Date: Mon, 6 Oct 2025 11:20:14 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Griffin Kroah-Hartman <griffin.kroah@...rphone.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>, devicetree@...r.kernel.org,
        Daniel Scally <djrscally@...il.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        André Apitzsch
 <git@...tzsch.eu>
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH 4/4] arm64: dts: qcom: qcm6490-fairphone-fp5: Add UW cam
 actuator

On 10/2/25 12:15 PM, Griffin Kroah-Hartman wrote:
> Add a node for the Dongwoon DW9800K actuator, used for focus of the
> ultra-wide camera sensor.
> 
> Signed-off-by: Griffin Kroah-Hartman <griffin.kroah@...rphone.com>
> ---
>  arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts b/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
> index 2dd2c452592aa6b0ac826f19eb9cb1a8b90cee47..0e86cd5ff527925c7dba15c4e0ee5fc409fe4ce6 100644
> --- a/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
> +++ b/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
> @@ -627,6 +627,15 @@ eeprom@50 {
>  };
>  
>  &cci0_i2c1 {
> +	camera_imx858_dw9800k: actuator@e {
> +		compatible = "dongwoon,dw9800k";
> +		reg = <0x0e>;
> +		vdd-supply = <&vreg_afvdd_2p8>;
> +
> +		dongwoon,sac-mode = <1>;

This property exists, but isn't documented (you need to extend the bindings)

> +		dongwoon,vcm-prescale = <16>;

This property is neither documented, nor consumed by the driver (it may
or may not matter to you, check against what your presumably-BSP driver
does with it)

Konrad