linux-kernel - Re: [PATCH v2 4/4] arm64: dts: qcom: talos-evk-camera: Add DT overlay

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Message-ID: <ac431daa-a9d1-4415-929b-87c1b9a08f0d@oss.qualcomm.com>
Date: Wed, 7 Jan 2026 11:06:48 +0800
From: Wenmeng Liu <wenmeng.liu@....qualcomm.com>
To: Rob Herring <robh@...nel.org>
Cc: Loic Poulain <loic.poulain@....qualcomm.com>,
        Robert Foss <rfoss@...nel.org>, Andi Shyti <andi.shyti@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Todor Tomov <todor.too@...il.com>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>,
        linux-i2c@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org
Subject: Re: [PATCH v2 4/4] arm64: dts: qcom: talos-evk-camera: Add DT overlay



On 1/7/2026 3:26 AM, Rob Herring wrote:
> On Tue, Jan 06, 2026 at 05:39:56PM +0800, Wenmeng Liu wrote:
>> Enable IMX577 via CCI on Taloss EVK Core Kit.
>>
>> The Talos EVK board does not include a camera sensor
>> by default, this overlay reflects the possibility of
>> attaching an optional camera sensor.
>> For this reason, the camera sensor configuration is
>> placed in talos-evk-camera.dtso, rather than
>> modifying the base talos-evk.dts.
>>
>> Signed-off-by: Wenmeng Liu <wenmeng.liu@....qualcomm.com>
>> ---
>>   arch/arm64/boot/dts/qcom/Makefile              |  2 +
>>   arch/arm64/boot/dts/qcom/talos-evk-camera.dtso | 63 ++++++++++++++++++++++++++
>>   2 files changed, 65 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
>> index 4258776b71bdba351de8cefa33eb29a0fe3ec6f3..bfaa0b47ab5cabc9aa1c6fba29faa3e6fd18f913 100644
>> --- a/arch/arm64/boot/dts/qcom/Makefile
>> +++ b/arch/arm64/boot/dts/qcom/Makefile
>> @@ -333,8 +333,10 @@ dtb-$(CONFIG_ARCH_QCOM)	+= sm8650-qrd.dtb
>>   dtb-$(CONFIG_ARCH_QCOM)	+= sm8750-mtp.dtb
>>   dtb-$(CONFIG_ARCH_QCOM)	+= sm8750-qrd.dtb
>>   dtb-$(CONFIG_ARCH_QCOM)	+= talos-evk.dtb
>> +talos-evk-camera-dtbs	:= talos-evk.dtb talos-evk-camera.dtbo
> 
> You need to add talos-evk-camera.dtbo to dtb-y if you want it preserved
> and able to be installed (via dtbs_install). If you don't want that,
> then why is it a .dtbo?
> 
> Looks like other .dtbo's might have the same issue.

Will fix it in next version.

Thanks,
Wenmeng>
>>   talos-evk-lvds-auo,g133han01-dtbs	:= \
>>   	talos-evk.dtb talos-evk-lvds-auo,g133han01.dtbo
>> +dtb-$(CONFIG_ARCH_QCOM)	+= talos-evk-camera.dtb
>>   dtb-$(CONFIG_ARCH_QCOM)	+= talos-evk-lvds-auo,g133han01.dtb
>>   x1e001de-devkit-el2-dtbs	:= x1e001de-devkit.dtb x1-el2.dtbo
>>   dtb-$(CONFIG_ARCH_QCOM)	+= x1e001de-devkit.dtb x1e001de-devkit-el2.dtb