linux-kernel - Re: [PATCH 2/2] arm64: dts: qcom: qcs615: Enable camss for qcs615-adp-air

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Message-ID: <76052af9-96c2-46d6-85c6-65998c389554@linaro.org>
Date: Wed, 21 May 2025 08:52:43 +0300
From: Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>
To: Wenmeng Liu <quic_wenmliu@...cinc.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>, bryan.odonoghue@...aro.org, todor.too@...il.com,
 rfoss@...nel.org
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-media@...r.kernel.org
Subject: Re: [PATCH 2/2] arm64: dts: qcom: qcs615: Enable camss for
 qcs615-adp-air

Hi Wenmeng.

On 5/21/25 04:32, Wenmeng Liu wrote:
> 
> 
> On 2025/5/20 20:19, Vladimir Zapolskiy wrote:
>> Hello Wenmeng,
>>
>> On 5/20/25 11:56, Wenmeng Liu wrote:
>>> This change enables camera driver for QCS615 ADP AIR board.
>>
>> what is the rationale of enabling CAMSS on the board without giving any
>> description of any sensors connected to the SoC?
>>
> 
> Hi Vladimir,
> 
> We can perform validation through the CSID TPG(Test Pattern Generator),
> so I enabled CAMSS.
> 

Since this is just a test of CAMSS without any sensors/CSIPHY, then

1. camss-csiphy-3ph-1-0.c changes from the series have never been tested
    and added as dead code, it shall be removed from the series,
2. adding voltage regulators to the board dts is void and shall be removed.

Not to substitute but in addition to the above it's still doubtful, if just
a hardware/driver test configuration deserves to be added into the dts.

--
Best wishes,
Vladimir