linux-kernel - Re: [PATCH v6 4/5] media: qcom: camss: csid: Add support for CSID 1080

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Message-ID: <c2f30fc7-8123-4711-a45e-d02155590d22@oss.qualcomm.com>
Date: Tue, 18 Nov 2025 16:23:42 -0800
From: Vijay Kumar Tumati <vijay.tumati@....qualcomm.com>
To: Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Hangxiang Ma <hangxiang.ma@....qualcomm.com>,
        Loic Poulain <loic.poulain@....qualcomm.com>,
        Robert Foss
 <rfoss@...nel.org>, Andi Shyti <andi.shyti@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, Todor Tomov <todor.too@...il.com>,
        Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        aiqun.yu@....qualcomm.com, tingwei.zhang@....qualcomm.com,
        trilok.soni@....qualcomm.com, yijie.yang@....qualcomm.com,
        Jingyi Wang <jingyi.wang@....qualcomm.com>,
        Atiya Kailany <atiya.kailany@....qualcomm.com>
Subject: Re: [PATCH v6 4/5] media: qcom: camss: csid: Add support for CSID
 1080


On 11/18/2025 1:43 AM, Bryan O'Donoghue wrote:
> On 14/11/2025 03:29, Hangxiang Ma wrote:
>> +            if (buf_done_val & BIT(BUF_DONE_IRQ_STATUS_RDI_OFFSET + 
>> i)) {
>> +                /*
>> +                 * buf done and RUP IRQ have been moved to CSID from 
>> VFE.
>> +                 * Once CSID received buf done, need notify VFE of this
>> +                 * event and trigger VFE to handle buf done process.
>> +                 */
>> +                camss_buf_done(csid->camss, csid->id, i);
>> +            }
>
> Somebody needs to have a conversation with the Si design people to 
> tell them to stop moving this functionality around... its completely 
> demented.
>
> ---
> bod
>
If this is different between any of the recent chip sets (which I am not 
aware of), we can discuss with the HW team and standardize. I will take 
an AI on this. Other than that, I believe there is no code change 
required here. Thanks.