From: Bryan O'Donoghue <bod@kernel.org>
To: Hangxiang Ma <hangxiang.ma@oss.qualcomm.com>,
Loic Poulain <loic.poulain@oss.qualcomm.com>,
Robert Foss <rfoss@kernel.org>,
Andi Shyti <andi.shyti@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Todor Tomov <todor.too@gmail.com>,
Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>,
Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-i2c@vger.kernel.org, linux-arm-msm@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-media@vger.kernel.org, aiqun.yu@oss.qualcomm.com,
tingwei.zhang@oss.qualcomm.com, trilok.soni@oss.qualcomm.com,
yijie.yang@oss.qualcomm.com,
Jingyi Wang <jingyi.wang@oss.qualcomm.com>,
Atiya Kailany <atiya.kailany@oss.qualcomm.com>
Subject: Re: [PATCH v2 6/6] media: qcom: camss: vfe: Add support for VFE 1080
Date: Thu, 16 Oct 2025 11:54:20 +0100 [thread overview]
Message-ID: <f5df1c29-a1cd-4cc7-8ac4-b4aefc4225b0@kernel.org> (raw)
In-Reply-To: <1aa133b9-2a99-47cb-8309-7e49b5dc4f85@oss.qualcomm.com>
On 16/10/2025 11:33, Hangxiang Ma wrote:
>> But why ?
>>
>> ---
>> bod
> That a story. When testing the RDI path on Kaanapali, we found one image
> buffer starved at 19/20 stage. We want to capture 20 images but only 19
> received.
>
> On Kaanapali, the AUP and RUP are split into two separate registers not
> a single one. Maybe this hardware change impacts something. Calling
> ops->reg_update() in vfe_enable_output_v2 function only applies one
> buffer address. The downstream code defers AUP and RUP to CSID
> configuration stage. We mimic that and find it can solve this issue.
>
> ---
> Hangxiang
So this is the type of interesting detail that I'd go looking for in a
commit log, a comment in the code or a footnote in the cover letter.
One or two sentences in the commit log will do.
---
bod
next prev parent reply other threads:[~2025-10-16 10:54 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-15 2:56 [PATCH v2 0/6] media: qcom: camss: Add Kaanapali support Hangxiang Ma
2025-10-15 2:56 ` [PATCH v2 1/6] dt-bindings: i2c: qcom-cci: Document Kaanapali compatible Hangxiang Ma
2025-10-15 19:30 ` Vladimir Zapolskiy
2025-10-16 1:56 ` Hangxiang Ma
2025-10-16 7:54 ` Vladimir Zapolskiy
2025-10-16 7:56 ` Konrad Dybcio
2025-10-20 4:13 ` Hangxiang Ma
2025-10-20 18:38 ` Vijay Kumar Tumati
2025-10-16 10:40 ` Krzysztof Kozlowski
2025-10-15 2:56 ` [PATCH v2 2/6] dt-bindings: media: camss: Add qcom,kaanapali-camss binding Hangxiang Ma
2025-10-15 4:37 ` Rob Herring (Arm)
2025-10-16 5:51 ` Krzysztof Kozlowski
2025-10-15 19:45 ` Vladimir Zapolskiy
2025-10-15 21:43 ` Bryan O'Donoghue
2025-10-15 23:32 ` Vladimir Zapolskiy
2025-10-16 3:46 ` Vijay Kumar Tumati
2025-10-16 8:03 ` Vladimir Zapolskiy
2025-10-16 5:50 ` Krzysztof Kozlowski
2025-10-16 23:53 ` Vijay Kumar Tumati
2025-10-17 0:27 ` Vladimir Zapolskiy
2025-10-23 4:52 ` Vijay Kumar Tumati
2025-10-23 11:13 ` Vladimir Zapolskiy
2025-10-23 18:06 ` Vijay Kumar Tumati
2025-10-24 8:49 ` Bryan O'Donoghue
2025-10-16 5:52 ` Krzysztof Kozlowski
2025-10-15 2:56 ` [PATCH v2 3/6] media: qcom: camss: Add Kaanapali compatible camss driver Hangxiang Ma
2025-10-16 8:55 ` Bryan O'Donoghue
2025-10-20 6:45 ` Hangxiang Ma
2025-10-20 13:38 ` Vijay Kumar Tumati
2025-10-20 18:18 ` Bryan O'Donoghue
2025-10-15 2:56 ` [PATCH v2 4/6] media: qcom: camss: csiphy: Add support for v2.4.0 two-phase CSIPHY Hangxiang Ma
2025-10-16 8:59 ` Bryan O'Donoghue
2025-10-16 23:10 ` Vijay Kumar Tumati
2025-10-17 10:55 ` Bryan O'Donoghue
2025-10-15 2:56 ` [PATCH v2 5/6] media: qcom: camss: csid: Add support for CSID 1080 Hangxiang Ma
2025-10-16 9:12 ` Bryan O'Donoghue
2025-10-20 5:59 ` Hangxiang Ma
2025-10-16 10:04 ` Bryan O'Donoghue
2025-10-16 10:18 ` Bryan O'Donoghue
2025-10-16 22:03 ` Vijay Kumar Tumati
2025-10-16 22:55 ` Vijay Kumar Tumati
2025-10-15 2:56 ` [PATCH v2 6/6] media: qcom: camss: vfe: Add support for VFE 1080 Hangxiang Ma
2025-10-16 10:09 ` Bryan O'Donoghue
2025-10-16 10:33 ` Hangxiang Ma
2025-10-16 10:54 ` Bryan O'Donoghue [this message]
2025-10-16 23:28 ` Vijay Kumar Tumati
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=f5df1c29-a1cd-4cc7-8ac4-b4aefc4225b0@kernel.org \
--to=bod@kernel.org \
--cc=aiqun.yu@oss.qualcomm.com \
--cc=andi.shyti@kernel.org \
--cc=atiya.kailany@oss.qualcomm.com \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=hangxiang.ma@oss.qualcomm.com \
--cc=jingyi.wang@oss.qualcomm.com \
--cc=krzk+dt@kernel.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-i2c@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-media@vger.kernel.org \
--cc=loic.poulain@oss.qualcomm.com \
--cc=mchehab@kernel.org \
--cc=rfoss@kernel.org \
--cc=robh@kernel.org \
--cc=tingwei.zhang@oss.qualcomm.com \
--cc=todor.too@gmail.com \
--cc=trilok.soni@oss.qualcomm.com \
--cc=vladimir.zapolskiy@linaro.org \
--cc=yijie.yang@oss.qualcomm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).