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From: Krzysztof Kozlowski <krzk@kernel.org>
To: Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
	Bryan O'Donoghue <bod@kernel.org>,
	Vikash Garodia <vikash.garodia@oss.qualcomm.com>,
	Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>,
	Abhinav Kumar <abhinav.kumar@linux.dev>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Bjorn Andersson <andersson@kernel.org>,
	Konrad Dybcio <konradybcio@kernel.org>,
	Stanimir Varbanov <stanimir.varbanov@linaro.org>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>,
	Stephan Gerhold <stephan.gerhold@linaro.org>
Cc: linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>,
	stable@vger.kernel.org, Daniel J Blueman <daniel@quora.org>
Subject: Re: [PATCH v2 01/12] dt-bindings: media: qcom,venus: Add context bank subnodes to common schema
Date: Thu, 6 Aug 2026 12:32:14 +0200	[thread overview]
Message-ID: <72b4edc0-dc80-484d-a2b0-88ea11ae001e@kernel.org> (raw)
In-Reply-To: <72b267c5-6490-453a-9900-b196d1cfc5f8@linaro.org>

On 06/08/2026 12:24, Bryan O'Donoghue wrote:
> On 06/08/2026 11:14, Krzysztof Kozlowski wrote:
>> On 06/08/2026 12:07, Bryan O'Donoghue wrote:
>>> I tend to think - absent an obvious an immediately applicable fix these
>>> two drivers must be marked BROKEN, the alternative is to apply Daniel's
>>> fix and then live with the results for the bindings.
>>>
>>> Since the DT schema change is still under debate - what alternative is
>>> there ?
>>>
>>> I'm not far off sending that patch now myself because I'm not seeing
>>> urgency on fixing this and TBH that's pissing me off.
>>>
>>> As a user of a system, I expect resonsible and honest behaviour wrt to
>>> bugs, not architecture astronauty while my system can still reset
>>> despite perfectly functional fixes being available.
>>>
>>> Great you want to do sub-nodes in DT. Not great, that's not agreed yet,
>>> even more not great - the venus stuff isn't even on the list.
>>>
>>> Please indicate what should be done for -stable this week else both of
>>> these drivers need to be marked BROKEN.
>>
>> Nothing should be done for stable. Or rather: you can do whatever you
>> wish for the stable, because we discuss here mainline, not stable kernel.
>>
>> There is no problem here "devices running stable kernel are affected"
>> which we are solving.
>>
>> The only problem we are solving is "devices running mainline kernel are
>> affected". Fix this one and stable will follow.
>>
>> Best regards,
>> Krzysztof
> 
> Yes -master.
> 
> My issue is how long this will take. Several kernel cycles and the 
> debate is ongoing.
> 
> Daneil's fix has not been applied which means the replicable system bug 
> is out there in the wild, not addressed.
> 
> Daniel's fix could have been applied and rolled out to all users in 
> mainline and consequently stable.
> 
> Instead another architectural level fix is still under discussion, which 
> is of no value to end users whose systems can reset in the meantime.
> 
> Its just not responsible behaviour. So I feel both of these drivers need 
> to be marked as BROKEN unless/until a fix lands.
> 
> I'm hoping the vidc team will come up with something else.

I did not object taking a known fix for the problem for the mainline
kernel, regardless if the fix is optimal or not. I only objected the
reason of taking patches because of something in stable kernels or
making backports easier or whatever other semi-expressed reason, which
is not the mainline-kernel reason.

Best regards,
Krzysztof

  reply	other threads:[~2026-08-06 10:32 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-31 18:22 [PATCH v2 00/12] media: iris: Migrate iommus to iris sub nodes Vikash Garodia
2026-07-31 18:22 ` [PATCH v2 01/12] dt-bindings: media: qcom,venus: Add context bank subnodes to common schema Vikash Garodia
2026-07-31 18:36   ` sashiko-bot
2026-08-01 10:06   ` Bryan O'Donoghue
2026-08-06  5:21     ` Vikash Garodia
2026-08-06  7:54       ` Bryan O'Donoghue
2026-08-06  7:57         ` Vikash Garodia
2026-08-06  9:40           ` Bryan O'Donoghue
2026-08-06 10:07             ` Bryan O'Donoghue
2026-08-06 10:14               ` Krzysztof Kozlowski
2026-08-06 10:24                 ` Bryan O'Donoghue
2026-08-06 10:32                   ` Krzysztof Kozlowski [this message]
2026-08-06 10:50                     ` Bryan O'Donoghue
2026-08-06 11:14                       ` Dmitry Baryshkov
2026-08-06 11:19                         ` Bryan O'Donoghue
2026-08-06 12:20                         ` Vikash Garodia
2026-08-05  7:21   ` Krzysztof Kozlowski
2026-08-05 10:37     ` Krzysztof Kozlowski
2026-08-06  8:46       ` Dmitry Baryshkov
2026-08-06  9:11         ` Krzysztof Kozlowski
2026-08-06  9:20           ` Krzysztof Kozlowski
2026-08-06  9:22           ` Dmitry Baryshkov
2026-08-06  9:36             ` Krzysztof Kozlowski
2026-08-06 10:35               ` Dmitry Baryshkov
2026-08-06 11:56                 ` Vikash Garodia
2026-08-06 12:10                   ` Dmitry Baryshkov
2026-08-06  8:49   ` Dmitry Baryshkov
2026-08-06  9:52     ` Vikash Garodia
2026-08-06 10:38       ` Dmitry Baryshkov
2026-07-31 18:22 ` [PATCH v2 02/12] dt-bindings: media: qcom,sm8550-iris: Add context bank subnodes Vikash Garodia
2026-07-31 18:31   ` sashiko-bot
2026-07-31 20:36   ` Rob Herring (Arm)
2026-08-06  8:51     ` Dmitry Baryshkov
2026-08-05  7:21   ` Krzysztof Kozlowski
2026-07-31 18:22 ` [PATCH v2 03/12] media: iris: Add platform hooks for context bank device setup Vikash Garodia
2026-07-31 18:36   ` sashiko-bot
2026-08-06  8:53   ` Dmitry Baryshkov
2026-07-31 18:22 ` [PATCH v2 04/12] media: iris: Add helper to create a context bank device Vikash Garodia
2026-08-06  8:57   ` Dmitry Baryshkov
2026-08-06 10:08     ` Vikash Garodia
2026-08-06 10:18       ` Krzysztof Kozlowski
2026-07-31 18:22 ` [PATCH v2 05/12] media: iris: Route buffers to the matching " Vikash Garodia
2026-07-31 18:57   ` sashiko-bot
2026-08-06  9:03   ` Dmitry Baryshkov
2026-07-31 18:22 ` [PATCH v2 06/12] media: iris: Skip DMA mask setup when the core device has no IOMMU Vikash Garodia
2026-07-31 18:43   ` sashiko-bot
2026-07-31 18:22 ` [PATCH v2 07/12] media: iris: Create pixel and non-pixel context banks on VPU3x Vikash Garodia
2026-07-31 18:41   ` sashiko-bot
2026-08-06  9:07   ` Dmitry Baryshkov
2026-08-06 10:06     ` Vikash Garodia
2026-08-06 10:53       ` Dmitry Baryshkov
2026-07-31 18:22 ` [PATCH v2 08/12] arm64: dts: qcom: hamoa: Add Iris context bank subnodes Vikash Garodia
2026-07-31 18:22 ` [PATCH v2 09/12] arm64: dts: qcom: sm8550: " Vikash Garodia
2026-07-31 18:38   ` sashiko-bot
2026-07-31 18:22 ` [PATCH v2 10/12] arm64: dts: qcom: lemans: " Vikash Garodia
2026-07-31 18:22 ` [PATCH v2 11/12] arm64: dts: qcom: monaco: " Vikash Garodia
2026-07-31 18:22 ` [PATCH v2 12/12] arm64: dts: qcom: sm8650: " Vikash Garodia

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