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From: Krishna Kurapati PSSNV <quic_kriskura@quicinc.com>
To: Konrad Dybcio <konrad.dybcio@linaro.org>,
	Doug Anderson <dianders@chromium.org>
Cc: <cros-qcom-dts-watchers@chromium.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Rob Herring <robh@kernel.org>,
	Bjorn Andersson <andersson@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Stephen Boyd <swboyd@chromium.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Matthias Kaehlcke <mka@chromium.org>,
	<linux-kernel@vger.kernel.org>, <linux-arm-msm@vger.kernel.org>,
	<devicetree@vger.kernel.org>, <quic_ppratap@quicinc.com>,
	<quic_jackp@quicinc.com>
Subject: Re: [PATCH 0/2] Disable SS instances in park mode for SC7180/ SC7280
Date: Fri, 31 May 2024 20:22:02 +0530	[thread overview]
Message-ID: <68621b7a-0079-49ad-adf0-71d1fe24bcf0@quicinc.com> (raw)
In-Reply-To: <33db558f-2863-4246-a06a-d94ae2efc0a1@linaro.org>



On 5/31/2024 8:11 PM, Konrad Dybcio wrote:
> On 31.05.2024 4:31 PM, Doug Anderson wrote:
>> Hi,
>>
>> On Fri, May 31, 2024 at 7:27 AM Krishna Kurapati PSSNV
>> <quic_kriskura@quicinc.com> wrote:
>>>
>>>> My only guess is that somehow SC8280XP is faster and that changes the
>>>> timing of how it handles interrupts. I guess you could try capping
>>>> your cpufreq in sysfs and see if that makes a difference in
>>>> reproducing. ;-) ...or maybe somehow SC8280XP has a newer version of
>>>> the IP where they've fixed this?
>>>>
>>>> It would be interesting if someone with a SDM845 dragonboard could try
>>>> replicating since that seems highly likely to reproduce, at least.
>>>>
>>>
>>> Hi Konrad, Doug,
>>>
>>>    Usually on downstream we set this quirk only for all Gen-1 targets
>>> (not particularly for this testcase) but to avoid these kind of
>>> controller going dead issues. I can filter out the gen-1 targets (other
>>> than sc7280/sc7180) and send a separate series to add this quirk in all
>>> of them.
>>
>> Sounds like a plan to me!
> 
> Yep!
> 
> In case there are more gen1 platforms than what we have upstream, it would
> be of great utility if you could list them all, so that we can have a reference
> for future additions, Krishna.
> 

I am not sure if I can give out info on targets that are not on 
upstream. I will check internally if I can do that. Else we can just 
ensure that from now on whenever a Gen-1 target is getting upstreamed, 
this quirk is set.

Regards,
Krishna,

      reply	other threads:[~2024-05-31 14:52 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-30  8:25 Krishna Kurapati
2024-05-30  8:25 ` [PATCH 1/2] arm64: dts: qcom: sc7180: Disable SS instances in park mode Krishna Kurapati
2024-05-30  8:37   ` Dmitry Baryshkov
2024-05-30 13:30   ` Doug Anderson
2024-05-31 23:02   ` Bjorn Andersson
2024-05-30  8:25 ` [PATCH 2/2] arm64: dts: qcom: sc7280: " Krishna Kurapati
2024-05-30 13:31   ` Doug Anderson
2024-05-30 13:34 ` [PATCH 0/2] Disable SS instances in park mode for SC7180/ SC7280 Doug Anderson
2024-05-31 12:33   ` Konrad Dybcio
2024-05-31 14:17     ` Doug Anderson
2024-05-31 14:26       ` Konrad Dybcio
2024-05-31 14:27       ` Krishna Kurapati PSSNV
2024-05-31 14:31         ` Doug Anderson
2024-05-31 14:41           ` Konrad Dybcio
2024-05-31 14:52             ` Krishna Kurapati PSSNV [this message]

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