From: Jie Gan <jie.gan@oss.qualcomm.com>
To: Leo Yan <leo.yan@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>,
Mike Leach <mike.leach@arm.com>,
James Clark <james.clark@linaro.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Richard Cheng <icheng@nvidia.com>,
coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] coresight: fix trace ID search skipping pass-through NoC devices
Date: Wed, 2 Sep 2026 16:52:39 +0800 [thread overview]
Message-ID: <163b2dba-0af9-4594-8067-be9e711bb4b4@oss.qualcomm.com> (raw)
In-Reply-To: <20260902084538.GU8904@e132581.arm.com>
On 9/2/2026 4:45 PM, Leo Yan wrote:
> On Wed, Sep 02, 2026 at 04:35:11PM +0800, Jie Gan wrote:
>
> [...]
>
>> Hi Leo,
>>
>> Thanks for the suggestion.
>
> You're welcome!
>
>> I will fix this in the TNOC driver. I agree that there is no need to use
>> additional error codes to report the failure.
>>
>> I will post the new fix patch after below patch[1] to be applied to avoid
>> conflict.
>
> The patch in the link has no fix tag, but current patch is a simple fix.
I called it as a fix because the TNOC device cannot be probed by the
AMBA driver unless the PID is manually assigned. This is a hardware
limitation rather than a driver issue. The problem is resolved by
switching the device to use a platform driver, so I didnt add a fixes tag.
I will send the simple fix first. Depending on which patch gets applied
first, I'll respin the other one to avoid conflicts.
Thanks,
Jie
> I'd suggest to give priority this patch - this is friendly for porting
> to stable kernels.
>
> If there have dependency (based on your local test), you could explictly
> mention the dependency in cover letter and resend the tnoc probe series.
>
> Thanks,
> Leo
>
>> [1] https://lore.kernel.org/all/20260710-fix-tracenoc-probe-issue-v6-2-41eb36fef8d9@oss.qualcomm.com/
prev parent reply other threads:[~2026-09-02 8:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-17 8:50 [PATCH] coresight: fix trace ID search skipping pass-through NoC devices Jie Gan
2026-09-02 6:00 ` Jie Gan
2026-09-02 8:22 ` Leo Yan
2026-09-02 8:35 ` Jie Gan
2026-09-02 8:45 ` Leo Yan
2026-09-02 8:52 ` Jie Gan [this message]
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