linux-kernel - Re: [PATCH 12/12] arm64: dts: qcom: x1e80100: add Coresight nodes for APSS debug block

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Message-ID: <38628ff7-8080-4ab2-a9a7-78b51f3f699b@oss.qualcomm.com>
Date: Tue, 28 Oct 2025 10:28:51 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Yuanfang Zhang <yuanfang.zhang@....qualcomm.com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Mike Leach
 <mike.leach@...aro.org>,
        James Clark <james.clark@...aro.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Leo Yan <leo.yan@...ux.dev>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: kernel@....qualcomm.com, coresight@...ts.linaro.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        Jie Gan <jie.gan@....qualcomm.com>, Johan Hovold <johan@...nel.org>
Subject: Re: [PATCH 12/12] arm64: dts: qcom: x1e80100: add Coresight nodes for
 APSS debug block

On 10/28/25 7:28 AM, Yuanfang Zhang wrote:
> Add below Coresight devices for APSS debug block:
> -ETM
> -TMC ETF
> -Funnel
> -Replicator

This is a really crude commit message.. please take the opportunity
to describe the topology, any updates/quirks/exciting new features

[...]

> +			out-ports {
> +				port {
> +					apss_funnel_out: endpoint {
> +						remote-endpoint =
> +						<&funnel1_in4>;
> +					};

Unbreak this line

The X1P part doesn't apply on on next-20251027.. I see that your base
is some coresight branch - is it part of linux-next? If so, you can
just base your series on that.

I can confirm an unfused X1E80100 still boots up with this change

Although the problem that was originally brought up here:

https://lore.kernel.org/linux-arm-msm/Z6t45aOGDkotqM4Z@hovoldconsulting.com/

still exists..

$ dmesg | grep replicator | wc -l
128

otherwise lgtm

Konrad