From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Jie Gan <jie.gan@oss.qualcomm.com>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Abel Vesa <abelvesa@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>
Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/4] arm64: dts: qcom: hamoa: Add CoreSight nodes for APSS debug block
Date: Tue, 13 Oct 2026 14:46:53 +0200 [thread overview]
Message-ID: <7fccb993-8605-4eb6-afd5-94edef1d487d@oss.qualcomm.com> (raw)
In-Reply-To: <20260922-add-etm-devices-for-multiple-qcom-platforms-v1-1-c2a8c3225a2e@oss.qualcomm.com>
On 9/22/26 12:35 PM, Jie Gan wrote:
> The APSS debug block is built with CoreSight devices like ETM,
> replicator, funnel and TMC ETF. Add dt nodes for these devices to enable
> ETM trace.
>
> The replicator, funnel and TMC ETF nodes in this block are physically
> powered by the CPU cluster power rail rather than by a dedicated always-on
> rail. Add a power-domains property referencing the corresponding
> cluster_pdN domain to each of these nodes, so their power state is
> tied to the CPU cluster domain and the runtime PM core can power the
> domain on before the devices are accessed and let it be powered off
> otherwise.
>
> Signed-off-by: Jie Gan <jie.gan@oss.qualcomm.com>
> ---
[...]
> + funnel@12080000 {
> + compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
> + reg = <0x0 0x12080000 0x0 0x1000>;
> +
> + clocks = <&aoss_qmp>;
> + clock-names = "apb_pclk";
> +
> + in-ports {
No need for power-domains here? (also same question for the other
platforms)
Konrad
next prev parent reply other threads:[~2026-10-13 12:46 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-22 10:35 [PATCH 0/4] Add ETM devices for multiple QCOM platforms Jie Gan
2026-09-22 10:35 ` [PATCH 1/4] arm64: dts: qcom: hamoa: Add CoreSight nodes for APSS debug block Jie Gan
2026-10-13 12:46 ` Konrad Dybcio [this message]
2026-10-14 1:13 ` Jie Gan
2026-09-22 10:35 ` [PATCH 2/4] arm64: dts: qcom: sm8750: " Jie Gan
2026-09-22 10:35 ` [PATCH 3/4] arm64: dts: qcom: kaanapali: " Jie Gan
2026-10-13 12:49 ` Konrad Dybcio
2026-10-14 1:23 ` Jie Gan
2026-09-22 10:35 ` [PATCH 4/4] arm64: dts: qcom: glymur: " Jie Gan
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=7fccb993-8605-4eb6-afd5-94edef1d487d@oss.qualcomm.com \
--to=konrad.dybcio@oss.qualcomm.com \
--cc=abelvesa@kernel.org \
--cc=andersson@kernel.org \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=jie.gan@oss.qualcomm.com \
--cc=konradybcio@kernel.org \
--cc=krzk+dt@kernel.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=robh@kernel.org \
/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
all inboxes | Powered by JetHome®