linux-kernel - [PATCH v2 0/3] coresight-tnoc: Add support for Interconnect TNOC

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Message-Id: <20250819-itnoc-v2-0-2d0e6be44e2f@oss.qualcomm.com>
Date: Tue, 19 Aug 2025 03:27:42 -0700
From: Yuanfang Zhang <yuanfang.zhang@....qualcomm.com>
To: 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>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: kernel@....qualcomm.com, coresight@...ts.linaro.org,
        linux-arm-kernel@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Yuanfang Zhang <yuanfang.zhang@....qualcomm.com>
Subject: [PATCH v2 0/3] coresight-tnoc: Add support for Interconnect TNOC

This patch series adds support for the Qualcomm CoreSight Interconnect TNOC
(Trace Network On Chip) block, which acts as a CoreSight graph link forwarding
trace data from subsystems to the Aggregator TNOC. Unlike the Aggregator TNOC,
this block does not support aggregation or ATID assignment.

Signed-off-by: Yuanfang Zhang <yuanfang.zhang@....qualcomm.com>
---
Changes in v2:
- Refactor the dt-binding file.
- Change "atid" type from u32 to int, set it as "-EOPNOTSUPP" for non-AMBA device.
- Link to v1: https://lore.kernel.org/r/20250815-itnoc-v1-0-62c8e4f7ad32@oss.qualcomm.com

---
Yuanfang Zhang (3):
      dt-bindings: arm: qcom: Add Coresight Interconnect TNOC
      coresight-tnoc: add platform driver to support Interconnect TNOC
      coresight-tnoc: Add runtime PM support for Interconnect TNOC

 .../bindings/arm/qcom,coresight-itnoc.yaml         |  96 ++++++++++++++
 drivers/hwtracing/coresight/coresight-tnoc.c       | 147 ++++++++++++++++++---
 2 files changed, 226 insertions(+), 17 deletions(-)
---
base-commit: 2b52cf338d39d684a1c6af298e8204902c026aca
change-id: 20250815-itnoc-460273d1b80c

Best regards,
-- 
Yuanfang Zhang <yuanfang.zhang@....qualcomm.com>