linux-kernel - [PATCH v2 0/3] Enable QoS configuration on QCS615

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Message-ID: <20260211091112.3285626-1-odelu.kukatla@oss.qualcomm.com>
Date: Wed, 11 Feb 2026 14:41:09 +0530
From: Odelu Kukatla <odelu.kukatla@....qualcomm.com>
To: Georgi Djakov <djakov@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: Raviteja Laggyshetty <raviteja.laggyshetty@....qualcomm.com>,
        Odelu Kukatla <odelu.kukatla@....qualcomm.com>,
        Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
        linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Mike Tipton <mike.tipton@....qualcomm.com>
Subject: [PATCH v2 0/3] Enable QoS configuration on QCS615

This series enables QoS configuration for QNOC type device which
can be found on QCS615 platform. It enables QoS configuration
for master ports with predefined priority and urgency forwarding.
This helps in prioritizing the traffic originating from different
interconnect masters at NOC (Network On Chip). 
The system may function normally without this feature. However,
enabling QoS helps optimize latency and bandwidth across subsystems
like CPU, GPU, and multimedia engines, which becomes important in
high-throughput scenarios. This is a feature aimed at performance
enhancement to improve system performance under concurrent workloads.

Changes in v2:
 - Added the IPA clock to Aggre1 NoC bindings to accurately describe
   all QoS related clock dependencies.
 - Updated the Aggre1 NoC node in device tree to include the IPA clock.

Odelu Kukatla (3):
  dt-bindings: interconnect: qcom,qcs615-rpmh: add clocks property to
    enable QoS
  interconnect: qcom: qcs615: enable QoS configuration
  arm64: dts: qcom: talos: Add clocks for QoS configuration

 .../interconnect/qcom,qcs615-rpmh.yaml        |  46 ++++
 arch/arm64/boot/dts/qcom/talos.dtsi           |   4 +
 drivers/interconnect/qcom/qcs615.c            | 247 ++++++++++++++++++
 3 files changed, 297 insertions(+)

-- 
2.43.0