linux-kernel - [PATCH v1 0/8] Add RemoteProc cooling support

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Message-Id: <20251223123227.1317244-1-gaurav.kohli@oss.qualcomm.com>
Date: Tue, 23 Dec 2025 18:02:19 +0530
From: Gaurav Kohli <gaurav.kohli@....qualcomm.com>
To: andersson@...nel.org, mathieu.poirier@...aro.org, robh@...nel.org,
        krzk+dt@...nel.org, conor+dt@...nel.org, rafael@...nel.org,
        daniel.lezcano@...aro.org, rui.zhang@...el.com, lukasz.luba@....com,
        konradybcio@...nel.org, amitk@...nel.org, mani@...nel.org,
        casey.connolly@...aro.org
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        Gaurav Kohli <gaurav.kohli@....qualcomm.com>
Subject: [PATCH v1 0/8] Add RemoteProc cooling support

This series introduces a generic remote proc cooling framework to control 
thermal sensors located on remote subsystem like modem, dsp etc.
Communications with these subsystems occurs through various channels, for example, 
QMI interface for Qualcomm.
 
The Framework provides an abstraction layer between thermal subsytem and vendor
specific remote subsystem. Vendor drivers are expected to implement callback 
and registration mechanisms with cooling framework to control cooling
devices.

This patchset also revives earlier discussions of QMI based TMD cooling
devices discussion posted on below series by Casey: 
https://lore.kernel.org/linux-devicetree/20230905-caleb-qmi_cooling-v1-0-5aa39d4164a7@linaro.org/

That series introduced Qualcomm QMI-based TMD cooling devices which used
to mitigate thermal conditions across multiple remote subsystems. These 
devices operate based on junction temperature sensors (TSENS) associated 
with thermal zones for each subsystem and registering with remoteproc 
cooling framework for cooling registration.

This patch series has a compilation/runtime dependency on another series [1].

[1] https://lore.kernel.org/linux-devicetree/20250822042316.1762153-1-quic_gkohli@quicinc.com/

Casey Connolly (2):
  remoteproc: qcom: probe all child devices
  thermal: qcom: add qmi-cooling driver

Gaurav Kohli (6):
  thermal: Add Remote Proc cooling driver
  dt-bindings: thermal: Add qcom,qmi-cooling yaml bindings
  arm64: dts: qcom: Enable cdsp qmi tmd devices for lemans
  arm64: dts: qcom: Enable cdsp qmi tmd devices for talos
  arm64: dts: qcom: Enable cdsp qmi tmd devices for kodiak
  arm64: dts: qcom: Enable cdsp qmi tmd devices for monaco

 .../bindings/remoteproc/qcom,pas-common.yaml  |   6 +
 .../bindings/thermal/qcom,qmi-cooling.yaml    |  99 ++++
 MAINTAINERS                                   |   8 +
 arch/arm64/boot/dts/qcom/kodiak.dtsi          |  36 ++
 arch/arm64/boot/dts/qcom/lemans.dtsi          | 138 ++++-
 arch/arm64/boot/dts/qcom/monaco.dtsi          |  92 ++++
 arch/arm64/boot/dts/qcom/talos.dtsi           |  23 +
 drivers/remoteproc/qcom_q6v5.c                |   4 +
 drivers/remoteproc/qcom_q6v5_mss.c            |   8 -
 drivers/soc/qcom/Kconfig                      |  13 +
 drivers/soc/qcom/Makefile                     |   1 +
 drivers/soc/qcom/qmi-cooling.c                | 498 ++++++++++++++++++
 drivers/soc/qcom/qmi-cooling.h                | 428 +++++++++++++++
 drivers/thermal/Kconfig                       |  11 +
 drivers/thermal/Makefile                      |   2 +
 drivers/thermal/qcom/qmi-cooling.h            | 428 +++++++++++++++
 drivers/thermal/remoteproc_cooling.c          | 154 ++++++
 include/linux/remoteproc_cooling.h            |  52 ++
 18 files changed, 1981 insertions(+), 20 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/thermal/qcom,qmi-cooling.yaml
 create mode 100644 drivers/soc/qcom/qmi-cooling.c
 create mode 100644 drivers/soc/qcom/qmi-cooling.h
 create mode 100644 drivers/thermal/qcom/qmi-cooling.h
 create mode 100644 drivers/thermal/remoteproc_cooling.c
 create mode 100644 include/linux/remoteproc_cooling.h

-- 
2.34.1