linux-kernel - [PATCH v1 0/7] Add thermal cooling support to NVIDIA Tegra devfreq

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Date:   Tue, 11 May 2021 00:10:01 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Rob Herring <robh+dt@...nel.org>,
        MyungJoo Ham <myungjoo.ham@...sung.com>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Peter Geis <pgwipeout@...il.com>,
        Matt Merhar <mattmerhar@...tonmail.com>
Cc:     linux-tegra@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: [PATCH v1 0/7] Add thermal cooling support to NVIDIA Tegra devfreq

Hi,

Some hardware versions of NVIDIA Tegra SoCs support higher freqs and they
are producing much more heat than the other versions. We found that CPU
throttling may be not enough on devices like Asus Transformer TF700T,
which is Tegra30 tablet device. This series adds thermal cooling support
to the NVIDIA Tegra30+ devfreq which cools down SoC by throttling memory
frequency on overheat.

Dmitry Osipenko (7):
  PM / devfreq: tegra30: Support thermal cooling
  ARM: tegra_defconfig: Enable CONFIG_DEVFREQ_THERMAL
  dt-bindings: devfreq: tegra30-actmon: Convert to schema
  dt-bindings: devfreq: tegra30-actmon: Add cooling-cells
  ARM: tegra: Add cooling cells to ACTMON device-tree node
  ARM: tegra: nexus7: Enable memory frequency thermal throttling using
    ACTMON
  ARM: tegra: ouya: Enable memory frequency thermal throttling using
    ACTMON

 .../arm/tegra/nvidia,tegra30-actmon.txt       |  57 --------
 .../devfreq/nvidia,tegra30-actmon.yaml        | 126 ++++++++++++++++++
 arch/arm/boot/dts/tegra124.dtsi               |   3 +-
 .../tegra30-asus-nexus7-grouper-common.dtsi   |   3 +-
 arch/arm/boot/dts/tegra30-ouya.dts            |   3 +-
 arch/arm/boot/dts/tegra30.dtsi                |   3 +-
 arch/arm/configs/tegra_defconfig              |   1 +
 drivers/devfreq/tegra30-devfreq.c             |   1 +
 8 files changed, 136 insertions(+), 61 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/arm/tegra/nvidia,tegra30-actmon.txt
 create mode 100644 Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml

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