linux-kernel - [RFC PATCH v1 0/2] Add platform specific callbacks for cpu cooling

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Date:   Wed, 15 Apr 2020 11:09:57 +0800
From:   zhang.lyra@...il.com
To:     linux-pm@...r.kernel.org
Cc:     Amit Daniel Kachhap <amit.kachhap@...il.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Javi Merino <javi.merino@...nel.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Amit Kucheria <amit.kucheria@...durent.com>,
        linux-kernel@...r.kernel.org, Orson Zhai <orsonzhai@...il.com>,
        Baolin Wang <baolin.wang7@...il.com>,
        Chunyan Zhang <zhang.lyra@...il.com>,
        Chunyan Zhang <chunyan.zhang@...soc.com>
Subject: [RFC PATCH v1 0/2] Add platform specific callbacks for cpu cooling

From: Jeson Gao <jeson.gao@...soc.com>

Reducing frequency to too low will affect the system performance, and
sometimes the temperature could not cool down to an ideal value as well
even if the frequency was reduced to the lowest.

This patch provides users a callback to set its own frequency limit to
prevent cpu frequence from being reduced too low. And also give an interface
to allow users to register specific cooling operations, such as unplug cores
or cpu isolation.

Any comments are very appreciated.

jeson.gao (2):
  thermal/drivers/cpufreq_cooling: Add platform callback functions
  thermal/drivers/sprd_cpu_cooling: Add platform mitigation thermal
    driver

 drivers/thermal/Kconfig            |   8 +
 drivers/thermal/Makefile           |   1 +
 drivers/thermal/cpufreq_cooling.c  |  53 +++++
 drivers/thermal/sprd_cpu_cooling.c | 340 +++++++++++++++++++++++++++++
 include/linux/cpu_cooling.h        |  30 +++
 5 files changed, 432 insertions(+)
 create mode 100644 drivers/thermal/sprd_cpu_cooling.c

-- 
2.20.1