linux-kernel - [PATCH v5 0/9] cpufreq: Add flag to auto-register as cooling device

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Message-Id: <cover.1548737236.git.amit.kucheria@linaro.org>
Date:   Tue, 29 Jan 2019 10:25:06 +0530
From:   Amit Kucheria <amit.kucheria@...aro.org>
To:     linux-kernel@...r.kernel.org
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Eduardo Valentin <edubezval@...il.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Sudeep Holla <sudeep.holla@....com>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Zhang Rui <rui.zhang@...el.com>,
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Mediatek SoC
        support),
        linux-mediatek@...ts.infradead.org (moderated list:ARM/Mediatek SoC
        support),
        linux-pm@...r.kernel.org (open list:CPU FREQUENCY SCALING FRAMEWORK)
Subject: [PATCH v5 0/9] cpufreq: Add flag to auto-register as cooling device

Add a flag for cpufreq drivers to tell cpufreq core to auto-register
themselves as a thermal cooling device.

There series converts over all the drivers except arm_big_little.c.
Tested on SDM845 with the qcom-cpufreq-hw driver. Only compile-tested the
others.

Things needing fixing (but not a blocker for the series):
 - Look at how to detect that we're not in IKS mode in arm_big_little's
   .ready callback.

Changes since v4:
 - Added IS_ENABLED guards in cpufreq.c
 - Changed flag name to CPUFREQ_IS_COOLING_DEV
 - Collected various review tags

Changes since v3:
 - Got rid of wrapper function to register/unregister cooling devices.
   Directly call the function in cpufreq.c

Changes since v2:
 - Get rid of #ifdef'ery and let the pointer exist in all cases
 - Get rid of (!CPU_THERMAL || THERMAL) dependency in all cpufreq drivers'
   Kconfig

Changes since v1:
- Fix compilation failures with allmodconfig
- Get rid of #ifdef in cpufreq.c
- Removed miscellaneous patches and sent them separately
- Merged patches 1 and 2 from v1

Amit Kucheria (9):
  thermal: cpu_cooling: Require thermal core to be compiled in
  cpufreq: Auto-register the driver as a thermal cooling device if asked
  cpufreq: qcom-hw: Register as a cpufreq cooling device
  cpufreq: imx6q: Use auto-registration of thermal cooling device
  cpufreq: cpufreq-dt: Use auto-registration of thermal cooling device
  cpufreq: mediatek: Use auto-registration of thermal cooling device
  cpufreq: qoriq: Use auto-registration of thermal cooling device
  cpufreq: scmi: Use auto-registration of thermal cooling device
  cpufreq: scpi: Use auto-registration of thermal cooling device

 drivers/cpufreq/Kconfig            |  3 ---
 drivers/cpufreq/Kconfig.arm        |  5 -----
 drivers/cpufreq/cpufreq-dt.c       | 14 ++------------
 drivers/cpufreq/cpufreq.c          | 13 +++++++++++++
 drivers/cpufreq/imx6q-cpufreq.c    | 24 ++----------------------
 drivers/cpufreq/mediatek-cpufreq.c | 14 ++------------
 drivers/cpufreq/qcom-cpufreq-hw.c  |  3 ++-
 drivers/cpufreq/qoriq-cpufreq.c    | 15 ++-------------
 drivers/cpufreq/scmi-cpufreq.c     | 14 ++------------
 drivers/cpufreq/scpi-cpufreq.c     | 14 ++------------
 drivers/thermal/Kconfig            |  1 +
 include/linux/cpufreq.h            |  9 +++++++++
 12 files changed, 37 insertions(+), 92 deletions(-)

-- 
2.17.1