linux-kernel - [PATCH v4 0/4] CPUFreq: Add support for opp-sharing cpus

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Date:   Wed,  2 Dec 2020 17:23:52 +0000
From:   Nicola Mazzucato <nicola.mazzucato@....com>
To:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        sudeep.holla@....com, rjw@...ysocki.net, vireshk@...nel.org,
        robh+dt@...nel.org, sboyd@...nel.org, nm@...com
Cc:     daniel.lezcano@...aro.org, morten.rasmussen@....com,
        chris.redpath@....com, nicola.mazzucato@....com
Subject: [PATCH v4 0/4] CPUFreq: Add support for opp-sharing cpus

Hi All,

In this V4 posting I have fixed suggestions on opp/of and have added the
implementation for scmi-cpufreq driver.

This is to support systems where exposed cpu performance controls are more
fine-grained that the platform's ability to scale cpus independently.

[v4]
  * Remove unconditional set of opp_table->shared_opp to exclusive
  * Add implementation for scmi-cpufreq
  * Change subject

These patches are on top of:
next-20201201 + Lukasz Luba's patches (waiting for Rafael) [1]

[v3]
  * Remove proposal for new 'cpu-performance-dependencies' as we instead
    can reuse the opp table.
  * Update documentation for devicetree/bindings/opp
  * Minor changes within opp to support empty opp table
  * Rework the RFC by adding a second proposal

[v2]
  * Fix errors when running make dt_binding_check
  * Improve commit message description for the dt-binding
  * Add RFC for implementation in cpufreq-core and one of its
    drivers.

Nicola Mazzucato (3):
  dt-bindings/opp: Update documentation for opp-shared
  opp/of: Allow empty opp-table with opp-shared
  scmi-cpufreq: get opp_shared_cpus from opp-v2 for EM

Sudeep Holla (1):
  cpufreq: blacklist Arm Vexpress platforms in cpufreq-dt-platdev

 Documentation/devicetree/bindings/opp/opp.txt | 53 +++++++++++++++++++
 drivers/cpufreq/cpufreq-dt-platdev.c          |  2 +
 drivers/cpufreq/scmi-cpufreq.c                | 51 ++++++++++++------
 drivers/opp/of.c                              |  7 ++-
 4 files changed, 95 insertions(+), 18 deletions(-)

[1] https://lore.kernel.org/linux-pm/20201124104346.27167-1-lukasz.luba@arm.com/

-- 
2.27.0