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Message-Id: <20201208174229.24323-1-nicola.mazzucato@arm.com>
Date: Tue, 8 Dec 2020 17:42:25 +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 v5 0/4] CPUFreq: Add support for opp-sharing cpus
Hi All,
In this V5 posting I have addressed suggestions on opp/of and 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.
Many thanks,
Nicola
[v5]
* Rework documentation of opp-shared within OPP node
* Register EM only for the first CPU within cpumask in driver
* Add check for nr_opp in driver before registering EM
* Add comments on both dev_pm_opp_get_opp_count in driver
* Remove redundant ret=0 in driver
This v5 is rebased on top of:
next-20201208 + Lukasz Luba's patches [1]
[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: Allow empty OPP tables
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 | 54 ++++++++++++++-
drivers/cpufreq/cpufreq-dt-platdev.c | 2 +
drivers/cpufreq/scmi-cpufreq.c | 69 ++++++++++++++-----
drivers/opp/of.c | 7 +-
4 files changed, 110 insertions(+), 22 deletions(-)
[1] https://lore.kernel.org/linux-pm/20201124104346.27167-1-lukasz.luba@arm.com/
--
2.27.0
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