Messages in this thread | | | From | Nicola Mazzucato <> | Subject | [PATCH v3 0/3] CPUFreq: Add support for cpu performance dependencies | Date | Mon, 2 Nov 2020 12:01:12 +0000 |
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Hi All,
In this V3 posting I have replaced the new dt-binding with minor changes/ improvements for opp (since we are now using opp tables instead). The RFC still stands on how to make this info available to sw consumers.
In the RFC, I am proposing a simple addition of a performance dependencies cpumask in CPUFreq core and an example of how drivers and consumers would make use of it. I also propose an alternative approach, which does not require changes in CPUFreq core, but - possibly - in all the consumers.
This is to support systems where exposed cpu performance controls are more fine-grained that the platform's ability to scale cpus independently.
[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 [RFC] CPUFreq: Add support for cpu-perf-dependencies
Documentation/devicetree/bindings/opp/opp.txt | 53 +++++++++++++++++++ drivers/opp/of.c | 13 ++++- 2 files changed, 64 insertions(+), 2 deletions(-)
-- 2.27.0
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