misc: hw-driven DVFS

Registered by Amit Kucheria on 2010-10-13

NOTE: no members have such hardware and this Blueprint is not being worked on unless the situation changes.

Some SoCs can emit HW events to drive frequency scaling, add a governor to support that.

Some SoCs, for example, i.MX51 has features in the HW, that when turned on, tell the OS when to scale frequency.

This removes the need for polling the load periodically as done by ondemand governor. Design a simple governor that can use this feature.

Blueprint information

Status:
Complete
Approver:
Amit Kucheria
Priority:
Low
Drafter:
Amit Kucheria
Direction:
Needs approval
Assignee:
Rob
Definition:
Obsolete
Series goal:
Accepted for trunk
Implementation:
Not started
Milestone target:
milestone icon backlog
Completed by
Serge Broslavsky on 2013-09-19

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Status:
Postponed

(?)

Work Items

Work items:
[robertdavidlee] hardware cpufreq governor to use HW control available in i.MX51: TODO

Dependency tree

* Blueprints in grey have been implemented.

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