PM branch updated
FYI...
I just pushed an updated PM branch which was rebased to current omap/master (which is based on v2.6.31-rc5)
This includes a few fixes from the list, but in particular the SRF fixes from Ranjith so that DVFS can be done again.
Basic testing on SDP and EVM only.
Kevin
Quoted 9 lines · ext Kevin Hilman
FYI...
I just pushed an updated PM branch which was rebased to current omap/master (which is based on v2.6.31-rc5)
This includes a few fixes from the list, but in particular the SRF fixes from Ranjith so that DVFS can be done again.
Basic testing on SDP and EVM only.
Basic testing on RX51 too. works like a charm :)
Quoted 7 lines
Kevin
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Quoted 2 lines · Kevin Hilman
I just pushed an updated PM branch which was rebased to current omap/master (which is based on v2.6.31-rc5)
Also, please check out
http://elinux.org/OMAP_Power_Management
This page includes the stuff I normally put in the announcment of a new PM branch, but also tries to describe how to use the various features of the PM branch (which has been sorely missing for a while.)
Comments/feedback welcome, and feel free to update/edit as well.
Kevin
Hi Kevin,
Quoted 11 lines · On Thursday 06 August 2009 19:13:06 Kevin Hilman wrote:
Quoted 2 lines · Kevin Hilman
I just pushed an updated PM branch which was rebased to current omap/master (which is based on v2.6.31-rc5)
Also, please check out
http://elinux.org/OMAP_Power_Management
This page includes the stuff I normally put in the announcment of a new PM branch, but also tries to describe how to use the various features of the PM branch (which has been sorely missing for a while.)
I think this page had been long-awaited. Thanks a lot for putting it together.
One question about it:
What about the cpufreq interface for doing DVFS? Is it preferred way to change OPPs or is it using /sys/power/vddx_opp? I think cpufreq utils are more standard, easier to use and to understand.
Jean
Quoted 8 lines
Comments/feedback welcome, and feel free to update/edit as well.
Kevin
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Quoted 13 lines · Jean Pihet
Quoted 11 lines · On Thursday 06 August 2009 19:13:06 Kevin Hilman wrote:
Quoted 2 lines · Kevin Hilman
I just pushed an updated PM branch which was rebased to current omap/master (which is based on v2.6.31-rc5)
Also, please check out
http://elinux.org/OMAP_Power_Management
This page includes the stuff I normally put in the announcment of a new PM branch, but also tries to describe how to use the various features of the PM branch (which has been sorely missing for a while.)
Quoted 8 lines
I think this page had been long-awaited. Thanks a lot for putting it together.
One question about it:
What about the cpufreq interface for doing DVFS? Is it preferred way to change OPPs or is it using
/sys/power/vddx_opp? I think cpufreq utils are more standard, easier to use and to understand.
CPUfreq is much preferred. The /sys/power/vdd* are just for manual testing and more fore PM developers than PM users.
Hey, sounds like a perfect opportunity for you to update the wiki. ;)
Kevin
Hi Kevin,
Quoted 17 lines · On Friday 07 August 2009 19:11:20 Kevin Hilman wrote:
Quoted 16 lines · Jean Pihet
Quoted 11 lines · On Thursday 06 August 2009 19:13:06 Kevin Hilman wrote:
Quoted 2 lines · Kevin Hilman
I just pushed an updated PM branch which was rebased to current omap/master (which is based on v2.6.31-rc5)
Also, please check out
http://elinux.org/OMAP_Power_Management
This page includes the stuff I normally put in the announcment of a new PM branch, but also tries to describe how to use the various features of the PM branch (which has been sorely missing for a while.)
I think this page had been long-awaited. Thanks a lot for putting it together.
Quoted 8 lines
Quoted 5 lines
One question about it:
What about the cpufreq interface for doing DVFS? Is it preferred way to change OPPs or is it using
/sys/power/vddx_opp? I think cpufreq utils are more standard, easier to use and to understand.CPUfreq is much preferred. The
/sys/power/vdd*are just for manual testing and more fore PM developers than PM users.
Ok, thanks for the confirmation.
Quoted 1 line
Hey, sounds like a perfect opportunity for you to update the wiki. ;)
Exactly! http://elinux.org/OMAP_Power_Management has been updated with per-feature usage, CPUfreq kernel interface and debugging info for power users ;p
Can you check it?
Quoted 2 lines
Kevin
Jean