amit.kucheria at linaro.org
Wed Nov 30 19:41:37 UTC 2011
Wow - quite a cc-list :)
On Tue, Nov 29, 2011 at 7:47 PM, Zach Pfeffer <zach.pfeffer at linaro.org> wrote:
> What's your guys plan with cpu_idle for each board? Are you going to
> try and upstream a solution that will work across all boards? Would
> you or Mounir be open to filing a BP per board so we can track when
> cpu_idle will hit each board? Does it make sense to prototype
> something across each board that we could land in Ubuntu and Android?
> Adding other people, leads, etc...
I'll add four more.
The people I've added to cc are the ones looking at upstreaming
cpuidle for the various member platforms (the first 3 are Linaro
Samsung - Amit Kachhap
ST-E - Daniel Lezcano
Freescale - Rob Lee
TI - Kevin Hilman and Santosh Shilimkar
Rob tried to upstream a driver for the imx5 platform. Russell
suggested that it is time to have a common cpuidle stub driver for
Daniel Lezcano and Rob are currently working on such a common stub
driver. The imx5 cpuidle will get rebased on top of that. Daniel has
actively started work on a u8500 cpuidle driver in the meanwhile but
is awaiting documentation.
For OMAP4, I was told that there was now a cpuidle driver on its way
into mainline. But I didn't find one after a cursory glance at the
lists. Perhaps Kevin/Santosh can shed some light there. The last known
tree I was aware of for an OMAP4 cpuidle driver was TI maintained
For exynos, there is a basic cpuidle driver in mainline. Amit Kachhap
has been working on enhancing it (adding more states and using more
of the common code that was recently added).
In summary, we should have cpuidle working on the member platforms in
the coming month. If you want something today, you should look at
enabling OMAP4 and Exynos cpuidle configs.
p.s Andy, was the breakage you reported in cpuidle related to the
missing export.h patch?
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