OMAP PM status?

OMAP PM status?

[Kalle Valo]

Hi Kevin,

as you might guess, I'm eagerly waiting for OMAP PM support to hit
mainline :) I'm just curious, what's the current status? Are we going to
get PM support in 2.6.32?

Especially I'm interested about 2420 support for n8x0.

-- 
Kalle Valo

Re: OMAP PM status?

[Kevin Hilman]

Hi Kalle,

Kalle Valo <kalle.valo@iki.fi> writes:

> as you might guess, I'm eagerly waiting for OMAP PM support to hit
> mainline :) I'm just curious, what's the current status? Are we
> going to get PM support in 2.6.32?

Hmmm, good question.  To avoid giving an answer that can be archived
and used against me, I updated the PM branch wiki page[1] with a
'mainline plans' section[2] which I can edit as plans slip^Wchange. :)

> Especially I'm interested about 2420 support for n8x0.

Well, I'm afraid I've done basically no testing for OMAP2, and have
been focusing solely on OMAP3.  I'm pretty sure things at least should
compile for OMAP2, as care has been taken to keep OMAP2 up to speed
with OMAP3 for the base features, but I haven't done any boot testing
on OMAP2 for some time.

That being said, all the infrastructure for OMAP2 that was in
linux-omap is already in mainline so will work as good as it did in
linux-omap.  The last time I actually tried PM on OMAP2, I found/fixed
a bug[3] in the asm sleep code for OMAP2 that was causing fault.  At
least it no longer faults when suspended

Of course, I'll be glad to take any OMAP2 patches/fixes and get them
upstream with the rest of my changes, but I'm afraid with my current
plans, I do not have the cycles to spend on OMAP2.

Kevin


[1] http://elinux.org/OMAP_Power_Management
[2] http://elinux.org/OMAP_Power_Management#mainline_plans
[3] http://git.kernel.org/?p=linux/kernel/git/tmlind/linux-omap-2.6.git;a=commit;h=c4adf767e0569c712f7c44ba37c4df9b47ea4121

Re: OMAP PM status?

[Kalle Valo]

Kevin Hilman <khilman@deeprootsystems.com> writes:

> Hi Kalle,

Hello,

> Kalle Valo <kalle.valo@iki.fi> writes:
>
>> as you might guess, I'm eagerly waiting for OMAP PM support to hit
>> mainline :) I'm just curious, what's the current status? Are we
>> going to get PM support in 2.6.32?
>
> Hmmm, good question.  To avoid giving an answer that can be archived
> and used against me, I updated the PM branch wiki page[1] with a
> 'mainline plans' section[2] which I can edit as plans slip^Wchange. :)

Excellent, the page was very helpful for me and I'm sure also for
others.

>> Especially I'm interested about 2420 support for n8x0.
>
> Well, I'm afraid I've done basically no testing for OMAP2, and have
> been focusing solely on OMAP3.  I'm pretty sure things at least should
> compile for OMAP2, as care has been taken to keep OMAP2 up to speed
> with OMAP3 for the base features, but I haven't done any boot testing
> on OMAP2 for some time.

I'm sorry to hear that, but I understand that you don't have time for
everything.

> That being said, all the infrastructure for OMAP2 that was in
> linux-omap is already in mainline so will work as good as it did in
> linux-omap.  The last time I actually tried PM on OMAP2, I found/fixed
> a bug[3] in the asm sleep code for OMAP2 that was causing fault.  At
> least it no longer faults when suspended
>
> Of course, I'll be glad to take any OMAP2 patches/fixes and get them
> upstream with the rest of my changes, but I'm afraid with my current
> plans, I do not have the cycles to spend on OMAP2.

As soon as I find some spare time (which usually means three to four
months from now :) I'll start experimenting with N800 PM. If I have any
problems, I'll send email to the list as usual.

Thanks.

-- 
Kalle Valo