PM branch update: rebase to .31-rc, added omap_hwmod/omap_device

PM branch update: rebase to .31-rc, added omap_hwmod/omap_device

[Kevin Hilman]

The PM branch hosted in my linux-omap-pm repo[1] has been updated.

Significant changes:

- rebased to omap/master (currently v2.6.31-rc1)
- Using new omap_hwmod and omap_device infrastructure from Paul Walmsley
- more reorg into groups of commits for easier submission upstream

Tested on the following platforms using omap3_pm_defconfig with
busybox-based initramfs, and tested full-chip RET and OFF in idle and
suspend:

- 3430SDP
- OMAP3EVM
- Beagle
- Overo
- RX51
- Zoom2 (use 'pm-staging/zoom2' branch as well, which is Vikram's
         zoom2 branch rebased on top of PM branch with DEBUG_LL
         support and misc. fixes)

Known problems:

- no DVFS because of next item...

- SRF driver broken, needs update for new hwmod/omap_device layer
  (default config used PM NOOP)

- network drivers and off-mode
  - various hangs when using off-while-idle and NFS-mounted rootfs
  - network drivers likely need some context save/restore support

- SDRAM on 2 CSes (Beagle, Overo, RX51)
  - need to boot with mem=128M so only a single CS is used
  - 2 CS support patches from Jean Pihet solve this problem,
    but not yet merged.

- 3430SDP ES3.0
  - UART1 doesn't come back from off-while-idle (ok on es3.1 SDP)

[1] http://git.kernel.org/?p=linux/kernel/git/khilman/linux-omap-pm.git

Re: PM branch update: rebase to .31-rc, added omap_hwmod/omap_device

[Hemanth V]

----- Original Message ----- 
From: "Kevin Hilman" <khilman@deeprootsystems.com>
> Known problems:
 
> - network drivers and off-mode
>  - various hangs when using off-while-idle and NFS-mounted rootfs
>  - network drivers likely need some context save/restore support

Kevin, was this known to work earlier. Could this be related to
GPMC context save/restore.

Thanks
Hemanth

Re: PM branch update: rebase to .31-rc, added omap_hwmod/omap_device

[Kevin Hilman]

"Hemanth V" <hemanthv@ti.com> writes:

> ----- Original Message ----- 
> From: "Kevin Hilman" <khilman@deeprootsystems.com>
>> Known problems:
>
>> - network drivers and off-mode
>>  - various hangs when using off-while-idle and NFS-mounted rootfs
>>  - network drivers likely need some context save/restore support
>
> Kevin, was this known to work earlier. Could this be related to
> GPMC context save/restore.

I wrote this based on some early testing of the latest PM branch,
where I may of still had some bugs.  But I also have not seen
this in a while, so it may have been just a problem when I was
reworking/reordering the context save/restore code.

I decided to leave it in the 'known problems' list in case anyone else
has seen it and because I didn't go back and re-test all the boards
for this issue.

I don't see any issues on SDP or EVM anymore, have you tested the
current PM branch for this?

Kevin

RE: PM branch update: rebase to .31-rc, added omap_hwmod/omap_device

[Reddy, Teerth]

Kevin,

I did some testing with the current PM branch and don't see this issue on SDP. 

I could not find the patch which fixes this issue. Can you please point us to the patch which fixes this issue?

Regards,
Teerth

-----Original Message-----
From: linux-omap-owner@vger.kernel.org [mailto:linux-omap-owner@vger.kernel.org] On Behalf Of Kevin Hilman
Sent: Wednesday, August 12, 2009 8:28 PM
To: V, Hemanth
Cc: linux-omap@vger.kernel.org
Subject: Re: PM branch update: rebase to .31-rc, added omap_hwmod/omap_device

"Hemanth V" <hemanthv@ti.com> writes:

> ----- Original Message ----- 
> From: "Kevin Hilman" <khilman@deeprootsystems.com>
>> Known problems:
>
>> - network drivers and off-mode
>>  - various hangs when using off-while-idle and NFS-mounted rootfs
>>  - network drivers likely need some context save/restore support
>
> Kevin, was this known to work earlier. Could this be related to
> GPMC context save/restore.

I wrote this based on some early testing of the latest PM branch,
where I may of still had some bugs.  But I also have not seen
this in a while, so it may have been just a problem when I was
reworking/reordering the context save/restore code.

I decided to leave it in the 'known problems' list in case anyone else
has seen it and because I didn't go back and re-test all the boards
for this issue.

I don't see any issues on SDP or EVM anymore, have you tested the
current PM branch for this?

Kevin
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Re: PM branch update: rebase to .31-rc, added omap_hwmod/omap_device

[Kevin Hilman]

"Reddy, Teerth" <teerth@ti.com> writes:

> I did some testing with the current PM branch and don't see this issue on SDP. 

Thanks for testing.

> I could not find the patch which fixes this issue. Can you please
> point us to the patch which fixes this issue?

To be honest, I actually don't know which patch fixed the issue.  I saw the
problem during some early testing of the latest PM branch, and in the process
of restructuring the tree it went away.

More than likely, I had left out part of the series when reorganizing
that caused this temporary problem.

I think I'll remove it from the 'known problems' list as it appears to
have been operator error on my part.

Kevin


>
> -----Original Message-----
> From: linux-omap-owner@vger.kernel.org [mailto:linux-omap-owner@vger.kernel.org] On Behalf Of Kevin Hilman
> Sent: Wednesday, August 12, 2009 8:28 PM
> To: V, Hemanth
> Cc: linux-omap@vger.kernel.org
> Subject: Re: PM branch update: rebase to .31-rc, added omap_hwmod/omap_device
>
> "Hemanth V" <hemanthv@ti.com> writes:
>
>> ----- Original Message ----- 
>> From: "Kevin Hilman" <khilman@deeprootsystems.com>
>>> Known problems:
>>
>>> - network drivers and off-mode
>>>  - various hangs when using off-while-idle and NFS-mounted rootfs
>>>  - network drivers likely need some context save/restore support
>>
>> Kevin, was this known to work earlier. Could this be related to
>> GPMC context save/restore.
>
> I wrote this based on some early testing of the latest PM branch,
> where I may of still had some bugs.  But I also have not seen
> this in a while, so it may have been just a problem when I was
> reworking/reordering the context save/restore code.
>
> I decided to leave it in the 'known problems' list in case anyone else
> has seen it and because I didn't go back and re-test all the boards
> for this issue.
>
> I don't see any issues on SDP or EVM anymore, have you tested the
> current PM branch for this?
>
> Kevin
> --
> To unsubscribe from this list: send the line "unsubscribe linux-omap" in
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