Re: [PATCH 1/2] OMAP3 PM: move omap3 sleep to ddr

[Nishanth Menon <nm@ti.com>]

Kevin Hilman had written, on 11/22/2010 12:23 PM, the following:
> Nishanth Menon <nm@ti.com> writes:
> 
>> Peter 'p2' De Schrijver had written, on 11/22/2010 10:22 AM, the following:
>> [...]
>>>>> The root cause for the DLL not locking has been found though and a
>>>>> workaround implemented. So it should work now :) 
>>>> Is the workaround for this reflected in Nishanth's series?
>>> No. It seems not. The workaround needs VDD2 voltage scaling which seems
>>> to be missing now from l-o ?
>> yep, that is correct - we dont have dvfs/OPP/voltage scaling in
>> kernel.org as of today - until we have those, it might not be possible
>> to push the "real workaround". the mentioned patch is, as documented,
>> support for the voltage workaround.
> 
> It would be worth noting other known issues that are not worked around
> in this series due to external dependencies.
I believe I have done that
http://marc.info/?l=linux-omap&m=129013172525234&w=2
"IMPORTANT: this is not a complete workaround implementation as recommended
by the silicon errata. this is a support logic for detecting lockups and
attempting to recover where possible and is known to provide stability
in multiple platforms.
"

> 
> Also, is the current SR/voltage series as proposed capable of handling
> the workaround for this fix?
I believe a new series is due sometime- we should see if the required 
changes are part of that series.

Regards,
Nishanth Menon