[PATCH 1/4] OMAP: introduce OPP layer for device-specific OPPs

Nishanth Menon nm at ti.com
Thu Sep 16 08:40:42 EDT 2010


Linus Walleij had written, on 09/16/2010 07:19 AM, the following:
> 2010/9/15 Kevin Hilman <khilman at deeprootsystems.com>:
> 
>> OMAP SOCs have a standard set of tuples consisting of frequency and
>> voltage pairs that the device will support per voltage domain.  These
>> are called Operating Performance Points or OPPs.
>> (...)
>> This introduces a common handling OPP mechanism accross all OMAPs.
>> As a start this is used for OMAP3.
> 
> OPPs are a generic concept, it's in silicon construction textbooks and all.
> Should this code not be made generic instead? You wouldn't make
> regulators or even DMA platform-specific these days, so why should
> OPPs be?
As far as I see this patch :
hwmod[1] which is omap specific which inturn depends on omap_device. - 
this impacts opp_add function in the opp layer.

[1] http://marc.info/?l=linux-omap&m=128226580816341&w=2
-- 
Regards,
Nishanth Menon



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