Re: [PATCH 0/0] Refreshed omap2 clock and powerdomain patches

eric miao
2008-07-24T02:41:18Z

On Wed, Jul 16, 2008 at 11:22 PM, Tony Lindgren <tony@atomide.com> wrote:
> * Russell King - ARM Linux <linux@arm.linux.org.uk> [080716 12:41]:
>> On Wed, Jul 16, 2008 at 11:53:20AM +0300, Tony Lindgren wrote:
>> > This series contains the refreshed omap2 clock and powerdomain
>> > patches as some of the patches in this series have been already
>> > integrated.
>>
>> I think the clock and power domain patches need much more review.
>> They're introducing a couple of new management subsystems which may
>> be of interest to other SoCs, maybe even different architectures.
>
> Sure the power domain and clock domain code can be worked into
> something more generic once we've figured out what can be shared.
>

This is, unfortunately, not so useful to PXA likely. Although there's
power domain and clock domain concepts in PXA silicon, the power
states of those domains are controlled in a integrated way along with
the power state of the whole chip, perhaps to reduce the software
complexity in software domain management, and mimics the ACPI
concepts to some extent.

I don't want to give an early conclusion, but I may look more into the
usage of these power domains and clock domains ( it's not merely
to setup the PRCM registers correctly, no? )

> I've posted these patches to LKML and linux-pm for other arch people to
> look at too.
>
> Regards,
>
> Tony
>
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--
Cheers
- eric