Re: [PATCHv4 4/8] ARM: OMAP3: add manual control for mpu / core pwrdm usecounting

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, 2012-07-27 at 12:36 -0700, Kevin Hilman wrote:
> Tero Kristo <t-kristo@xxxxxx> writes:
> 
> > mpu / core powerdomain usecounts are now statically increased
> > by 1 during MPU activity. This allows the domains to reflect
> > actual usage, and will allow the usecount to reach 0 just before
> > all CPUs are ready to idle. Proper powerdomain usecounts are
> > propageted to voltagedomain level also, and will allow vc
> > callbacks to be triggered at right point of time.
> >
> > Signed-off-by: Tero Kristo <t-kristo@xxxxxx>
> > Cc: Paul Walmsley <paul@xxxxxxxxx>
> > Cc: Kevin Hilman <khilman@xxxxxx>
> 
> IMO, the idea is fine, but I'm not crazy about the implementation in
> powerdomain.c, which is meant for pwrdm generic code.   In particular,
> I'm not crazy about the pwrdm lookups in powerdomain.c.
> 
> Since pm<soc>.c already has references to mpu_pwrdm and core_pwrdm, why
> not just add the pwrdm_clkdm_enable/disable calls directly in pm<soc>.c

I think this was how the patch was in some earlier rev but I thought I'd
try to be more clever with this. :) I can revert the implementation back
to this.

> Also, the changelog should be a bit more specific about why CORE
> powerdomain is also handled here when most of the code only talks about
> the CPU.

Yea, I'll add some beef to this also.

-Tero

--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Arm (vger)]     [ARM Kernel]     [ARM MSM]     [Linux Tegra]     [Linux WPAN Networking]     [Linux Wireless Networking]     [Maemo Users]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Trails]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux