linux-kernel - Gethering power management/policy hw drivers under drivers/power/? (Re: [RFC][PATCH v3 1/3] runtime interpreted power sequences)

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Message-ID: <20120730024049.GA10442@lizard>
Date:	Sun, 29 Jul 2012 19:40:52 -0700
From:	Anton Vorontsov <cbouatmailru@...il.com>
To:	Alex Courbot <acourbot@...dia.com>, Jean Pihet <j-pihet@...com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	David Woodhouse <dwmw2@...radead.org>,
	Stephen Warren <swarren@...dia.com>,
	Thierry Reding <thierry.reding@...onic-design.de>,
	Simon Glass <sjg@...omium.org>,
	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Arnd Bergmann <arnd@...db.de>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-fbdev@...r.kernel.org" <linux-fbdev@...r.kernel.org>,
	"devicetree-discuss@...ts.ozlabs.org" 
	<devicetree-discuss@...ts.ozlabs.org>, Liam Girdwood <lrg@...com>,
	MyungJoo Ham <myungjoo.ham@...sung.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>, linux-pm@...r.kernel.org
Subject: Gethering power management/policy hw drivers under drivers/power/?
 (Re: [RFC][PATCH v3 1/3] runtime interpreted power sequences)

On Mon, Jul 30, 2012 at 10:51:42AM +0900, Alex Courbot wrote:
[...]
> On the other hand I have just noticed that the apparently unrelated
> Adaptive Voltage Scaling driver just appeared in drivers/power/avs.
> So if Anton and David are ok with this, maybe I could put the power
> sequences code in its own subdirectory within drivers/power.

Well, currently drivers/power/ is indeed just for power supply class
subsystem and drivers. But if the trend is to gather power management
("policy") stuff under one directory, i.e.

drivers/
  power/
    supplies/    <- former "power supply class and drivers"
    regulators/
    idle/
    cpuidle/
    cpufreq/
    devfreq/
    avs/
    ...

That would probably make sense, we could easily see the big picture.
But if we're not going to do this long-term, I would suggest to stick
to just a new directory under drivers (and move drivers/power/avs/ to
drivers/avs).

Cc'ing some more people...

Thanks,

p.s. Jean, why am I the last person who discovers drivers/power/avs/?
Would be nice to Cc me on such patches; by moving AVS under
drivers/power/ you effectively nominated me as its maintainer. :-)

-- 
Anton Vorontsov
Email: cbouatmailru@...il.com
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