linux-kernel - Re: 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: <201207302259.39396.rjw@sisk.pl>
Date:	Mon, 30 Jul 2012 22:59:39 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Anton Vorontsov <cbouatmailru@...il.com>
Cc:	Alex Courbot <acourbot@...dia.com>, Jean Pihet <j-pihet@...com>,
	"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>,
	linux-pm@...r.kernel.org
Subject: Re: Gethering power management/policy hw drivers under drivers/power/? (Re: [RFC][PATCH v3 1/3] runtime interpreted power sequences)

On Monday, July 30, 2012, Anton Vorontsov wrote:
> 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,

Yes, we may do this eventually, but surely not right now.

Thanks,
Rafael
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