linux-kernel - Re: [RFC][PATCH v3 1/3] runtime interpreted power sequences

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Message-ID: <20120801140121.GB19957@avionic-0098.adnet.avionic-design.de>
Date:	Wed, 1 Aug 2012 16:01:21 +0200
From:	Thierry Reding <thierry.reding@...onic-design.de>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	Alex Courbot <acourbot@...dia.com>,
	Stephen Warren <swarren@...dotorg.org>,
	Stephen Warren <swarren@...dia.com>,
	Simon Glass <sjg@...omium.org>,
	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	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>
Subject: Re: [RFC][PATCH v3 1/3] runtime interpreted power sequences

On Wed, Aug 01, 2012 at 02:55:31PM +0100, Mark Brown wrote:
> On Wed, Aug 01, 2012 at 03:38:14PM +0200, Thierry Reding wrote:
> > On Wed, Aug 01, 2012 at 02:26:51PM +0100, Mark Brown wrote:
> 
> > > This is why __devinit data will only be discarded when this is not
> > > possible.
> 
> > That's exactly my point. But I seem to have miserably failed to get that
> > across. =)
> 
> We must be talking at cross purposes then.  What I'm saying is that the
> framework shouldn't rely on platform data and should assume that the
> kernel might be configured so it can be discarded (by copying most
> likely).

Yes. I think this should be solved by the power_seq_build() function
which uses the platform data description of the sequence and builds it
into something for internal use that doesn't rely on anything in the
platform data.

Thierry

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