linux-kernel - Re: [PATCH v6 0/4] Runtime Interpreted Power Sequences

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Message-ID: <1378218.yLeQheNFT0@percival>
Date:	Thu, 13 Sep 2012 16:26:34 +0900
From:	Alex Courbot <acourbot@...dia.com>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
CC:	Tomi Valkeinen <tomi.valkeinen@...com>,
	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>,
	Anton Vorontsov <cbou@...l.ru>,
	David Woodhouse <dwmw2@...radead.org>,
	Arnd Bergmann <arnd@...db.de>,
	Leela Krishna Amudala <l.krishna@...sung.com>,
	"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>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>
Subject: Re: [PATCH v6 0/4] Runtime Interpreted Power Sequences

On Thursday 13 September 2012 15:19:30 Mark Brown wrote:
> On Thu, Sep 13, 2012 at 03:42:11PM +0900, Alex Courbot wrote:
> > On Thursday 13 September 2012 14:25:53 Mark Brown wrote:
> > > It would be sensible to make sure that the framework is done in such a
> > > way that drivers can use it - there will be drivers (perhaps not display
> > > ones) that have a known power sequence and which could benefit from the
> > > ability to use library code to implement it based on the user simply
> > > supplying named resources.
> > 
> > Not sure I understand what you mean, but things should be working this way
> > already - regulators and PWMs are acquired by name using the standard
> > regulator_get() and pwm_get() functions. GPIOs do not, AFAIK, have a way
> > to be referenced by name so their number is used instead.
> 
> Right, but the sequencing for enabling them is currently open coded in
> each driver.

Mmm then I'm afraid I don't see what you wanted to say initially - could you 
elaborate?

Alex.

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