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

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Message-ID: <20120913062552.GB17869@opensource.wolfsonmicro.com>
Date:	Thu, 13 Sep 2012 14:25:53 +0800
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Alex Courbot <acourbot@...dia.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 Thu, Sep 13, 2012 at 03:23:06PM +0900, Alex Courbot wrote:

> I understand the logic behind handling powering sequences in the device 
> driver, but as we discussed for some classes of devices this might just not 
> scale. I don't know how many different panels (each with different powering 

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.
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