linux-kernel - Re: [PATCHv9 1/3] Runtime Interpreted Power Sequences

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Message-ID: <20121121151209.GA4048@avionic-0098.adnet.avionic-design.de>
Date:	Wed, 21 Nov 2012 16:12:09 +0100
From:	Thierry Reding <thierry.reding@...onic-design.de>
To:	Alexandre Courbot <gnurou@...il.com>
Cc:	Tomi Valkeinen <tomi.valkeinen@...com>,
	Tomi Valkeinen <tomba@....fi>,
	Grant Likely <grant.likely@...retlab.ca>,
	Anton Vorontsov <cbouatmailru@...il.com>,
	Stephen Warren <swarren@...dia.com>,
	Mark Zhang <markz@...dia.com>,
	Rob Herring <rob.herring@...xeda.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Arnd Bergmann <arnd@...db.de>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.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>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>
Subject: Re: [PATCHv9 1/3] Runtime Interpreted Power Sequences

On Thu, Nov 22, 2012 at 12:02:47AM +0900, Alexandre Courbot wrote:
> Mmmm so maybe I am misinterpreting things, but it looks like we
> have just buried the power sequences here, haven't we?

I don't think so. In fact I was just starting to think that maybe for
Tegra we could have a generic panel driver which used power sequences
to abstract away the pin differences for powering up the panel. Since
most likely that will be where the differences are there is a lot of
potential to factor things out into sequences.

Perhaps what we may want to postpone for now is the DT representation
since that's what Tomi and Grant seem to be mostly opposed to.

Thierry

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