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From: Alex Courbot <acourbot@nvidia.com>
To: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Stephen Warren <swarren@nvidia.com>,
	Thierry Reding <thierry.reding@avionic-design.de>,
	Simon Glass <sjg@chromium.org>,
	Grant Likely <grant.likely@secretlab.ca>,
	Rob Herring <rob.herring@calxeda.com>,
	Mark Brown <broonie@opensource.wolfsonmicro.com>,
	Anton Vorontsov <cbou@mail.ru>,
	David Woodhouse <dwmw2@infradead.org>,
	Arnd Bergmann <arnd@arndb.de>,
	Leela Krishna Amudala <l.krishna@samsung.com>,
	"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-fbdev@vger.kernel.org" <linux-fbdev@vger.kernel.org>,
	"devicetree-discuss@lists.ozlabs.org" 
	<devicetree-discuss@lists.ozlabs.org>,
	"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
	"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>
Subject: Re: [PATCH v6 1/4] Runtime Interpreted Power Sequences
Date: Thu, 13 Sep 2012 16:08:50 +0900	[thread overview]
Message-ID: <3082244.Oec3ulPCgi@percival> (raw)
In-Reply-To: <1347519249.7471.42.camel@lappyti>

On Thursday 13 September 2012 14:54:09 Tomi Valkeinen wrote:
> * PGP Signed by an unknown key
> 
> On Thu, 2012-09-13 at 15:36 +0900, Alex Courbot wrote:
> 
> > On Thursday 13 September 2012 14:22:57 Tomi Valkeinen wrote:
> > 
> >  
> >  
> > > However, I fear these board specific things may be quite a bit
> > > anything,
> > > so it may well be pwm, gpios and regulators are not enough for them.
> > > For
> > > example, there could be an FPGA on the board which requires some
> > > configuration to accomplish the task at hand. It could be rather
> > > difficult to handle it with a generic power sequence.
> > 
> > 
> > Right. Note that this framework is supposed to be extended - I would like
> > to at least add regulator voltage setting, and maybe even support for
> > clocks and pinmux (but that might be out of place).
> 
> 
> Yes, that's one concern of mine... I already can imagine someone
> suggesting adding conditionals to the power sequence data.

I took care of that when naming the feature - it is not a "sequence" anymore 
if you have conditionals. :P

> Perhaps also
> direct memory read/writes so you can twiddle registers directly. And so
> on. Where's the limit what it should contain? Can we soon write full
> drivers with the DT data? =)

I shall be satisfied the day the kernel is released as one big DT node along 
with the 5KB interpreter that runs it.

Alex.


  parent reply	other threads:[~2012-09-13  7:06 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-12  9:57 [PATCH v6 0/4] Runtime Interpreted Power Sequences Alexandre Courbot
2012-09-12  9:57 ` [PATCH v6 1/4] " Alexandre Courbot
2012-09-12 22:07   ` Stephen Warren
2012-09-13  6:02     ` Alex Courbot
2012-09-13 15:44       ` Stephen Warren
2012-09-13  5:45   ` Tomi Valkeinen
2012-09-13  6:08     ` Alex Courbot
2012-09-13  6:22       ` Tomi Valkeinen
2012-09-13  6:36         ` Alex Courbot
2012-09-13  6:54           ` Tomi Valkeinen
2012-09-13  7:00             ` Sascha Hauer
2012-09-13  7:03               ` Tomi Valkeinen
2012-09-13  7:18                 ` Sascha Hauer
2012-09-13  7:27                   ` Tomi Valkeinen
2012-09-13  7:21                 ` Alex Courbot
2012-09-13  7:29                 ` Thierry Reding
2012-09-13  7:50                   ` Sascha Hauer
2012-09-13  8:21                     ` Alex Courbot
2012-09-13  8:26                       ` Thierry Reding
2012-09-13  8:00                   ` Tomi Valkeinen
2012-09-13  8:32                     ` Thierry Reding
2012-09-13  7:08             ` Alex Courbot [this message]
2012-09-13 15:37               ` Stephen Warren
2012-09-13  8:09   ` Mark Brown
2012-09-12  9:57 ` [PATCH v6 2/4] pwm_backlight: use power sequences Alexandre Courbot
2012-09-12 22:15   ` Stephen Warren
2012-09-12  9:57 ` [PATCH v6 3/4] tegra: dt: add label to tegra20's PWM Alexandre Courbot
2012-09-12  9:57 ` [PATCH v6 4/4] tegra: ventana: add pwm backlight DT nodes Alexandre Courbot
2012-09-12 21:23   ` Stephen Warren
2012-09-12 21:27 ` [PATCH v6 0/4] Runtime Interpreted Power Sequences Stephen Warren
2012-09-12 21:33   ` Anton Vorontsov
2012-09-13  5:53     ` Alex Courbot
2012-09-13  5:50 ` Tomi Valkeinen
2012-09-13  6:23   ` Alex Courbot
2012-09-13  6:25     ` Mark Brown
2012-09-13  6:42       ` Alex Courbot
2012-09-13  7:19         ` Mark Brown
2012-09-13  7:26           ` Alex Courbot
2012-09-13  7:29             ` Mark Brown
2012-09-13 15:24               ` Stephen Warren
2012-09-19  3:01                 ` Mark Brown
2012-10-03  8:24                 ` Alex Courbot
2012-10-03 15:30                   ` Stephen Warren
2012-09-13  6:42     ` Tomi Valkeinen
2012-09-13  6:48     ` Tomi Valkeinen

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