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

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Message-ID: <20120731142313.GU4468@opensource.wolfsonmicro.com>
Date:	Tue, 31 Jul 2012 15:23:14 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Alex Courbot <acourbot@...dia.com>
Cc:	Simon Glass <sjg@...omium.org>,
	Stephen Warren <swarren@...dia.com>,
	Thierry Reding <thierry.reding@...onic-design.de>,
	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 Tue, Jul 31, 2012 at 05:37:07PM +0900, Alex Courbot wrote:
> On 07/30/2012 08:00 PM, Simon Glass wrote:

> >For the delay, I think milliseconds is reasonable. I suppose there is
> >no reasonable need for microseconds?

> I don't see any need for microseconds myself - anybody sees use for
> finer-grained delays?

Bouncing reset lines, often the time required for reset is down in the
microseconds.
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