linux-kernel - Re: [RFC] regulator: anatop-regulator: Also provide a delay when voltage decreases

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Message-ID: <20131221142201.GE30815@sirena.org.uk>
Date:	Sat, 21 Dec 2013 14:22:01 +0000
From:	Mark Brown <broonie@...nel.org>
To:	Fabio Estevam <festevam@...il.com>
Cc:	shawn.guo@...aro.org, b20788@...escale.com,
	linux-kernel@...r.kernel.org,
	Fabio Estevam <fabio.estevam@...escale.com>
Subject: Re: [RFC] regulator: anatop-regulator: Also provide a delay when
 voltage decreases

On Fri, Dec 20, 2013 at 12:48:22PM -0200, Fabio Estevam wrote:

> I could not find in the reference manual anywhere that says that the delay
> should de done only when the voltage increases.

The reason this is normally not done is that generally consumers don't
care too much if the supply is too high but will fail if they get an
undervoltage supply so there's not such a great need to wait.

It can also be hard to tell how quickly the voltage will fall.
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