linux-kernel - Re: [PATCH 1/2] regulator: DT: Add support to scale ramp delay based on platform behavior

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Message-ID: <20160315144822.GP2566@sirena.org.uk>
Date:	Tue, 15 Mar 2016 14:48:22 +0000
From:	Mark Brown <broonie@...nel.org>
To:	Laxman Dewangan <ldewangan@...dia.com>
Cc:	Bjorn Andersson <bjorn.andersson@...aro.org>, robh+dt@...nel.org,
	pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, lgirdwood@...il.com,
	bjorn.andersson@...ymobile.com, swarren@...dotorg.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	Gandhar Dighe <gdighe@...dia.com>,
	Stuart Yates <syates@...dia.com>
Subject: Re: [PATCH 1/2] regulator: DT: Add support to scale ramp delay based
 on platform behavior

On Tue, Mar 15, 2016 at 07:11:23PM +0530, Laxman Dewangan wrote:

> So here we will need two parameters:
> advertised-ramp-delay for PMIC configurations and
> ramp-delay which is measured one.

> Most of time, advertised-ramp-delay is same as ramp-delay and hence one
> value from DT will be sufficient.
> If there is difference then both value can be provided and
> advertised-ramp-delay  will be used for PMIC configuration and rest of
> calculation about delay will be from ramp-delay.

This sounds more like the difference between typical and maximum spec
values than anything else, we are looking for maxima in Linux.

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