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List: linux-kernel
Subject: Re: [PATCH] regulator: rk808: Fix min_uV for DCDC1 & DCDC2
From: Mark Brown <broonie () kernel ! org>
Date: 2014-09-30 22:52:41
Message-ID: 20140930225241.GO4273 () sirena ! org ! uk
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On Tue, Sep 30, 2014 at 06:57:51PM +0200, Heiko Stübner wrote:
> Am Dienstag, 30. September 2014, 09:43:47 schrieb Doug Anderson:
> > On Tue, Sep 30, 2014 at 2:44 AM, Chris Zhong <zyw@rock-chips.com> wrote:
> > > - REGULATOR_LINEAR_RANGE(700000, 0, 63, 12500),
> > > + REGULATOR_LINEAR_RANGE(712500, 0, 63, 12500),
> > I have no problem with this (and the current "dts" file I see don't go
> > this low anyway), but it doesn't match the datasheet I have right now
> > which says "0.700 V" is the min.
> Then it would be problem.
> The original statement above says, that a register value of "0" equals 700mV,
> so changing this in this way would mean everything runs 12.5mV above the
> target voltage.
> And I can confirm, that the current datasheet lists 700mV as equallying
> register value 0.
Has anyone got a voltmeter?
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