linux-kernel - Re: [PATCH 2/2] regulator:TPS65910: VDD1/2 voltage selector count

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Message-ID: <20111104164009.GA753@opensource.wolfsonmicro.com>
Date:	Fri, 4 Nov 2011 16:40:09 +0000
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	"Mohammed, Afzal" <afzal@...com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Girdwood, Liam" <lrg@...com>,
	"sameo@...ux.intel.com" <sameo@...ux.intel.com>,
	"Nori, Sekhar" <nsekhar@...com>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	"gg@...mlogic.co.uk" <gg@...mlogic.co.uk>,
	Jorge Eduardo Candelaria <jedu@...mlogic.co.uk>
Subject: Re: [PATCH 2/2] regulator:TPS65910: VDD1/2 voltage selector count

On Fri, Nov 04, 2011 at 04:32:43PM +0000, Mohammed, Afzal wrote:
> On Fri, Nov 04, 2011 at 21:48:56, Mark Brown wrote:
> > So that definitely seems wrong then - n_voltages is supposed to be the
> > number of voltages that can be selected so if the regulator supports
> > _NUM_VOLTS steps then I'd expect to see that constant used directly.
> > Otherwise I'd suggest that the magic number needs a #define.

> A gain of 0x1, 0x2, 0x3 is possible for each of the voltage steps,
> so we have a total of _NUM_VOLTS * 3 steps (although some of them
> would be same values).

What do you mean when you say "gain"?
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