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From: Mark Brown <broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
To: Laxman Dewangan <ldewangan-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Cc: Laxman Dewangan
	<ldewangan.com-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>,
	"lrg-kDsPt+C1G03kYMGBc/C6ZA@public.gmane.org"
	<lrg-kDsPt+C1G03kYMGBc/C6ZA@public.gmane.org>,
	"linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH V1] TPS62360: Add tps62360 regulator driver
Date: Sun, 8 Jan 2012 23:39:00 -0800	[thread overview]
Message-ID: <20120109073859.GG22134@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <96C9D994977DD0439FB6D3FE3B13DD907DBDABA9B6-kdsAE/FnitNDw2glCA4ptUEOCMrvLtNR@public.gmane.org>

On Mon, Jan 09, 2012 at 01:03:06PM +0530, Laxman Dewangan wrote:
> > On Monday, January 09, 2012 12:41 PM, Mark Brown wrote

> > Why?  I'm not sure I understand this.  You're asking the regulator to
> > output ranges not voltages and you're setting multiple overlapping
> > ranges for each VSEL.

> If I fix the voltage with each VSEL then only 4 voltages will be
> possible but I want to have more than 4 different output.
> How do I achieve this?

The driver can decide what voltages to set - like I said in a previous
mail it could use something like LRU to decide which slot to use, or
perhaps be clever with the upper end of the range it was given.

> > What I'd expect to see is nothing but the GPIOs and their default state
> > (since sadly we can't read back from output GPIOs with gpiolib) being
> > specified.

> I did not understand it correctly. Can you please elaborate how can we
> pass the voltage with corresponding vsel?

For bootstrapping you can just read the values back.

  parent reply	other threads:[~2012-01-09  7:39 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-04  9:20 [PATCH V1] TPS62360: Add tps62360 regulator driver Laxman Dewangan
2012-01-05  6:29 ` Mark Brown
2012-01-05 13:48   ` Laxman Dewangan
2012-01-06 17:44     ` Mark Brown
     [not found]     ` <96C9D994977DD0439FB6D3FE3B13DD907DBD3A9E9B-kdsAE/FnitNDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-01-06 18:57       ` Mark Brown
     [not found]         ` <20120106185755.GC2893-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2012-01-07 17:46           ` Laxman Dewangan
     [not found]             ` <96C9D994977DD0439FB6D3FE3B13DD907DBD3AA0DE-kdsAE/FnitNDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-01-07 19:10               ` Mark Brown
2012-01-08  7:42                 ` Laxman Dewangan
     [not found]                   ` <96C9D994977DD0439FB6D3FE3B13DD907DBD3AA0E4-kdsAE/FnitNDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-01-08 16:58                     ` Mark Brown
     [not found]                       ` <20120108165819.GB29065-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2012-01-09  7:04                         ` Laxman Dewangan
2012-01-09  7:11                           ` Mark Brown
     [not found]                             ` <20120109071128.GA22134-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2012-01-09  7:33                               ` Laxman Dewangan
     [not found]                                 ` <96C9D994977DD0439FB6D3FE3B13DD907DBDABA9B6-kdsAE/FnitNDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-01-09  7:39                                   ` Mark Brown [this message]
     [not found]                                     ` <20120109073859.GG22134-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2012-01-09  8:47                                       ` Laxman Dewangan
2012-01-09  8:48                                         ` Mark Brown
2012-01-09  9:19                                           ` Laxman Dewangan

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