linux-kernel - Re: [PATCH] regulator: core: Keep boot

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Message-ID: <CABb+yY0ViFzxWOi7adaGNQPJvCy3e7MHd1+HGKkq8DZhtj9Anw@mail.gmail.com>
Date:	Wed, 25 Apr 2012 22:15:53 +0530
From:	Jassi Brar <jassisinghbrar@...il.com>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	Ulf Hansson <ulf.hansson@...ricsson.com>,
	Liam Girdwood <lrg@...mlogic.co.uk>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Mattias WALLIN <mattias.wallin@...ricsson.com>,
	Jonas ABERG <jonas.aberg@...ricsson.com>,
	Lee Jones <lee.jones@...aro.org>
Subject: Re: [PATCH] regulator: core: Keep boot_on regulators powered during init

On Wed, Apr 25, 2012 at 3:28 PM, Mark Brown
<broonie@...nsource.wolfsonmicro.com> wrote:
> On Wed, Apr 25, 2012 at 11:37:36AM +0200, Ulf Hansson wrote:
>
>> Maybe you have convinced me now :-) I will therefore start thinking
>> of a patch on the mmc framework instead. I will include you if/when
>> I send out the patch to the mmc-list, just for reference if that is
>> ok with you?
>
> Yes, please - there've been some issues with the way regulators are used
> in MMC for a while.  There's definitely some stuff that needs to be
> worked through here.
>
> I've also added Jassi who it just occurred to me was talking about some
> vaugley similar stuff relatively recently (though I'm not sure it was
> MMC).  Jassi, the issue here is working out if an MMC device is powered
> at boot so we can skip probing then shutting it down cleanly.
>
Mark, thanks for notifying me.
But my problem was purely related to dummy - I wanted to determine if
a supply is physically absent when I have support for dummy regulator enabled.
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