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Date: Wed, 25 Apr 2012 22:15:53 +0530
Message-ID: <CABb+yY0ViFzxWOi7adaGNQPJvCy3e7MHd1+HGKkq8DZhtj9Anw@mail.gmail.com>
Subject: Re: [PATCH] regulator: core: Keep boot_on regulators powered during init
From: Jassi Brar <jassisinghbrar@gmail.com>
To: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Ulf Hansson <ulf.hansson@stericsson.com>,
        Liam Girdwood <lrg@slimlogic.co.uk>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Mattias WALLIN <mattias.wallin@stericsson.com>,
        Jonas ABERG <jonas.aberg@stericsson.com>,
        Lee Jones <lee.jones@linaro.org>
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On Wed, Apr 25, 2012 at 3:28 PM, Mark Brown
<broonie@opensource.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.