linux-kernel - Re: [PATCH v2 1/2] mmc: dw_mmc: Handle late vmmc regulators with EPROBE

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Message-ID: <87vc4zo9dc.fsf@octavius.laptop.org>
Date:	Thu, 27 Jun 2013 11:34:39 -0400
From:	Chris Ball <cjb@...top.org>
To:	Doug Anderson <dianders@...omium.org>
Cc:	Olof Johansson <olof@...om.net>,
	Andrew Bresticker <abrestic@...omium.org>,
	Alim Akhtar <alim.akhtar@...sung.com>,
	Abhilash Kesavan <a.kesavan@...sung.com>,
	Tomasz Figa <tomasz.figa@...il.com>,
	Jaehoon Chung <jh80.chung@...sung.com>,
	Seungwon Jeon <tgih.jun@...sung.com>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Rob Landley <rob@...dley.net>,
	Will Newton <will.newton@...il.com>,
	devicetree-discuss@...ts.ozlabs.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-mmc@...r.kernel.org
Subject: Re: [PATCH v2 1/2] mmc: dw_mmc: Handle late vmmc regulators with EPROBE_DEFER

Hi Doug,

On Fri, Jun 07 2013, Doug Anderson wrote:
> It is possible to specify a regulator that should be turned on when
> dw_mmc is probed.  At the moment dw_mmc will fail to use the regulator
> properly if the regulator probes after dw_mmc.  Fix this problem by
> honoring EPROBE_DEFER.
>
> At the same time move the regulator code out of the slot init code.
> We only specify one regulator for the whole device and other parts of
> the code (like suspend/resume) assume that the regulator has only been
> enabled once.
>
> Signed-off-by: Doug Anderson <dianders@...omium.org>
> ---
> Changes in v2:
> - Avoid hackery to detect regulators that will never show up.
> - Move regulator out of slot init--it doesn't belong there.

Thanks, pushed to mmc-next for 3.11.

- Chris.
-- 
Chris Ball   <cjb@...top.org>   <http://printf.net/>
One Laptop Per Child
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