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From: David Brownell <david-b@pacbell.net>
To: Kyungmin Park <kyungmin.park@samsung.com>,
	Adrian Hunter <ext-adrian.hunter@nokia.com>
Cc: "Kim Kyuwon" <chammoru@gmail.com>,
	"linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"drzeus-mmc@drzeus.cx" <drzeus-mmc@drzeus.cx>,
	김규원 <q1.kim@samsung.com>
Subject: Re: [PATCH] OMAP: HSMMC: Initialize hsmmc controller registers when  resuming
Date: Mon, 23 Feb 2009 10:30:24 -0800	[thread overview]
Message-ID: <200902231030.25137.david-b@pacbell.net> (raw)
In-Reply-To: <9c9fda240902230426s2003d208xebeb6630c61b3bec@mail.gmail.com>

On Monday 23 February 2009, Kyungmin Park wrote:
> > Although I have not tested it, I very much doubt
> > dual-voltage cards work.  That is because VMMC1_185V
> > is zero, which has the side-effect of turning the
> > regulator off (see arch/arm/mach-omap2/mmc-twl4030.c)

Right, looks like a longstanding bug in that glue.
So IMO, no rush to fix for 2.6.29-rc ...


> It's also to difficult to test in our H/W since it's configured only
> support 3.0V.

Easily tested with a Beagle or SDP though, if you
have a 1.8V or dual-voltage card (maybe RS-MMC, as
for an N770 tablet).


> How about to separate it two phases, first fix the mmc suspend/resume
> works again, and then verify dual voltage if there are these hardware

Well, two patches for sure; I don't know that the order
will matter.  I just sent a patch fixing that code in
the current OMAP git tree, which has some fixes that are
scheduled to merge for 2.6.30-rc.

- Dave

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  parent reply	other threads:[~2009-02-23 18:30 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-20 12:00 [PATCH] OMAP: HSMMC: Initialize hsmmc controller registers when resuming Kim Kyuwon
2009-02-20 21:11 ` David Brownell
2009-02-23  5:41   ` Kim Kyuwon
2009-02-23  8:04     ` Adrian Hunter
2009-02-23 12:26       ` Kyungmin Park
2009-02-23 13:47         ` Adrian Hunter
2009-02-23 18:23           ` David Brownell
2009-02-24 13:01             ` Adrian Hunter
2009-02-24 22:10               ` David Brownell
2009-02-27 22:08                 ` Tony Lindgren
2009-03-02 12:27                   ` Adrian Hunter
2009-03-02 16:44                     ` Tony Lindgren
2009-03-02 21:23                       ` Pierre Ossman
2009-02-24 22:12               ` David Brownell
2009-02-23 18:30         ` David Brownell [this message]
2009-03-11  3:33       ` David Brownell
2009-03-11  6:50         ` Pierre Ossman

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