Re: [PATCH] mmc: omap_hsmmc: set dto to 14 for all devices

[Tony Lindgren <tony@atomide.com>]

* Chris Ball <cjb@laptop.org> [120315 20:26]:
> Hi Paul,
> 
> On Mon, Mar 12 2012, Paul Walmsley wrote:
> > I don't think this is the right fix.  Steve Sakoman and I discussed this a 
> > few months ago -- we did some debugging and Steve observed the timeouts on 
> > multiple block writes (0x19):
> > [...]
> > So perhaps something like the following patch instead?  Unfortunately, I 
> > don't have one of these crappy SD cards as far as I know, so I can't 
> > really test it.
> >
> >
> > - Paul
> >
> > From: Paul Walmsley <paul@pwsan.com>
> > Date: Mon, 12 Mar 2012 04:46:29 -0600
> > Subject: [PATCH] mmc: use really long write timeout to deal with crappy cards
> >
> > Several people have noticed that crappy SD cards take much longer to
> > complete multiple block writes than the 300ms that Linux specifies.
> > Try to work around this by using a three second write timeout instead.
> >
> > <insert Chase's patch description here>
> >
> > Not-yet-signed-off-by: Paul Walmsley <paul@pwsan.com>
> 
> Sounds like a good idea -- want to send a signed-off patch for this?

This seems like the right fix to me too. Works on my pandaboard es and
some random card that produces I/O errors without this.

Tested-by: Tony Lindgren <tony@atomide.com>