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Message-ID: <20130108071234.GB2171@avionic-0098.adnet.avionic-design.de>
Date: Tue, 8 Jan 2013 08:12:34 +0100
From: Thierry Reding <thierry.reding@...onic-design.de>
To: Grant Likely <grant.likely@...retlab.ca>
Cc: Stephen Warren <swarren@...dotorg.org>,
Mark Brown <broonie@...nsource.wolfsonmicro.com>,
"spi-devel-general@...ts.sourceforge.net"
<spi-devel-general@...ts.sourceforge.net>,
Laxman Dewangan <ldewangan@...dia.com>,
Stephen Warren <swarren@...dia.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Rob Herring <rob.herring@...xeda.com>
Subject: Re: [PATCH] spi: tegra: sequence compatible strings as per preference
On Wed, Dec 19, 2012 at 05:00:09PM +0000, Grant Likely wrote:
> On Sat, 10 Nov 2012 18:07:42 +0100, Thierry Reding <thierry.reding@...onic-design.de> wrote:
> > On Fri, Nov 09, 2012 at 10:28:38AM -0700, Stephen Warren wrote:
> > > On 11/09/2012 10:10 AM, Mark Brown wrote:
> > > > On Fri, Nov 09, 2012 at 10:04:56AM -0700, Stephen Warren wrote:
> > > >
> > > >> However just FYI, it should not be necessary for correctness; The
> > > >> DT matching order is supposed to be driven purely by the order of
> > > >> the compatible values in the DT now, and not affected by the
> > > >> order of values in the table. (This wasn't always the case, but
> > > >> was a bug that was fixed IIRC by Thierry Reding).
> > > >
> > > > I guess the driver is being used backported in older kernels which
> > > > don't have that fix?
> > >
> > > That sounds likely. Laxman, it'd be a good idea to track down the fix
> > > to the DT matching code and backport it, so that hard-to debug issues
> > > aren't caused by the lack of that patch!
> >
> > Unfortunately the patch that was supposed to fixed this caused a
> > regression and was therefore reverted. Rob (Cc'ed) said there was a
> > patch to fix it properly and was supposed to go into 3.6 but it seems
> > that never happened. Rob, what's the status on this?
> >
> > The revert is here: bc51b0c22cebf5c311a6f1895fcca9f78efd0478
>
> Rob, ping on this. I think we talked about it on IRC, but I cannot
> remember what was said.... I must be getting old.
Any news on this one?
Thierry
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