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From: Maxime Ripard <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
To: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Alexandre Belloni
	<alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
Subject: Re: [PATCH] spi: Force the registration of the spidev devices
Date: Wed, 7 May 2014 21:22:33 -0500	[thread overview]
Message-ID: <20140508022233.GF7047@lukather> (raw)
In-Reply-To: <20140505191723.GK22111-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>

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On Mon, May 05, 2014 at 12:17:23PM -0700, Mark Brown wrote:
> On Sun, May 04, 2014 at 11:21:47PM -0500, Maxime Ripard wrote:
> > On Fri, May 02, 2014 at 10:40:48AM -0700, Mark Brown wrote:
> > > > i2c-dev works great in these cases, because you always have access to
> > > > all the bus, and all the devices, except if the device is already used
> > > > by someone. The patch I suggested is an attempt to mimic this.
> 
> > > It seems better to implement something like this at the device model
> > > level, provide a way to have a default UIO driver for anything on a
> > > given bus.  I don't see anything bus specific apart from saying what the
> > > default driver to use is and it avoids the icky code fiddling about with
> > > what devices are bound and the races that might be involved duplicated
> > > in individual buses.
> 
> > Hmmm, yes, that's probably a great long-term way of dealing with this,
> > but I don't see it happening soon.
> 
> Isn't the code in the patch that started this thread roughly what's
> needed, just done in a SPI specific way instead of a generic way?

Hmmm, I think I get your point now. Yes, we could do it. Let me find
some time to actually write something :)

Thanks,
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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  parent reply	other threads:[~2014-05-08  2:22 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-28 17:22 [PATCH] spi: Force the registration of the spidev devices Maxime Ripard
     [not found] ` <1398705774-12361-1-git-send-email-maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-04-29 18:37   ` Mark Brown
     [not found]     ` <20140429183758.GH15125-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-04-29 21:31       ` Martin Sperl
     [not found]         ` <24BF05CB-35FF-42E8-BE5C-A5E4E3D0C52A-TqfNSX0MhmxHKSADF0wUEw@public.gmane.org>
2014-04-30 18:14           ` Maxime Ripard
2014-04-30 20:00             ` Martin Sperl
     [not found]               ` <DA3907EB-0C1B-42FB-B288-9E33F6E24E3E-TqfNSX0MhmxHKSADF0wUEw@public.gmane.org>
2014-04-30 22:19                 ` Maxime Ripard
2014-05-01  1:21                 ` Mark Brown
2014-04-30 18:06       ` Maxime Ripard
2014-05-01  1:18         ` Mark Brown
     [not found]           ` <20140501011811.GF3245-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-05-01 22:36             ` Maxime Ripard
2014-05-01 23:28               ` Geert Uytterhoeven
     [not found]                 ` <CAMuHMdUWa1_n94sDvv=L_goc+SOnD9CAKi5DzifrY7GWYRdQmw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-05-02 16:55                   ` Mark Brown
2014-05-05  4:17                 ` Maxime Ripard
2014-05-05  7:10                   ` Geert Uytterhoeven
     [not found]                     ` <CAMuHMdWZ1rvC+tkT=CbfMwZtppyJ_KpzT7JrLd5k5P2oxzA+8g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-05-05 13:57                       ` Alexandre Belloni
     [not found]                         ` <20140505135701.GA21940-m++hUPXGwpdeoWH0uzbU5w@public.gmane.org>
2014-05-05 14:22                           ` Geert Uytterhoeven
2014-05-05 19:16                     ` Mark Brown
2014-05-02 17:40               ` Mark Brown
2014-05-05  4:21                 ` Maxime Ripard
2014-05-05 19:17                   ` Mark Brown
     [not found]                     ` <20140505191723.GK22111-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-05-08  2:22                       ` Maxime Ripard [this message]
  -- strict thread matches above, loose matches on Subject: below --
2015-05-12 20:33 Maxime Ripard
     [not found] ` <1431462804-30467-1-git-send-email-maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2015-05-13 11:26   ` Mark Brown
     [not found]     ` <20150513112604.GI3066-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-05-13 12:35       ` Michal Suchanek
2015-05-13 12:51       ` Maxime Ripard
2015-05-13 14:36         ` Mark Brown
     [not found]           ` <20150513143610.GT2761-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-05-13 15:31             ` Michal Suchanek
     [not found]               ` <CAOMqctTd7xG6mwX9AojTH4uaGDY06xOgDFUP437VDiE0rp0sXA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-05-13 17:43                 ` Mark Brown
2015-05-13 19:09           ` Maxime Ripard
2015-05-13 19:10         ` Geert Uytterhoeven
     [not found]           ` <CAMuHMdWJ730G_a6=vQgs4gV837am5KKd7zEhU2FaHw2cpv=aRA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-05-13 19:41             ` Maxime Ripard
2015-05-13 15:37       ` Greg Kroah-Hartman
     [not found]         ` <20150513153740.GC11677-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2015-05-13 15:52           ` Michal Suchanek
2015-05-13 17:13           ` Mark Brown
     [not found]             ` <20150513171300.GD2761-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-05-13 17:20               ` Greg Kroah-Hartman
     [not found]                 ` <20150513172028.GA18303-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2015-05-13 17:39                   ` Mark Brown
     [not found]                     ` <20150513173922.GF2761-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-05-13 18:16                       ` Greg Kroah-Hartman
2015-05-13 18:32                         ` Mark Brown
     [not found]                           ` <20150513183211.GK2761-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-05-13 18:36                             ` Greg Kroah-Hartman
     [not found]                               ` <20150513183653.GA879-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2015-05-13 18:51                                 ` Mark Brown
     [not found]                                   ` <20150513185149.GL2761-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-05-13 19:17                                     ` Maxime Ripard
2015-05-13 17:50           ` Maxime Ripard
2015-05-13 18:12             ` Mark Brown
2015-05-13 18:17             ` Greg Kroah-Hartman
     [not found]               ` <20150513181736.GC16811-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2015-05-13 19:23                 ` Geert Uytterhoeven
2015-05-13 19:26                 ` Maxime Ripard
2015-05-13 22:33                   ` Greg Kroah-Hartman
2015-05-15  8:09                     ` Maxime Ripard
     [not found]                     ` <20150513223331.GA26748-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2015-05-14 14:34                       ` Mark Brown
2015-07-15  6:27                       ` Lucas De Marchi

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