Re: [PATCH] spi: Force the registration of the spidev devices

Maxime Ripard
2014-05-08T02:25:16Z

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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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