Re: spi: OF module autoloading is still broken

From	Mark Brown <broonie@kernel.org>
Newsgroups	linux.kernel
Subject	Re: spi: OF module autoloading is still broken
Date	2015-11-17 14:20 +0100
Message-ID	<qvOkW-5vY-13@gated-at.bofh.it> (permalink)
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On Tue, Nov 17, 2015 at 10:14:27AM -0300, Javier Martinez Canillas wrote:
> On 11/16/2015 06:51 PM, Brian Norris wrote:

> > Lest someone else wonder whether this is theoretical or not, I'll save
> > them the work in pointing at an example: "st,st33zp24". See:

> > Documentation/devicetree/bindings/security/tpm/st33zp24-*.txt

> > and the code is in drivers/char/tpm/st33zp24/, sharing the same core
> > library, suggesting that the devices really are the same except simply
> > the bus.

> Thanks for pointing out that example although for that specific case,
> the drivers' compatible are "st,st33zp24-i2c" and "st,st33zp24-spi" to
> avoid the issue explained before.

Eew, that's gross.  

> I still didn't find an example where the same compatible string is
> used for different drivers (i.e: "st,st33zp24" or "google,cros-ec")
> but the fact that is possible for legacy and not for OF is worrisome.

There's a bunch of audio CODEC and PMIC drivers, arizona is the first
example that springs to mind but it's very common to have mixed signal
devices devices which can run in both I2C and SPI modes.

Thread

Re: spi: OF module autoloading is still broken Javier Martinez Canillas <javier@osg.samsung.com> - 2015-11-16 18:20 +0100
  Re: spi: OF module autoloading is still broken Mark Brown <broonie@kernel.org> - 2015-11-16 19:00 +0100
    Re: spi: OF module autoloading is still broken Javier Martinez Canillas <javier@osg.samsung.com> - 2015-11-16 19:00 +0100
  Re: spi: OF module autoloading is still broken Brian Norris <computersforpeace@gmail.com> - 2015-11-16 20:30 +0100
    Re: spi: OF module autoloading is still broken Javier Martinez Canillas <javier@osg.samsung.com> - 2015-11-16 21:10 +0100
      Re: spi: OF module autoloading is still broken Brian Norris <computersforpeace@gmail.com> - 2015-11-16 21:50 +0100
        Re: spi: OF module autoloading is still broken Javier Martinez Canillas <javier@osg.samsung.com> - 2015-11-16 22:40 +0100
          Re: spi: OF module autoloading is still broken Brian Norris <computersforpeace@gmail.com> - 2015-11-16 23:00 +0100
            Re: spi: OF module autoloading is still broken Mark Brown <broonie@kernel.org> - 2015-11-17 14:20 +0100
              Re: spi: OF module autoloading is still broken Javier Martinez Canillas <javier@osg.samsung.com> - 2015-11-17 14:40 +0100
            Re: spi: OF module autoloading is still broken Javier Martinez Canillas <javier@osg.samsung.com> - 2015-11-17 14:20 +0100
          Re: spi: OF module autoloading is still broken Javier Martinez Canillas <javier@osg.samsung.com> - 2015-11-18 21:10 +0100
            Re: spi: OF module autoloading is still broken Javier Martinez Canillas <javier@osg.samsung.com> - 2015-11-19 13:50 +0100
      Re: spi: OF module autoloading is still broken Mark Brown <broonie@kernel.org> - 2015-11-17 14:40 +0100
        Re: spi: OF module autoloading is still broken Javier Martinez Canillas <javier@osg.samsung.com> - 2015-11-17 14:40 +0100

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