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Groups > linux.kernel > #1210282
| From | Michael Ellerman <mpe@ellerman.id.au> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [22/27] macintosh: therm_windtunnel: Export OF module alias information |
| Date | 2015-08-20 10:40 +0200 |
| Message-ID | <pZty9-7Zj-13@gated-at.bofh.it> (permalink) |
| References | <pRYSx-3Fc-77@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Thu, 2015-30-07 at 16:18:47 UTC, Javier Martinez Canillas wrote: > The I2C core always reports the MODALIAS uevent as "i2c:<client name" > regardless if the driver was matched using the I2C id_table or the > of_match_table. So technically there's no need for a driver to export > the OF table since currently it's not used. > > In fact, the I2C device ID table is mandatory for I2C drivers since > a i2c_device_id is passed to the driver's probe function even if the > I2C core used the OF table to match the driver. > > And since the I2C core uses different tables, OF-only drivers needs to > have duplicated data that has to be kept in sync and also the dev node > compatible manufacturer prefix is stripped when reporting the MODALIAS. > > To avoid the above, the I2C core behavior may be changed in the future > to not require an I2C device table for OF-only drivers and report the > OF module alias. So, it's better to also export the OF table to prevent > breaking module autoloading if that happens. > > Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/a1a42b7920ba57f287d7 cheers -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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Re: [22/27] macintosh: therm_windtunnel: Export OF module alias information Michael Ellerman <mpe@ellerman.id.au> - 2015-08-20 10:40 +0200
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