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| Started by | Alexandre Belloni <alexandre.belloni@free-electrons.com> |
|---|---|
| First post | 2015-08-10 01:00 +0200 |
| Last post | 2015-08-10 01:00 +0200 |
| Articles | 1 — 1 participant |
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Re: [PATCH 21/27] rtc: Export OF module alias information in missing drivers Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2015-08-10 01:00 +0200
| From | Alexandre Belloni <alexandre.belloni@free-electrons.com> |
|---|---|
| Date | 2015-08-10 01:00 +0200 |
| Subject | Re: [PATCH 21/27] rtc: Export OF module alias information in missing drivers |
| Message-ID | <pVHJn-3eQ-5@gated-at.bofh.it> |
On 30/07/2015 at 18:18:46 +0200, 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, thanks. -- Alexandre Belloni, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com -- 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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