[rtc-linux] Re: [PATCH 21/27] rtc: Export OF module alias information in missing drivers

[Alexandre Belloni <alexandre.belloni@free-electrons.com>]

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

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