[i2c] [patch 2.6.21-rc3-git +i2c 0/5] "new style" I2C driver support, take ~7

[David Brownell]

OK, this version takes into account all Jean's recent feedback.
The patches are split up as before, and assume the class attribute
cleanup I sent earlier:

 - Driver probe() needs to work, along with hotplug and coldplug.

 - Likewise remove() must work.  As with probe(), nothing will
   yet invoke these new methods.

 - Did someone just say "Documentation/i2c"?

 - Board-specific arch_initcall() code can declare i2c_board_info
   for each device (including irq and platform_data); and include
   an i2c_new_device() call to start triggering probe() etc.

 - Add i2c_register_adapter() to claim a specific bus id and kick
   in automatic creation of nodes for pre-declared devices; that
   will be the main way for e.g. embedded boards to configure all
   their I2C devices.

I'm also going to follow this with four unrelated patches:

 - Update i2c core EXPORT_SYMBOL declarations to match CodingStyle

 - rtc-ds1307 updates to facilitate driver model changes (assumes
   the to_i2c_adapter cleanup I sent earlier)

 - rtc-ds1307 switches to new-style driver

 - switch at91 platform over

OK, that's it for now ... there are other i2c cleanup patches that
can follow (e.g. remove i2c_client.driver and i2c_client.adapter)
but that's for another day.

- Dave