[v3] i2c: Driver to expose PowerNV platform i2c busses

[Michael Ellerman]

On Mon, 2014-08-12 at 06:36:16 UTC, Neelesh Gupta wrote:
> The patch exposes the available i2c busses on the PowerNV platform
> to the kernel and implements the bus driver to support i2c and
> smbus commands.
> The driver uses the platform device infrastructure to probe the busses
> on the platform and registers them with the i2c driver framework.

>  arch/powerpc/include/asm/opal.h                    |   29 ++
>  arch/powerpc/platforms/powernv/opal-wrappers.S     |    1 
>  arch/powerpc/platforms/powernv/opal.c              |   11 +

This had major conflicts in the above files.

I've fixed it up but please check I did it correctly:

  https://github.com/mpe/powerpc-merge/commits/pw/neelesh-i2c

It also doesn't build as a module:

  $ grep CONFIG_I2C_OPAL .config
  CONFIG_I2C_OPAL=m
  $ make ...
  ...
  ERROR: "opal_i2c_request" [drivers/i2c/busses/i2c-opal.ko] undefined!

cheers