[06/10,V2] spi: Add SPI driver for mx233/mx28

[Marek Vasut]

Dear Shawn Guo,

> On Tue, Jul 31, 2012 at 08:35:59PM -0700, Guenter Roeck wrote:
> > I think the call to spi_master_put() triggers the call to
> > spi_master_release(). If so, kfree() would not be needed at all, and the
> > documentation is wrong.
> 
> Also those drivers calling kfree in probe.

Looks like that to me ...

> Regards,
> Shawn

Best regards,
Marek Vasut