On Wed, Sep 24, 2014 at 06:02:40PM +0800, Scott Jiang wrote:
> 2014-09-24 16:26 GMT+08:00 Mark Brown <broonie@kernel.org>:

> > Can you go into a bit more detail on the differences - clearly there's
> > some similarlities since the drivers got merged, can we really not share
> > any code?

> First, sport2 only supports i2s and left justified mode, while sport3
> adds i2s packed
> and right justified mode. Second, in tdm mode for sport2, tx and rx
> are dependent and have
> a window granularity of 8 channel. While sport3 doesn't have these
> limits. What's more,
> sport3 is not only used on blackfin. That means many patches can only
> apply to this driver.

These sound more like extended functionality and tweaks rather than
massive updates which need a completely separate driver - new modes and
so on.