On Sat, Dec 08, 2012 at 10:07:54AM +0530, Padma Venkat wrote:

Samsung i2s driver registers the platform device twice one for the
samsung-i2s.0,1 or 2 and two for samsung-i2s.4(which actually doesn't
represent any H/W peripheral). The max number of I2S blocks on any
Samsung SoC are 3, the secondary device registration starts with
device number 4.The second time registration is for the secondary fifo
interface of a CPU dai if any exists.

With DT support the device number in the driver is always -1, I used
alias id for the above purpose.

So, the thing here is that while the numbers were totally OK for
platform device use they really don't fit into DT at all well.  I think
the thing here is to either have a node for the second CPU side DAI or
to have a single DT link automatically expanded into two DAI links.  I
think the second option is much better - there's only one link on the
board, it just happens to get expanded into two the way things are
currently implemented in ASoC.

This stuff probably also ought to be moved over to soc-pcm as well by
the way.
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