On Sun, Jan 06, 2008 at 11:46:37AM +1100, David Gibson wrote:

Ok, but couldn't you strucutre your I2S or fabric driver so that it
only becomes fully operational once the codec driver has registered
with it?

That's what ASoC v2 is doing, more or less (the core brings things on
line rather than drivers doing it).  For v1 so long as it doesn't cause
any problems in practice I'm not sure I'd worry about it too much.