On Mon, Aug 06, 2012 at 06:00:31PM +0800, Hui Wang wrote:

The sgtl5000 codec driver is an i2c driver instead of a platform driver, current of_i2c subsystem will convert an i2c device node into a traditional i2c device, the of_match_table is not used.

No, this is a regression - even though we can take a good guess for I2C devices it is always good to provide a compatible property to avoid ambiguity.