On Fri, Nov 25, 2011 at 11:03:17AM +0900, Tomoya MORINAGA wrote:

...

drivers/base/regmap and also grep in sound/soc/codecs/*.c

Though grepping "regmap" at sound/soc/codecs/*.c, I couldn't find any file. Is this true ?

You should always submit new code against the current development version of the subsystem you're submitting against.