On Wed, Mar 04, 2015 at 02:07:21PM +0100, Maciej S. Szmigiero wrote:

> Against which tree/branch patches for ASoC should be generated?

MAINTAINERS says:

SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEMENT (ASoC)
M:      Liam Girdwood <lgirdwood@gmail.com>
M:      Mark Brown <broonie@kernel.org>
T:      git git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git

mainly the for-next branch, though bugfixes go on for-linus.