[PATCHv4 0/2] McBSP: OMAP3: Add sidetone feature

[Ilkka Koskinen <ilkka.koskinen@nokia.com>]

The first patch implements McBSP sidetone feature on OMAP3 while the second
one provides ALSA interface for using it.

The patch set is based on the patch Eduardo Valentin sent to alsa-devel
mailing list in October 2009. Channel gain control and enabling the sidetone
have been moved to ALSA interface as suggested in comments. 

These patches apply on top of Janusz Krzysztofik's McBSP register cache
patches in linux-omap-2.6.git

Since the version 3, the buggy channel gain control has been fixed. ASoC part 
have been simplified resulting in removing a couple unnecessary functions.
Added a comment to ASoC part explaining McBSP port number vs. index values
used in OMAP McBSP implementation.

Eero Nurkkala (1):
  McBSP: OMAP3: Add sidetone feature

Ilkka Koskinen (1):
  ASoC: OMAP-McBSP: ASoC interface for McBSP sidetone

 arch/arm/mach-omap2/mcbsp.c             |    2 +
 arch/arm/plat-omap/include/plat/mcbsp.h |   60 +++++
 arch/arm/plat-omap/mcbsp.c              |  402 ++++++++++++++++++++++++++++++-
 sound/soc/omap/omap-mcbsp.c             |  138 +++++++++++
 sound/soc/omap/omap-mcbsp.h             |    2 +
 5 files changed, 603 insertions(+), 1 deletions(-)