[alsa-devel] [PATCH v3 0/6] soundwire: Add multi link support

[Shreyas NC]

Currently, in the SoundWire subsystem, the concept of stream is
limited to a Master and one or more Slaves(Codecs). This series
aims to add support for multiple Master(s) sharing the same
reference clock and synchronized in the hardware.

This patch series adds:
 - Helpers to lock bus instances part of the stream
 - Boiler plate conversion of code to support a list of
   Master runtime
 - Support multi link bank switch to support synchronization
   between multiple masters
 - Add Intel platform ops for pre/post bank switch

changes in v3:
 - Added comments to explain the trigger for multi link
   bank switch
 - Added comments in the intel_post_bank_switch ops to explain
   how synchronous trigger of bank switch is handled.

Sanyog Kale (2):
  Documentation: soundwire: Add documentation for multi link
  soundwire: Add support to lock across bus instances

Shreyas NC (3):
  soundwire: Initialize completion for defer messages
  soundwire: Add support for multi link bank switch
  soundwire: intel: Add pre/post bank switch ops

Vinod Koul (1):
  soundwire: Handle multiple master instances in a stream

 Documentation/driver-api/soundwire/stream.rst |  29 +-
 drivers/soundwire/bus.c                       |   1 +
 drivers/soundwire/bus.h                       |   4 +
 drivers/soundwire/intel.c                     |  65 ++++
 drivers/soundwire/stream.c                    | 456 ++++++++++++++++++--------
 include/linux/soundwire/sdw.h                 |   8 +-
 6 files changed, 432 insertions(+), 131 deletions(-)

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2.7.4