[PATCH 0/4] ASoC: SOF: ipc4: Add support for control change notification

[Peter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>]

Hi,

This series adds support for handling control (switch/enum) change notifications
sent by the firmware.
The use case is similar to what is already used by IPC3 version: the firmware
can update the value of an enum or switch and sends notification to the kernel,
which in turn will notify the user space of a change.

Regards,
Peter
---
Peter Ujfalusi (4):
  ASoC: SOF: ipc4-topology: Helper to find an swidget by module/instance
    id
  ASoC: SOF: ipc4: Add data struct for module notification message from
    firmware
  ASoC: SOF: ipc4-control: Implement control update for switch/enum
    controls
  ASoC: SOF: ipc4: Handle ALSA kcontrol change notification from
    firmware

 include/sound/sof/ipc4/header.h |  29 ++++++
 sound/soc/sof/ipc4-control.c    | 179 ++++++++++++++++++++++++++++++++
 sound/soc/sof/ipc4-priv.h       |   3 +
 sound/soc/sof/ipc4-topology.c   |  20 ++++
 sound/soc/sof/ipc4.c            |  57 ++++++++++
 5 files changed, 288 insertions(+)

-- 
2.42.1