[alsa-devel] [PATCH v2 00/12] Add Samus Hotwording for RT5677

[Curtis Malainey]

This patch series adds the hotwording implementation used in the
Pixelbook on the RT5677 driver.

Known Issues:
There is a known issue where the system will fail to detect a hotword if
suspended while the stream is open. This is due to the fact that the
haswell-dsp suspends its I2S MCLK before the RT5677 suspends which
causes the writes and reads to become corrupted as a result. Any
recommendations to correct this behaviour would be appreciated.

Changes since v1:
* Addressed Mark's and Kuninori's comments
  * Adjusted DAI Links
  * Squashed related patches
  * Removed all kcontrol writes
* Addressed race condition with dapm
* Added firmware boot check
* Moved all clocking to driver API
* Moved DAPM routes that spanned drivers to machine driver

Cc: Dylan Reid <dgreid at chromium.org>
Cc: Ben Zhang <benzh at chromium.org>

Ben Zhang (8):
  ASoC: rt5677: Add a PCM device for streaming hotword via SPI
  ASoC: rt5677: Load firmware via SPI using delayed work
  ASoC: bdw-rt5677: Add a DAI link for rt5677 SPI PCM device
  ASoC: rt5677: Enable jack detect while DSP is running
  ASoC: rt5677: Add DAPM audio path for hotword stream
  ASoC: rt5677: Mark reg RT5677_PWR_ANLG2 as volatile
  ASoC: rt5677: Stop and restart DSP over suspend/resume
  ASoC: rt5677: Disable irq at suspend

Curtis Malainey (4):
  ASoC: rt5677: Allow VAD to be shut on/off at all times
  ASoC: bdw-rt5677: Turn on MCLK1 for DSP via DAPM
  ASoC: rt5677: Set ADC clock to use PLL and enable ASRC
  ASoC: rt5677: Wait for DSP to boot before loading firmware

 sound/soc/codecs/rt5677-spi.c       | 397 ++++++++++++++++++++++++
 sound/soc/codecs/rt5677-spi.h       |   1 +
 sound/soc/codecs/rt5677.c           | 447 +++++++++++++++++++++++-----
 sound/soc/codecs/rt5677.h           |  11 +-
 sound/soc/intel/boards/bdw-rt5677.c |  51 ++++
 5 files changed, 834 insertions(+), 73 deletions(-)

-- 
2.23.0.866.gb869b98d4c-goog