[PATCH v1 0/2] ASoC: codecs: add Texas Instruments TAS2557 smart amplifier driver

[Gianluca Boiano]

The TAS2557 is a mono Class-D smart amplifier with an on-chip DSP for
speaker protection, controlled over I2C with audio carried over
I2S/TDM. The DSP requires a board-specific firmware image generated
with TI's PurePath Console tuning tools; without it the device passes
no audio.

Patch 1 adds the devicetree binding. Patch 2 adds the ASoC codec
driver: mono and dual-device stereo operation, per-device ti,channel
tuning, and fault-interrupt recovery that reloads the firmware
configuration on clock loss, over-current, brownout or
over-temperature.

Tested in mono configuration on Xiaomi Mi A2 (SDM660, jasmine),
Xiaomi Redmi Note 6 Pro (SDM636, tulip) and Xiaomi Redmi 5 Plus
(MSM8953, vince), driving the top speaker, and in dual-device stereo
configuration on Xiaomi Mi Pad 4 (SDM660, clover).

Based on v7.2-rc1.

Gianluca Boiano (2):
  dt-bindings: sound: add Texas Instruments TAS2557
  ASoC: codecs: add TAS2557 mono smart amplifier driver

 .../devicetree/bindings/sound/ti,tas2557.yaml |  123 +
 MAINTAINERS                                   |    1 +
 sound/soc/codecs/Kconfig                      |   11 +
 sound/soc/codecs/Makefile                     |    2 +
 sound/soc/codecs/tas2557.c                    | 2476 +++++++++++++++++
 sound/soc/codecs/tas2557.h                    |  218 ++
 6 files changed, 2831 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/ti,tas2557.yaml
 create mode 100644 sound/soc/codecs/tas2557.c
 create mode 100644 sound/soc/codecs/tas2557.h


base-commit: dc59e4fea9d83f03bad6bddf3fa2e52491777482
-- 
2.55.0