[PATCH v3 0/2] ASoC: codecs: Add Nuvoton NAU83G60 audio codec driver

This patch series adds support for the Nuvoton NAU83G60 audio codec.

The NAU83G60 is a stereo Class-D amplifier with an integrated DSP and
I/V-sense capabilities. The driver supports I2C register access through
regmap, DAPM widgets and routes, TDM interface configuration, and DSP
firmware loading.

The series is structured as follows:
- Patch 1: Adds the YAML device tree bindings documentation.
- Patch 2: Adds the ASoC codec driver implementation.

Changes in v3:

[dt-bindings]
 - Remove colon to resolve YAML build warnings.
 - Fix 'firmware-name' property definition to comply with binding schemas

[codec driver]
 - Add Kconfig and Makefile entries for the building system.
 - Change block comments to C++ style.
 - Add initialization for 'data_count' before usage.
 - Fix a potential stack buffer overflow in DSP reply parsing by adding a strict 'data_count <= 0' check.
 - Replace magic numbers with descriptive macros.
 - Return -EBUSY in `nau8360_dac_mux_put_enum()` to prevent playback disruption.
 - Remove the 'GFP_DMA' flag as DMA memory is not strictly required here.
 - Convert multiple 'if' statements to 'switch' statements.
 - Remove internal hardware debugging code for GPIO1 to GPIO3.
 - Initialize TDM slot arrays to resolve `nau8360_set_tdm_slot()` setup failures.
 - Fix event_missing and event_spurious in TDM/PEQ put functions.
 - Fix uninitialized variable usage in TDM slot put.
 - Add "Slot None" mapping with custom _get functions, and optimize I2C reads for this state.
 - Refactor TDM slot validation into nau8360_validate_tdm_slots().

Neo Chang (2):
  ASoC: dt-bindings: nuvoton,nau8360: Add NAU83G60
  ASoC: codecs: nau8360: Add support for NAU83G60 amplifier

 .../bindings/sound/nuvoton,nau8360.yaml       |   86 +
 sound/soc/codecs/Kconfig                      |   10 +
 sound/soc/codecs/Makefile                     |    2 +
 sound/soc/codecs/nau8360-dsp.c                |  704 +++++
 sound/soc/codecs/nau8360-dsp.h                |  116 +
 sound/soc/codecs/nau8360.c                    | 2454 +++++++++++++++++
 sound/soc/codecs/nau8360.h                    |  904 ++++++
 7 files changed, 4276 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/nuvoton,nau8360.yaml
 create mode 100644 sound/soc/codecs/nau8360-dsp.c
 create mode 100644 sound/soc/codecs/nau8360-dsp.h
 create mode 100644 sound/soc/codecs/nau8360.c
 create mode 100644 sound/soc/codecs/nau8360.h

-- 
2.25.1