[PATCH v6 0/4] ASoC: Add TAS67524 quad-channel Class-D amplifier driver

[Sen Wang]

This series adds support for the TI TAS675x (TAS6754, TAS67524)
quad-channel automotive Class-D amplifiers. The devices have an
integrated DSP and load diagnostics, and are controlled over I2C.

Patch 1 adds the dt-binding, patch 2 the codec driver, patch 3 the
ALSA mixer controls documentation, and patch 4 adds the MAINTAINERS
entry.

Tested on AM62D-EVM with a TAS67CD-AEC daughter card. For setup &
test procedures, refer to the GitHub repository.

GitHub: https://github.com/SenWang125/tas67-linux

Changes in v6:
 - Cancel fault_check_work and disable IRQ in i2c_remove (2/4)
 - (Report by Sashiko) Use regmap_bulk_read for RTLDG impedance to prevent data tearing (2/4)
 - Add Fault Monitoring documentation section with register decoding (3/4)
 - Links to v5: https://lore.kernel.org/all/20260409220607.686146-1-sen@xxxxxx/

Changes in v5:
 - Drop ti,tas6754 device id reference (2/4)
 - Restrict RTLDG threshold max to 24bit (2/4)
 - Complete error checking for set_dcldg_trigger (2/4)
 - Add runtime PM reference in IRQ handler (2/4)
 - Links to v4: https://lore.kernel.org/all/20260408053149.1369350-1-sen@xxxxxx/

Changes in v4:
 - Correct dt-binding compatibles (1/4)
 - Revert v3's change and made tas67524.c back to tas675x.c (2/4)
 - Links to v3: https://lore.kernel.org/all/20260403050627.635591-1-sen@xxxxxx/

Changes in v3:
 - Rename ALL tas675x filenames to tas67524, removed tas6754 compatible instance
 - Change pd-gpios to powerdown-gpios, cleanup unnessary .yaml formatting (1/4)
 - Opt to use disable delayed_work and re-enable on runtime suspend/resume,
 similarly, use disable/enable IRQ on system suspend/resume. (2/4)
 - Include IRQ_NONE on ISR returns. (2/4)
 - Clarify _check_faults() function which now returns need_clear boolean (2/4)
 - Add register section (3/4)
 - Add addintional notes: for clarification (3/4)
 - Links to v2: https://lore.kernel.org/all/20260401223239.1638881-1-sen@xxxxxx/

Changes in v2:
 - Remove redundant DAPM event function (2/4)
 - Move IRQ request past power_on, so regs can be set in a clean state (2/4)
 - Add delayed_work at probe time to accomdate no PM configs (2/4)
 - Change .set_fmt and .dapm_routes callbacks to the same tas675x_set_fmt name (2/4)
 - Links to v1: https://lore.kernel.org/all/20260401024210.28542-1-sen@xxxxxx/

Sen Wang (4):
  ASoC: dt-bindings: Add ti,tas67524
  ASoC: codecs: Add TAS67524 quad-channel audio amplifier driver
  Documentation: sound: Add TAS675x codec mixer controls documentation
  MAINTAINERS: add entry for TAS67524 audio amplifier

 .../bindings/sound/ti,tas67524.yaml           |  280 +++
 Documentation/sound/codecs/tas675x.rst        |  820 ++++++
 MAINTAINERS                                   |    4 +
 sound/soc/codecs/Kconfig                      |   12 +
 sound/soc/codecs/Makefile                     |    2 +
 sound/soc/codecs/tas675x.c                    | 2194 +++++++++++++++++
 sound/soc/codecs/tas675x.h                    |  367 +++
 7 files changed, 3679 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/ti,tas67524.yaml
 create mode 100644 Documentation/sound/codecs/tas675x.rst
 create mode 100644 sound/soc/codecs/tas675x.c
 create mode 100644 sound/soc/codecs/tas675x.h

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2.43.0