[PATCH v5 0/4] ASoC: Add TAS67524 quad-channel Class-D amplifier driver

Sen Wang
2026-04-09T22:06:57Z

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 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@ti.com/

Changes in v4:
- Corrected dt-binding compatibles (1/4)
- Reverted 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@ti.com/

Changes in v3:
- Renamed ALL tas675x filenames to tas67524, removed tas6754 compatible instance
- Changed 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)
- Added register section (3/4)
- Added addintional notes: for clarification (3/4)
- Links to v2: https://lore.kernel.org/all/20260401223239.1638881-1-sen@ti.com/

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@ti.com/

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/index.rst | 1 +
Documentation/sound/codecs/tas675x.rst | 686 ++++++
MAINTAINERS | 4 +
sound/soc/codecs/Kconfig | 11 +
sound/soc/codecs/Makefile | 2 +
sound/soc/codecs/tas675x.c | 2193 +++++++++++++++++
sound/soc/codecs/tas675x.h | 367 +++
8 files changed, 3544 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