[PATCH v3 0/7]ASoC: qcom: add AudioReach TDM backend support

From: Prasad Kumpatla

Date: Tue Jul 07 2026 - 15:05:22 EST


Add AudioReach support for LPASS Audio IF based TDM backends and wire it
up for the sc8280xp machine driver.

The series first adds topology-driven Audio IF source/sink handling so
the DSP interface parameters can be described by topology while runtime
media format and slot configuration still come from the machine driver.
It then adds TDM DAI operations for q6apm-lpass-dais, exposes the Audio
IF clock IDs through the q6dsp-lpass-ports binding and q6prm clock
tables, and introduces common QCOM helpers for parsing standard
dai-tdm-slot-* properties from backend CPU and codec endpoints.

Finally, sc8280xp uses the common helpers during hw_params to program
CPU and codec TDM slots, derive the backend bit clock from the active
PCM parameters, and request the CPU and codec clocks before the stream is
started.

Changes in v3:
- Reusing of tdm-slot.yaml and update the bindings.

Changes in v2:
- Update AR Module token definitions and validation prefixes.
- Reorder module addresses.
- Add kernel-doc for `struct param_id_audio_if_intf_cfg`.
- Remove unused code and stale comments.
- Clean up comments and naming in q6apm-lpass-ports.h.
- Add bindings for TDM slots

This series depends on:
- https://lore.kernel.org/all/20260607-rubikpi-next-20260605-v1-3-7f334e16fea6@xxxxxxxxxxxxxxx/
- https://lore.kernel.org/linux-arm-msm/20260608023011.942228-1-mohammad.rafi.shaik@xxxxxxxxxxxxxxxx/

Prasad Kumpatla (7):
ASoC: qcom: qdsp6: add topology-driven Audio IF support
ASoC: qcom: q6apm-lpass-dais: add TDM DAI operations
dt-bindings: sound: qcom,q6dsp-lpass-ports: add Audio IF clocks
ASoC: qcom: q6prm: add Audio IF clock IDs
dt-bindings: sound: qcom,sm8250: allow TDM slot properties
ASoC: qcom: common: add DAI-node TDM slot helpers
ASoC: qcom: sc8280xp: add TDM hw_params support

.../bindings/sound/qcom,sm8250.yaml | 18 ++
.../sound/qcom,q6dsp-lpass-ports.h | 29 +++
include/uapi/sound/snd_ar_tokens.h | 89 ++++++++++
sound/soc/qcom/common.c | 165 ++++++++++++++++++
sound/soc/qcom/common.h | 14 ++
sound/soc/qcom/qdsp6/audioreach.c | 97 ++++++++++
sound/soc/qcom/qdsp6/audioreach.h | 81 +++++++++
sound/soc/qcom/qdsp6/q6apm-lpass-dais.c | 57 ++++++
sound/soc/qcom/qdsp6/q6prm-clocks.c | 28 +++
sound/soc/qcom/qdsp6/q6prm.h | 29 +++
sound/soc/qcom/qdsp6/topology.c | 105 +++++++++++
sound/soc/qcom/sc8280xp.c | 60 +++++++
12 files changed, 772 insertions(+)


base-commit: 5c73cd9f0819c1c44e373e3dabb68318b1de1a12
prerequisite-patch-id: 2f1bd3efac328030dd8efe28fb95f84603868043
prerequisite-patch-id: fa309c7712836e2ec2f2a7a130b80f07f28dbba2
prerequisite-patch-id: 84ee327c8398aee280cb16ca48e91d139b6effb6
prerequisite-patch-id: 668be29290a9ea342c0ece1cfec468d9cc6d0b27
--
2.34.1