Re: [PATCH v4 00/16] ASoC: amd: acp: ACP7.B/7.F SoundWire machine driver support

[Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>]

On 10/30/26 10:45, Vijendar Mukunda wrote:
> This series adds SoundWire machine driver support for ACP7.B and ACP7.F
> platforms. It extends the existing AMD ACP SoundWire infrastructure with
> per-platform CPU pin ID lookup, PDM controller selection via ACPI and DMI
> quirks, DMIC DAI link and components string handling, PCI subsystem ID
> propagation, and ACPI machine tables for RT721/RT722/RT1320 codec
> configurations on both platforms.
> 
> Changes in v4:
>   - Patch 1: fix missing asoc_sdw_mc_dailink_exit_loop() cleanup on
>     devm_kasprintf() failure in acp-sdw-sof-mach.c mc_probe() (new).
>   - Patch 2: fix missing asoc_sdw_mc_dailink_exit_loop() cleanup on
>     both devm_kasprintf() failure paths in acp-sdw-legacy-mach.c
>     mc_probe(); update commit message to reference the correct function
>     name soc_card_dai_links_create() instead of sof_card_dai_links_create()
>     (new).
>   - Patch 3: remove unused ACP63_SDW_MAX_CPU_DAIS define (new).
>   - Patch 5 (was 2): add comments above ACP7X_SW_AUDIO* define block
>     and get_acp7x_cpu_pin_id() to document the dedicated per-port DMA
>     layout and the port-to-use-case mapping.
>   - Patch 9 (was 6): replace misleading "No functional change" claim
>     with an accurate description of the behavioural change for platforms
>     where ignore_internal_dmic is true (dmic_num now stays zero at the
>     gate rather than reaching the dmic_num > 0 block).
> 
> Changes in v3:
>   - Patch 3: update subject and changelog to accurately describe the new
>     PDM controller selection infrastructure being added.
>   - Patch 5: fix commit subject prefix from "amd: acp7x:" to "amd: acp:"
>     since the change is in the generic ACP SoundWire machine driver
>     (acp-sdw-sof-mach.c), not the ACP7x-specific SOF driver.
> 
> Changes in v2:
>   - Patch 6: simplify the DMIC enable condition as suggested by Pierre:
>     evaluate the three-way boolean once and nest the ignore_internal_dmic
>     check inside, avoiding the double-tested condition from v1.
> 
> Vijendar Mukunda (16):
>   ASoC: amd: acp: fix missing cleanup on devm_kasprintf() failure in
>     mc_probe()
>   ASoC: amd: acp: fix missing cleanup on devm_kasprintf() failure in
>     legacy SDW machine driver
>   ASoC: amd: sdw: remove unused ACP63_SDW_MAX_CPU_DAIS define
>   ASoC: amd: acp: add ACP7.B/7.F SoundWire link count for machine driver
>   ASoC: amd: acp: add ACP7.B/7.F SoundWire DAI link support
>   ASoC: amd: acp: add PDM controller selection for ACP7.B/7.F SoundWire
>     machine driver
>   ASoC: amd: acp: log ASOC_SDW_ACP_DMIC1 quirk in SOF SoundWire machine
>     driver
>   ASoC: amd: acp: enable DMIC DAI link based on PDM controller selection
>   ASoC: amd: acp: move ignore_internal_dmic gate to DMIC enable
>     condition
>   ASoC: amd: acp: add DMIC components string for SOF SoundWire machine
>     driver
>   ASoC: amd: acp: set PCI subsystem ID for SOF SoundWire machine driver
>   ASoC: amd: acp: fix MODULE_AUTHOR missing closing angle bracket
>   ASoC: amd: acp: add ACPI machine tables for ACP7.F SoundWire
>   ASoC: SOF: amd: add alt_machines for ACP7.F SOF SoundWire
>   ASoC: amd: acp: add SoundWire machine table for ACP7.B platform
>   ASoC: SOF: amd: register SoundWire alt_machines for ACP7.B
> 
>  sound/soc/amd/acp/Makefile               |   2 +-
>  sound/soc/amd/acp/acp-sdw-legacy-mach.c  |   8 +-
>  sound/soc/amd/acp/acp-sdw-mach-common.c  |  48 ++++++
>  sound/soc/amd/acp/acp-sdw-sof-mach.c     | 109 +++++++++++--
>  sound/soc/amd/acp/amd-acp7x-acpi-match.c | 198 +++++++++++++++++++++++
>  sound/soc/amd/acp/soc_amd_sdw_common.h   |  45 +++++-
>  sound/soc/amd/mach-config.h              |   2 +
>  sound/soc/sof/amd/pci-acp7x.c            |   2 +
>  8 files changed, 396 insertions(+), 18 deletions(-)
>  create mode 100644 sound/soc/amd/acp/amd-acp7x-acpi-match.c

For the patchset:

Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>

I added two nit-pick comments on naming and DMIC0/DMIC1 explanations, in
case you respin a v5.