linux-toradex.git/sound/soc/sdca/Kconfig, branch master

ASoC: SDCA: Make CONFIG_SND_SOC_SDCA a user selectable symbol

2026-05-27T10:13:59+00:00

Currently, CONFIG_SND_SOC_SDCA is a hidden Kconfig symbol, so it must be
selected by a user selectable symbol to be enabled. However, it may not
be possible for configurations to select this symbol without running
into a recursive dependency issue:

  error: recursive dependency detected!
          symbol SOUNDWIRE depends on SND_SOC_SDCA_OPTIONAL
          symbol SND_SOC_SDCA_OPTIONAL default value contains SND_SOC_SDCA
          symbol SND_SOC_SDCA is selected by SND_SOC_ES9356
          symbol SND_SOC_ES9356 depends on SOUNDWIRE

Turn CONFIG_SND_SOC_SDCA into a user selectable symbol so that drivers
can depend on it and allow the user to enable it explicitly.

Signed-off-by: Nathan Chancellor 
Link: https://patch.msgid.link/20260526-es9356-dep-fixes-v1-1-39ac16f43d54@kernel.org
Signed-off-by: Mark Brown

ASoC: sdca: Fix missing regmap dependencies in Kconfig

2026-01-29T14:16:59+00:00

The SDCA modules failed to build with modpost errors:

  ERROR: modpost: "__devm_regmap_init_sdw" [sound/soc/sdca/snd-soc-sdca-class.ko] undefined!
  ERROR: modpost: "__devm_regmap_init_sdw_mbq" [sound/soc/sdca/snd-soc-sdca-class-function.ko] undefined!

The issue occurs because:
- sdca_class.c calls devm_regmap_init_sdw() which requires REGMAP_SOUNDWIRE
- sdca_class_function.c calls devm_regmap_init_sdw_mbq_cfg() which requires REGMAP_SOUNDWIRE_MBQ

However, the Kconfig didn't select these dependencies, causing the symbols
to be unavailable when the SDCA modules are built.

Fix this by adding:
- select REGMAP_SOUNDWIRE to SND_SOC_SDCA_CLASS
- select REGMAP_SOUNDWIRE_MBQ to SND_SOC_SDCA_CLASS_FUNCTION

This ensures the required regmap drivers are enabled when building SDCA support.

Configuration after fix:
  CONFIG_SND_SOC_SDCA_CLASS=m
  CONFIG_SND_SOC_SDCA_CLASS_FUNCTION=m
  CONFIG_REGMAP_SOUNDWIRE=m
  CONFIG_REGMAP_SOUNDWIRE_MBQ=m

Signed-off-by: Boris Faure 
Link: https://patch.msgid.link/20260129141419.13843-1-boris@fau.re
Signed-off-by: Mark Brown

ASoC: SDCA: Fixup some more Kconfig issues

2025-11-28T11:48:02+00:00

As the class driver is manually selectable, it needs to depend on
SOUNDWIRE, which is obviously necessary. Also the depends on in
SND_SOC_SDCA_HID needs to be pulled into SND_SOC_SDCA_CLASS as well,
since HID is selected by the class driver.

Fixes: 2d877d0659cb ("ASoC: SDCA: Add basic SDCA class driver")
Reported-by: kernel test robot 
Closes: https://lore.kernel.org/oe-kbuild-all/202511281223.DDs12LiC-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202511280822.i2fveMpR-lkp@intel.com/
Signed-off-by: Charles Keepax 
Link: https://patch.msgid.link/20251128102841.2930808-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown

ASoC: SDCA: Add basic SDCA function driver

2025-11-20T17:23:01+00:00

Add a driver to support the individual SDCA functions within the class
driver. Use the SDCA helpers to parse the DisCo information and register
a function driver based on those properties. Manage the boot of the
function, reset, FDL, defaults. Manage the function level register map.

Co-developed-by: Maciej Strozek 
Tested-by: Bard Liao 
Reviewed-by: Maciej Strozek 
Reviewed-by: Peter Ujfalusi 
Tested-by: Richard Fitzgerald 
Signed-off-by: Charles Keepax 
Link: https://patch.msgid.link/20251120153023.2105663-14-ckeepax@opensource.cirrus.com
Reviewed-by: Vinod Koul 
Signed-off-by: Mark Brown

ASoC: SDCA: Add basic SDCA class driver

2025-11-20T17:23:00+00:00

Add a device level driver as the entry point for the class driver.
Additional auxiliary drivers will be registered to support each function
within the device. This driver will register those function drivers and
provide the device level functionality, such as monitoring bus
attach/detach, the device level register map, and the root for the IRQ
handling.

Co-developed-by: Maciej Strozek 
Tested-by: Bard Liao 
Reviewed-by: Maciej Strozek 
Reviewed-by: Peter Ujfalusi 
Tested-by: Richard Fitzgerald 
Signed-off-by: Charles Keepax 
Link: https://patch.msgid.link/20251120153023.2105663-13-ckeepax@opensource.cirrus.com
Reviewed-by: Vinod Koul 
Signed-off-by: Mark Brown

ASoC: SDCA: add function devices

2025-11-20T17:22:59+00:00

Use the auxiliary bus to register/unregister subdevices for each
function. Each function will be handled with a separate driver,
matched using a name.

If a vendor wants to override a specific function driver, they could
use a custom name to match with a custom function driver.

Signed-off-by: Pierre-Louis Bossart 
Tested-by: Bard Liao 
Reviewed-by: Maciej Strozek 
Reviewed-by: Peter Ujfalusi 
Tested-by: Richard Fitzgerald 
Signed-off-by: Charles Keepax 
Link: https://patch.msgid.link/20251120153023.2105663-12-ckeepax@opensource.cirrus.com
Reviewed-by: Vinod Koul 
Signed-off-by: Mark Brown

ASoC: SDCA: Add FDL library for XU entities

2025-10-27T15:31:24+00:00

Some instances of the XU Entity have a need for Files to be downloaded
from the Host. In these XUs, there is one instance of a Host to Device
(Consumer) UMP, identified by the FDL_CurrentOwner Control. FDL Library
introduced here implements the FDL flow triggered by FDL_CurrentOwner
irq, which sends a file from SoundWire File Table (SWFT) or from the
firmware directory in specific cases, to the Device FDL UMP.

Currently only Direct method of FDL is implemented.

Reviewed-by: Bard Liao 
Signed-off-by: Maciej Strozek 
Signed-off-by: Charles Keepax 
Reviewed-by: Pierre-Louis Bossart 
Link: https://patch.msgid.link/20251020155512.353774-15-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown

ASoC: SDCA: Kconfig/Makefile fixups

2025-07-13T21:36:39+00:00

Tidy up a few bits of the SDCA Kconfig. Default both HID and IRQ to
enabled, since typically if one wants SDCA all the functionality
will be expected.

Finally, update the IRQ support to match the changes made to the
HID support.

Signed-off-by: Charles Keepax 
Reviewed-by: Arnd Bergmann 
Link: https://patch.msgid.link/20250711100616.296329-2-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown

ASoC: SDCA: fix HID dependency

2025-07-09T15:42:22+00:00

It is not possible to enable SND_SOC_SDCA_HID when SND_SOC_SDCA is built-in
but HID is in a loadable module, as that results in a link failure:

x86_64-linux-ld: sound/soc/sdca/sdca_functions.o: in function `find_sdca_entity_hide':
sdca_functions.c:(.text+0x25b): undefined reference to `sdca_add_hid_device'

Change SND_SOC_SDCA_HID into a 'bool' option that can only be enabled
if this results in a working build, and change the Makefile so this driver
is a loadable module if possible.

Fixes: ac558015dfd8 ("ASoC: SDCA: add a HID device for HIDE entity")
Reviewed-by: Charles Keepax 
Signed-off-by: Arnd Bergmann 
Link: https://patch.msgid.link/20250709152430.1498427-1-arnd@kernel.org
Signed-off-by: Mark Brown

ASoC: Add SDCA IRQ support and some misc fixups

2025-07-01T13:01:53+00:00

Merge series from Charles Keepax :

Add a maintainers entry for SDCA, do a couple of small fixups for
previous chains, and then adding the beginnings of the SDCA IRQ
handling. This is based around a regmap IRQ chip and a few helper
functions that can be called from the client drivers to setup the
IRQs.