drivers/soundwire/alc1308 : Add ALC1308 soundwire device

This patch adds new soundwire device ALC1308

The codec properties are filled out as best as possible
with the datasheet as a reference.

The ACPI address for the codec is calculated with the information in
the codec driver combined with the devicetree.cb hierarchy where the
link and unique IDs are extracted from the device path.

The unique ID is calculated from schematics by referring to ASEL[1:0]
strap settings. Datasheet of ALC1308 provides info about the mapping of
ASEL strap settings to unique ID

For example this device is connected to master link ID 1 and has strap
settings configuring it for unique ID 2.

chip drivers/soundwire/alc1308
  register "desc" = ""Left Speaker""
  device generic 1.2 on end

Test=Build and boot on TGLRVP.Extract SSDT and confirm that the entries for
PCI0.HDAS.SNDW are present for ALC1308
Test speaker out functionality

Signed-off-by: Anil Kumar <>
Change-Id: Ibf3f1d5c6881cbd106e96ad1ff17ca216aa272ac
Reviewed-by: Duncan Laurie <>
Reviewed-by: Sathyanarayana Nujella
Tested-by: build bot (Jenkins) <>
5 files changed
tree: 6a503208d467b5fffcb53d73dd11a923809d9f6a
  1. 3rdparty/
  2. configs/
  3. Documentation/
  5. payloads/
  6. src/
  7. tests/
  8. util/
  9. .checkpatch.conf
  10. .clang-format
  11. .editorconfig
  12. .gitignore
  13. .gitmodules
  14. .gitreview
  17. gnat.adc
  19. Makefile

coreboot README

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  • make
  • gcc / g++ Because Linux distribution compilers tend to use lots of patches. coreboot does lots of "unusual" things in its build system, some of which break due to those patches, sometimes by gcc aborting, sometimes - and that's worse - by generating broken object code. Two options: use our toolchain (eg. make crosstools-i386) or enable the ANY_TOOLCHAIN Kconfig option if you're feeling lucky (no support in this case).
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