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WCD934x provides register read/write interface to soundwire controller via slimbus. Eventhough there was no direct compile time dependency for this so far, however after adding common wcd functions this dependency became explict. We can either move the soundwire specific bits from wcd-common to wcd-sdw.c or something on those lines or explicity add this dependency in Kconfig. Moving this wcd-sdw can fix reported compile issue but it does not make sense to select this codec without soundwire configs. Given the fact that WCD934x is very much providing soundwire functionality it is better to specify the soundwire dependency explicity in Kconfig which should also fix the below compile time error with combination of wcd934x a built-in and soundwire a module and also allow this codec selection only when soundwire is available. Error log: wcd-common.c:undefiined reference to `sdw_write' sound/soc/codecs/wcd-common.o: in function `wcd_bus_config': Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202511210405.zd9wig5Z-lkp@intel.com/ Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com> Link: https://patch.msgid.link/20251121143258.229138-1-srinivas.kandagatla@oss.qualcomm.com Signed-off-by: Mark Brown <broonie@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.