de8e2d5d80
The existing code relies on conversions from cpu_dai to the sdev structure pointer based on the cpu_dai component. This works fine for HDaudio but will not work for SoundWire DAIs which are registered by a different component. That's a problem preventing reuse of the HDaudio DMA stream allocation for SoundWire DAIs starting with the LunarLake platform. This patch introduces a set of helpers to perform the conversion, and an indirect way of retrieving the sdev pointer based on the swidget->comp intermediate pointer. Suggested-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com Reviewed-by: Rander Wang <rander.wang@intel.com Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com Link: https://lore.kernel.org/r/20230512181702.117483-3-pierre-louis.bossart@linux.intel.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 Restructured Text 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.