cae640c5ff
Merge series from Peter Ujfalusi <peter.ujfalusi@linux.intel.com>: The series adds the basic IPC4 message handling code, implementing the ipc callbacks. Due to the difference between IPC3 and IPC4 messaging we need to introduce new message container for IPC4, but the SOF internal callbacks and structures can be kept as they were and leaving it for the IPC specific code to handle the differences. The series provides the foundation for both lowe level (sound/soc/sof/intel) and high level IPC4 implementation (topologies, firmware loading, control handling, etc).
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.