Add a new client driver for probes support and move all the probes-related code from the core to the client driver. The probes client driver registers a component driver with one CPU DAI driver for extraction and creates a new sound card with one DUMMY DAI link with a dummy codec that will be used for extracting audio data from specific points in the audio pipeline. The probes debugfs ops are based on the initial implementation by Cezary Rojewski and have been moved out of the SOF core into the client driver making it easier to maintain. This change will make it easier for the probes functionality to be added for all platforms without having the need to modify the existing(15+) machine drivers. Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Link: https://lore.kernel.org/r/20220210150525.30756-10-peter.ujfalusi@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.
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