7aecf59770
The pinmux allows for 2 SoundWire links to be enabled along with DMICs. This was the default configuration on the TGL-RVP. One issue with this configuration is that we don't have a means to automatically detect how many DMICs are used, which in turn requires the user to manually rename the topology file required on a platform. This was borderline acceptable for Intel RVPs, but now that this configuration is present in HP devices we need to automate the process. This patch makes use of the NHLT information and will pass the DMIC number to the machine driver as a parameter. A follow-up patch will expose the DMIC number to userspace/UCM with the configuration strings. The Google devices do make use of DMICs instead of SoundWire link 2 and 3, but their topology is unique enough that they do not need any NHTL support or topology renaming. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Link: https://lore.kernel.org/r/20210208233336.59449-10-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.