35c8c82fa0
Merge series from Ondřej Jirman <megi@xff.cz>: This series adds support for jack detection to this codec. I used and tested this on Pinephone. It works quite nicely. I tested it against Android headset mic button resistor specification. The patches are a rewritten and debugged version of the original ones from Arnaud Ferraris and Samuel Holland, improved to better handle headset button presses and with more robust plug-in/out event debouncing, and to use set_jack API instead of sniffing the sound card widget names, to detect the type of jack connector.
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.