2a031a9942
The driver currently only supports configuring for sample rates <= 96k and it isn't possible to setup a configuration that will support all sample rates up to 192k. For sample rates up to 96k MCLK is in the 12MHz group. However, although 192k only requires an I2S clock in the 12MHz group, the cs42l42 audio path is not natively 192k so the audio must be resampled. But for 192k the SRC requires a 24MHz MCLK. It is not possible to switch MCLK between 12MHz and 24MHz groups on-the-fly. The 12MHz group supports all sample rates up to 96k. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20211015133619.4698-11-rf@opensource.cirrus.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.