104ce27bcb
Originally, lineout playback source can only be DAC_3RD. Some SoC masters only support stereo MTKAIF outputs, so lineout path can't be used in such case. MTKAIF connections are as follows. MOSI0 -> DAC_L MOSI1 -> DAC_R MOSI2 -> DAC_3rd In the patch, lineout playback source can be chosen between DAC_L and DAC_3rd, so sound can be outputted via lineout even though SoC only supports stereo MTKAIF outputs. Signed-off-by: Trevor Wu <trevor.wu@mediatek.com> Link: https://lore.kernel.org/r/20230508071532.21665-5-trevor.wu@mediatek.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.