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The Piano DAC 2.1 has support for 4 channels with subwoofer. Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net> Reviewed-by: Vijay Kumar B. <vijaykumar@zilogic.com> Reviewed-by: Raashid Muhammed <raashidmuhammed@zilogic.com> Add clock changes and mute gpios (#1938) Also improve code style and adhere to ALSA coding conventions. Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net> Reviewed-by: Vijay Kumar B. <vijaykumar@zilogic.com> Reviewed-by: Raashid Muhammed <raashidmuhammed@zilogic.com> PianoPlus: Dual Mono & Dual Stereo features added (#2069) allo-piano-dac-plus: Master volume added + fixes Master volume added, which controls both DACs volumes. See: https://github.com/raspberrypi/linux/pull/2149 Also fix initial max volume, default mode value, and unmute. Signed-off-by: allocom <sparky-dev@allo.com> ASoC: allo-piano-dac-plus: fix S24_LE format Remove set_bclk_ratio call so 24-bit data is transmitted in 24 bclk cycles. Signed-off-by: Matthias Reichl <hias@horus.com>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.