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AK4497 is a 32-bit 2ch DAC and has the same register map as AK4458 with few exceptions: * AK4497 has one more register at the end of register space DFS_READ which is a read only register that allows users to read FS Auto Detection mode. We currently do not use this register so we use the same regmap structure as for ak4458. * Because AK4458 is an 8ch DAC there are some fields that are only used by AK4458 and marked as reserved for AK4497, so for this reason we need to have a distinct set of controls, widgets and routes. Datasheet for AK4497 is at: https://www.akm.com/akm/en/file/ev-board-manual/AK4497EQ.pdf Datasheet for AK4458 is at: https://www.akm.com/akm/en/file/datasheet/AK4458VN.pdf Signed-off-by: Daniel Baluta <daniel.baluta@nxp.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.