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191a27faf5
Create debugfs files that can be used to perform factory calibration. During manufacture, the production line must perform a factory calibration of the amps. This patch adds this functionality via debugfs files. As this is only needed during manufacture, there is no need for this to be available in a normal system so a Kconfig item has been added to enable this. The new Kconfig option is inside a sub-menu because items do not group and indent if the parent is invisible or there are multiple parent dependencies. Anyway the sub-menu reduces the clutter. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Link: https://patch.msgid.link/20251021105022.1013685-5-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 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.