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Use a separate regmap name for each port so they can each have their own debugfs entry, allowing to access each port registers independently. For example, a four channels/ports device like the MAX14830 will have four entries in its regmap debugfs: $ find /sys/kernel/debug/regmap -type d | grep spi0.0 /sys/kernel/debug/regmap/spi0.0-port0 /sys/kernel/debug/regmap/spi0.0-port1 /sys/kernel/debug/regmap/spi0.0-port2 /sys/kernel/debug/regmap/spi0.0-port3 Cc: Jan Kundrát <jan.kundrat@cesnet.cz> Link: https://lore.kernel.org/all/77f101f1-897d-4e6d-a8fd-27b818caf768@cesnet.cz/ Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> Link: https://lore.kernel.org/r/20240118152213.2644269-9-hugo@hugovil.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.