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The A523 contains a pin controller similar to previous SoCs, although using 10 GPIO banks (PortB-PortK), all of them being IRQ capable. With this SoC we introduce a new style of binding, where the pinmux values for each pin group are stored in the new "allwinner,pinmux" property in the DT node, instead of requiring every driver to store a mapping between the function names and the required pinmux. Add a new binding file, since all the different variants of the old binding are making the file a bit unwieldy to handle already, and the new property would make the situation worse. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/20250306235827.4895-7-andre.przywara@arm.com Signed-off-by: Linus Walleij <linus.walleij@linaro.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.