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7b2ac489c3972bb73951c04fe438f0af0ef93fb3
Add an initial description of the i2c1 bus with a pca9646 i2c switch and various gpio expanders and sensors behind that. Only add the sensors which already have upstream drivers. According to the datasheet the pca9646 is software compatible with pca9546 so no driver changes should be required. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Signed-off-by: Shawn Guo <shawnguo@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.
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