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d4fac9c100
USB OTG is currently not working for new versions of the Variscite Symphony EVK and imx8mn nano SOM (versions >= 1.4a). The PTN5150 circuitry on newer versions of the Symphony EVK board has a non-standard configuration in which the PTN5150 IRQ pin is left unconnected, and the PTN5150 ID pin is connected to GPIO1_IO11. This requires changes to the ptn5150 driver to support this new mode. Variscite have indicated their intention to submit those changes upstream. In the meantime, import device tree changes from linux-5.15 branch of varigit repos to at least make the USB OTG port operate correctly in host mode. Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.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.