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885692ae3c
Some SoCs like the i.MX93 have aliases for up to eight UARTs, see: https://github.com/torvalds/linux/blob/v6.1/arch/arm64/boot/dts/freescale/imx93.dtsi#L31-L38 Increase UART_NR from 6 to 8 to support lpuart7 and lpuart8 and avoid initialization failures like the following: [ 0.837146] fsl-lpuart 42690000.serial: serial6 out of range [ 0.842814] fsl-lpuart: probe of 42690000.serial failed with error -22 Signed-off-by: Nate Drude <nate.d@variscite.com> Reviewed-by: Sherry Sun <sherry.sun@nxp.com> Link: https://lore.kernel.org/r/20221222145634.2217793-1-nate.d@variscite.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.