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29e96fe9e0
In the macb binding documentation "phys" is an optional property. Make implementation in line with it. This change allows the traditional flow in which first stage bootloader does PS-GT configuration to work along with newer use cases in which PS-GT configuration is managed by the phy-zynqmp driver. It fixes below macb probe failure when macb DT node doesn't have SGMII phys handle. "macb ff0b0000.ethernet: error -ENODEV: failed to get PS-GTR PHY" Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Reviewed-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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.