Up until the these limits were global/hard-coded, since they are typically limits of the fabric. However, since this is an FPGA generated clock, this may run on setups where one clock is on a fabric, and another one synthesized on another fabric connected via PCIe (or some other inter-connect, and then these limits need to be adjusted for each instance of the AXI CLKGEN. This change wraps the current constants in 'axi_clkgen_limits' struct and the 'axi_clkgen' instance keeps a copy of these limits, which is initialized at probe from the default limits. The limits are stored on the device-tree OF table, so that we can adjust them via the compatible string. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Link: https://lore.kernel.org/r/20201203074037.26940-1-alexandru.ardelean@analog.com Signed-off-by: Stephen Boyd <sboyd@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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