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BCM2711 changes from a 256 entry lookup table to a 16 point piecewise linear function as the pipeline bitdepth has increased to make a LUT unwieldy. Implement a simple conversion from a 256 entry LUT that userspace is likely to expect to 16 evenly spread points in the PWL. This could be improved with curve fitting at a later date. Co-developed-by: Juerg Haefliger <juergh@canonical.com> Signed-off-by: Juerg Haefliger <juergh@canonical.com> Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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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