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12e8ed9698
The value shown by power1_max_interval in millisec is essentially: ((1.x * power(2,y)) * 1000) >> 10 Where x and y are read from a HW register. On ATSM, x and y are 0 on power-up so the value shown is 0. Writes of 0 to power1_max_interval had previously been disallowed to avoid computing ilog2(0) but this resulted in the corner-case bug below. Therefore allow writes of 0 now but special case that write to x = y = 0. Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/7754 Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Reviewed-by: Badal Nilawar <badal.nilawar@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230228044334.3630391-1-ashutosh.dixit@intel.com
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.