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c279bec18e
Add helpers to read the min/max frequency being used by SLPC. This is done by send a H2G command which forces SLPC to update the shared data struct which can then be read. These helpers will be used in a sysfs patch later on. v2: Address review comments (Michal W) v3: Return err in case of query failure (Michal W) v4: Move decode_min/max_freq to this patch Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com> Signed-off-by: Sundaresan Sujaritha <sujaritha.sundaresan@intel.com> Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210730202119.23810-9-vinay.belgaumkar@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.