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4cf2afd6ef
Adds debugfs access to registers in the Cannon Point PCH PMC that are useful for debugging #SLP_S0 signal assertion and other low power relate activities. Device pm states are latched in these registers whenever the package enters C10 and can be read from slp_s0_debug_status. The pm states may also be latched by writing 1 to slp_s0_dbg_latch which will immediately capture the current state on the next read of slp_s0_debug_status. Signed-off-by: Box, David E <david.e.box@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.