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b0ac4ef074
Convert wait_for_pc_state() and wait_for_act_freq_limit() to poll_timeout_us(). This brings 2 changes in behavior: Drop the exponential wait and fix a potential much longer sleep. usleep_range() will wait anywhere between `wait` and `wait << 1`, so it's not correct to assume `slept += wait`. This code is not really accurate. Pairing this with the exponential wait increase, it could be waiting much longer than intended. Reviewed-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com> Link: https://lore.kernel.org/r/20250922-xe-iopoll-v4-2-06438311a63f@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@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 reStructuredText 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.