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05f4646409
Qualcomm PCIe controllers have debug registers in the MHI region that count PCIe link transitions. Expose them over debugfs to userspace to help debug the low power issues. Note that even though the registers are prefixed as PARF_, they don't live under the "parf" register region. The register naming is following the Qualcomm's internal documentation as like other registers. While at it, let's arrange the local variables in probe function to follow reverse XMAS tree order. Link: https://lore.kernel.org/r/20230316081117.14288-20-manivannan.sadhasivam@linaro.org Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
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.