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9861f21ff1
In the cpuidle-psci-domain case the ->power_off() callback is usually returning zero to indicate success. This is because the actual call to the PSCI FW to enter the selected domain-idlestate, needs to be done after the ->power_off() callback has returned. When the call to the PSCI FW fails, this leads to receiving an incorrect tracking of the usage/rejected counts for the selected domain-idlestate. In other words, the presented debug-statistics for genpd may look better than what the actually are. To allow a better correctness of the data, let's add a new genpd helper function, which enables the caller adjust the usage/rejected counters for a domain-idlestate, in cases of errors during power-off. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250314100103.1294715-2-ulf.hansson@linaro.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 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.