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c8a59103e2
dev_pm_genpd_set_performance_state() needs to handle performance state propagation going forward. Currently this routine only gets the required performance state of the device's genpd as an argument, but it doesn't know how to translate that to master genpd(s) of the device's genpd. Introduce a new helper dev_pm_opp_xlate_performance_state() which will be used to translate from performance state of a device (or genpd sub-domain) to another device (or master genpd). Normally the src_table (of genpd sub-domain) will have the "required_opps" property set to point to one of the OPPs in the dst_table (of master genpd), but in some cases the genpd and its master have one to one mapping of performance states and so none of them have the "required-opps" property set. Return the performance state of the src_table as it is in such cases. Tested-by: Rajendra Nayak <rnayak@codeaurora.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@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 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.