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At this point the level (performance state) for an OPP is currently limited to be requested for a device that is attached to a PM domain. Moreover, the device needs to have the so called required-opps assigned to it, which are based upon OPP tables being described in DT. To extend the support beyond required-opps and DT, let's enable the level to be set for all OPPs. More precisely, if the requested OPP has a valid level let's try to request it through the device's optional PM domain, via calling dev_pm_domain_set_performance_state(). Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> [ Viresh: Handle NULL opp in _set_opp_level() ] 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.