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Currently runtime PM is enabled for Tegra HDA driver. One of the concern raised was about handling !PM case in HDA driver. In this case, there is a need to manage clocks and power explicitly in the driver and reviewers were not really convinced about this. The consensus at the end was to enforce PM requirement to keep things simple, rather driver mentioning a dependency on PM. This is how it is done for ARM 64-bit Tegra platforms and the same can be done for 32-bit Tegra platforms too. Finally the objective is to remove dependency on PM availability for all Tegra drivers. The detailed discussion can be found in following patch, https://patchwork.ozlabs.org/patch/1031007/ Signed-off-by: Sameer Pujar <spujar@nvidia.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Jonathan Hunter <jonathanh@nvidia.com> Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.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 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.