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The same SoC may have different power areas, depending on SoC revision. One option is to use different sets of power area tables for each SoC revision. However, if the differences are small, it is much more space-efficient to have a single set of tables, and fix those up at runtime instead. Hence provide a helper to NULLify power areas that do not exist on some revisions (NULLified power areas are skipped during the registration phase), and support for an optional initialization callback to e.g. fix up power area tables. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.