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We are currently passing a GPIO number from the global GPIO numberspace into the regulator core for handling enable GPIOs. This is not good since it ties into the global GPIO numberspace and uses gpio_to_desc() to overcome this. Start supporting passing an already initialized GPIO descriptor to the core instead: leaf drivers pick their descriptors, associated directly with the device node (or from ACPI or from a board descriptor table) and use that directly without any roundtrip over the global GPIO numberspace. This looks messy since it adds a bunch of extra code in the core, but at the end of the patch series we will delete the handling of the GPIO number and only deal with descriptors so things end up neat. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
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.