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63636d956c
As GPIO hogs are configured at GPIO controller initialization time, adding/removing GPIO hogs in DT overlays does not work. Add support for GPIO hogs described in DT overlays by registering an OF reconfiguration notifier, to handle the addition and removal of GPIO hog subnodes to/from a GPIO controller device node. Note that when a GPIO hog device node is being removed, its "gpios" properties is no longer available, so we have to keep track of which node a hog belongs to, which is done by adding a pointer to the hog's device node to struct gpio_desc. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20200220130149.26283-3-geert+renesas@glider.be Reviewed-by: Frank Rowand <frank.rowand@sony.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> |
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| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
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| sound | ||
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| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
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| .gitignore | ||
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| README | ||
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.