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The mpc8xxx GPIO can generate an interrupt on state change. This interrupt can be used to wake up the device from its sleep state if enabled to do so. Add required support to the driver so that the GPIO can be used in this way. In order for the GPIO to actually function in this way, it is necessary to also set the GPIO bit in the RCPM. This can be done via the device tree fsl,rcpm-wakeup property. Signed-off-by: Martyn Welch <martyn.welch@collabora.com> Link: https://lore.kernel.org/r/20240820143328.1987442-1-martyn.welch@collabora.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@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 reStructuredText 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.