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The touchscreen can be put into a deep sleep state that prevents it from emitting touch irqs. Put the touchscreen into deep sleep during suspend if it is not marked as a wakeup source. This also fixes a problem with the touchscreen getting unresponsive after system resume when a falling edge trigger is used for the interrupt. When left on during suspend, the touchscreen would pull the interrupt line down in response to touch events, leaving the interrupt effectively disabled after resume. Signed-off-by: Maximilian Weigand <mweigand@mweigand.net> Reviewed-by: Alistair Francis <alistair@alistair23.me> Link: https://lore.kernel.org/r/20230504120316.408687-2-mweigand2017@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.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.