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Philipp Puschmann
5672bd308e
The touch controller needs some time to wake-up after setting the wake-up gpio. Without having a delay after wake-up probing regularly fails in edt_ft5x06_ts_identify() with an error (i.e. EREMOTEIO) that was caused by a failed i2c transfer. The datasheet sets the wake-up time to 5 ms, although it is not entirely clear. Signed-off-by: Philipp Puschmann <p.puschmann@pironex.com> Link: https://lore.kernel.org/r/20230505115823.545803-1-p.puschmann@pironex.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.