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18a6c866bb
This patch adds USB role switch support to the tps6598x. The setup to initiate or accept a data-role switch is both assumed and currently required to be baked-into the firmware as described in TI's document here. Link: https://www.ti.com/lit/an/slva843a/slva843a.pdf With this change its possible to use the USB role-switch API to detect and notify role-switches to downstream consumers. Tested with a ChipIdea controller on a Qualcomm MSM8939. Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Nikolaus Voss <nikolaus.voss@loewensteinmedical.de> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Gustavo A. R. Silva <garsilva@embeddedor.com> Cc: Kees Cook <keescook@chromium.org> Cc: linux-usb@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Link: https://lore.kernel.org/r/20200511231930.2825183-2-bryan.odonoghue@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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 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.