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[ Upstream commit af833e7f7db3cf4c82f063668e1b52297a30ec18 ] ucsi_psy_get_current_max would return 0mA as the maximum current if UCSI detected a BC or a Default USB Power sporce. The comment in this function is true that we can't tell the difference between DCP/CDP or SDP chargers, but we can guarantee that at least 1-unit of USB 1.1/2.0 power is available, which is 100mA, which is a better fallback value than 0, which causes some userspaces, including the ChromeOS power manager, to regard this as a power source that is not providing any power. In reality, 100mA is guaranteed from all sources in these classes. Signed-off-by: Benson Leung <bleung@chromium.org> Reviewed-by: Jameson Thies <jthies@google.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com> Link: https://lore.kernel.org/r/20250717200805.3710473-1-bleung@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.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.