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562898808c
Some USB controller drivers call otg_set_vbus when entering host or device mode. Implement this callback so that VBUS can be turned on and off automatically. This is especially useful when there is no property for a VBUS supply in the controller's binding. This results in a change in semantics of the vbus_draw regulator. Whereas before it represented the VBUS supplied by an A-Device when we acted as a B-Device, now it represents an internal VBUS source. Accordingly, we no longer set the current limit or enable/disable the bus from nop_gpio_vbus_thread. Because this supply was never initialized before the previous commit, there should be no change in behavior. Signed-off-by: Sean Anderson <sean.anderson@seco.com> Link: https://lore.kernel.org/r/20240123225111.1629405-4-sean.anderson@seco.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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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.