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commitab7aa2866dupstream. If the PHY controller node has a "port" dwc3 tries to find an extcon device even when "usb-role-switch" is present. This happens because dwc3_get_extcon() sees that "port" node and then calls extcon_find_edev_by_node() which will always return EPROBE_DEFER in that case. On the other hand, even if an extcon was present and dwc3_get_extcon() was successful it would still be ignored in favor of "usb-role-switch". Let's just first check if "usb-role-switch" is configured in the device tree and directly use it instead and only try to look for an extcon device otherwise. Fixes:8a0a137997("usb: dwc3: Registering a role switch in the DRD code.") Cc: stable <stable@kernel.org> Signed-off-by: Sven Peter <sven@svenpeter.dev> Link: https://lore.kernel.org/r/20220411155300.9766-1-sven@svenpeter.dev 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.