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The chipidea/udc.c file sends a CI_HDRC_CONTROLLER_RESET_EVENT to the wrapper drivers when it calls hw_device_reset(), but that function is not called from chipidea/host.c. And the udc.c file sends the CI_HDRC_CONTROLLER_STOPPED_EVENT but the host.c file doesn't do anything. The intent of the reset event is to allow the wrapper driver to do any wrapper specific things after the reset bit has been set in the usb command register. Therefore, add this event hook in the host role after we toggle that bit. Similarly, the intent of the stopped event is to allow the wrapper driver to do any wrapper specific things after the device is stopped. So when we stop the host role, send the stopped event. Acked-by: Peter Chen <peter.chen@nxp.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org> Signed-off-by: Peter Chen <peter.chen@nxp.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.