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As part of composition switch, the device initiates disconnect from the host by clearing the run/stop bit of DCTL and initiates a connect by setting the run/stop bit. But during this entire scenario the core is not reset and there is a possibility of core caching the SETUP packets from the previous session and giving this to the driver once the run/stop bit is set leading to unintnented SETUP packets further leading to stall on endpoint 0. This caused the endpoint 0 to go into a bad state leading to enumeration failures. Also, the databook clearly mentions that the soft reset has to be issued before setting the run/stop bit to initialize a conenct after a disconnect. So, issue soft reset as part of composition switch to fix this issue. Change-Id: Id93bef710e7cdb67a6820cb4c9defecc5ad2a34e Signed-off-by: Sriharsha Allenki <sallenki@codeaurora.org> Signed-off-by: Yaroslav Furman <yaro330@gmail.com> Signed-off-by: Forenche <prahul2003@gmail.com> Signed-off-by: azrim <mirzaspc@gmail.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.