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In the case hcd autosuspend is enabled, the hcd will enter L2 state if no device connected. But if the controller works in otg mode, the gadget driver still works in L0 state if connected with host. This may result in transfer fail when gadget enqueue new request but the hcd driver has set the global state into L2. This patch prevent the hcd enter L2 state if the controller work in device mode. Signed-off-by: Meng Dongyang <daniel.meng@rock-chips.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> |
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| README | ||
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.