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Andreas Kemnade 43de32cdf0 usb: musb: fix enumeration after resume commit `17539f2f4f` upstream. On dm3730 there are enumeration problems after resume. Investigation led to the cause that the MUSB_POWER_SOFTCONN bit is not set. If it was set before suspend (because it was enabled via musb_pullup()), it is set in musb_restore_context() so the pullup is enabled. But then musb_start() is called which overwrites MUSB_POWER and therefore disables MUSB_POWER_SOFTCONN, so no pullup is enabled and the device is not enumerated. So let's do a subset of what musb_start() does in the same way as musb_suspend() does it. Platform-specific stuff it still called as there might be some phy-related stuff which needs to be enabled. Also interrupts are enabled, as it was the original idea of calling musb_start() in musb_resume() according to Commit `6fc6f4b87c` ("usb: musb: Disable interrupts on suspend, enable them on resume") Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		History 2018-04-26 11:02:02 +02:00
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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.