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78999d6007
When system wakeup, It will call _dwc2_hcd_resume function and the
port_suspend_change flag will be set to 1 in _dwc2_hcd_resume function.
But in current code, the autosuspend delay for hub is set to zero and
this will cause a strange phenomenon where the USB bus will repeatedly
suspending and resuming.
Considering that setting the port_suspend_change to 1 is only applicable
for partial power mode, there is no need to set port_suspend_change to
1 when DWC2 IP not support partial power mode.
Fixes: c74c26f6e3 ("usb: dwc2: Fix partial power down exiting by
system resume")
Change-Id: Ia57bfb8502cb55a5d9375a5ad609ac4104ff8acb
Signed-off-by: William Wu <william.wu@rock-chips.com>
Signed-off-by: Jianwei Zheng <jianwei.zheng@rock-chips.com>
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.