Yandong Lin a112273253 video: rockchip: mpp: fix hw hang issue
When the CPU is busy, there may be a situation:
1. After the software timeout task of the current task is mounted
2. Than the thread is cut away for too long, and the hardware is
   not configured at this time,
3. The software timeout is triggered to go to reset and poweroff.
4. The thread switches back to configure the hardware
5. The hardware is stuck.

Solution:
In the software timeout processing function, judge whether the hardware
at this time has been configured to start.

Signed-off-by: Yandong Lin <yandong.lin@rock-chips.com>
Change-Id: I00c0794bb2f27690ab8a2341b3bee2d3f942adf8
2021-08-19 15:02:09 +08:00
2019-02-10 00:33:21 +08:00
2019-02-10 00:33:21 +08:00
2019-08-29 19:45:37 +08:00
2019-08-29 19:45:37 +08:00

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.
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.
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