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2fc439df49
The config done bits of VP0, VP1, VP2 on RK3568 stands on the first three bits on REG_CFG_DONE register without mask bit. If two or three config done events happens one after another in a very shot time, the flowing config done write may override the previous config done bit before it take effect: 1: config done 0x8001 for VP0 2: config done 0x8002 for VP1 0x8002 may override 0x8001 before it take effect. So we do a read | write here. Change-Id: I35ad380b1c2751542697c9c7cdacea12dd08d924 Signed-off-by: Andy Yan <andy.yan@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.
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.