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fc46321d50
reserved plane display will be enabled as following config at dts,
then the reserved plane will be update by other OS, and the reverved
plane zpos is always at the top of other planes.
example:
&vp1 {
rockchip,drm-fbd-mode = <ROCKCHIP_DRM_FBD_FROM_RTOS>;
rockchip,reserved-plane = <ROCKCHIP_VOP2_ESMART1>;
};
If userspace want to exit from reserved plane, you can set the property:
RESERVED_PLANE_MASK to 0, and the reverved plane will become the
normal plane.
Signed-off-by: Sandy Huang <hjc@rock-chips.com>
Change-Id: I34e7a7470e2f6685aea5a228b58bdb84eb9c1e92
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.