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6cb13bd18d
DRM_MODE_BLEND_PIXEL_NONE usual be set at ARGB format and pixel alpha is 0xff, no need to do blend, but vop2 platform at the following scene, the cluster win1 and win0 do blend first, the blend result with esmart do blend, we can't direct to close layer_mix0, because the cluster win0 some area will do blend with esmart, so we keep layer0 mix alpha be enabled and set as premutli mode. zpos layer 2 cluster win1[ARGB/BLEND_COVERAGE] -->| 1 cluster win0[ARGB/BLEND_PIXEL_NONE]-->|cluster mix-->| 0 esmart[ARGB/BLEND_PIXEL_NONE] -->|layer0 mix Signed-off-by: Sandy Huang <hjc@rock-chips.com> Change-Id: I4ae75a9b443ea965527fd656821016acca35afe1
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.