Nicholas Kazlauskas d74004b694 drm/amd/display: Expose support for alpha blending on overlays
[Why]
The DRM overlay planes DM exposes support RGBA formats but are currently
forced as fully opaque over whatever they overlay.

[How]
Expose DRM blending mode and alpha properties to userspace.

The overlays exposed support per-pixel pre-multiplied alpha along with
global plane opacity.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-03-19 15:36:49 -05:00
2019-02-15 09:12:28 -08:00
2018-10-31 08:54:14 -07:00
2019-01-21 13:07:03 +13:00
2019-02-12 10:18:08 -08:00
2019-02-13 19:39:24 +01:00
2019-01-05 12:48:25 -08:00
2019-01-04 14:27:09 -07:00
2019-02-17 18:46:40 -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.

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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