d2b434730f
[Why] HDMI 2.0 adds aspect ratio attribute to distinguish different 4k modes. According to Appendix E of HDMI 2.0 spec, source should use VSIF to indicate video mode only when the mode is one defined in HDMI 1.4b 4K modes. Otherwise, use AVI infoframes to convey VIC. Current code doesn't take aspect ratio into consideration while constructing avi infoframe. Should modify that. [How] Inherit Ville Syrjälä's work "drm/edid: Prep for HDMI VIC aspect ratio" at https://patchwork.kernel.org/patch/11174639/ Add picture_aspect_ratio attributes to edid_4k_modes[] and construct VIC and HDMI_VIC by taking aspect ratio into consideration. v2: Correct missing initializer error at adding aspect ratio of SMPTE mode. Signed-off-by: Wayne Lin <Wayne.Lin@amd.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191118101832.15487-1-Wayne.Lin@amd.com |
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| README | ||
README
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.