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The setting of MSA is done by the DDI .pre_enable() hook. And when we are using MST, the MSA is only set to first mst stream by calling of DDI .pre_eanble() hook. It raies issues to non-first mst streams. Wrong MSA or missed MSA packets might show scrambled screen or wrong screen. This splits a setting of MSA to MST and SST cases. And In the MST case it will call a setting of MSA after an allocating of Virtual Channel from MST encoder pre_enable callback. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=112212 Fixes:0c06fa1560("drm/i915/dp: Add support of BT.2020 Colorimetry to DP MSA") Fixes:d4a415dcda("drm/i915: Fix MST oops due to MSA changes") Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191106212636.502471-1-gwan-gyeong.mun@intel.com Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> [vsyrjala: nuke spurious newline] Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.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.
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.