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A single 32-bit PSR2 training pattern field follows the sixteen element array of PSR table entries in the VBT spec. But, we incorrectly define this PSR2 field for each of the PSR table entries. As a result, the PSR1 training pattern duration for any panel_type != 0 will be parsed incorrectly. Secondly, PSR2 training pattern durations for VBTs with bdb version >= 226 will also be wrong. Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: José Roberto de Souza <jose.souza@intel.com> Cc: stable@vger.kernel.org Cc: stable@vger.kernel.org #v5.2 Fixes:88a0d9606a("drm/i915/vbt: Parse and use the new field with PSR2 TP2/3 wakeup time") Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111088 Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=204183 Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Tested-by: François Guerraz <kubrick@fgv6.net> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190717223451.2595-1-dhinakaran.pandiyan@intel.com (cherry picked from commitb5ea9c9337) Signed-off-by: Jani Nikula <jani.nikula@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.