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c1cd5b24d6
VBT appears to have two (or possibly three) ways to indicate the panel rotation. The first is in the MIPI config block, but that apparenly usually (maybe always?) indicates 0 degrees despite the actual panel orientation. The second way to indicate this is in the general features block, which can just indicate whether 180 degress rotation is used. The third might be a separate rotation data block, but that is not at all documented so who knows what it may contain. Let's try the first two. We first try the DSI specicic VBT information, and it it doesn't look trustworthy (ie. indicates 0 degrees) we fall back to the 180 degree thing. Just to avoid too many changes in one go we shall also keep the hardware readout path for now. If this works for more than just my VLV FFRD the question becomes how many of the panel orientation quirks are now redundant? v2: Move the code into intel_dsi.c (Jani) Cc: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181022142015.4026-1-ville.syrjala@linux.intel.com Tested-by: Hans de Goede <hdegoede@redhat.com> |
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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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.