drm/i915/bios: add support for MIPI sequence block v3
The changes since the sequence block v2 are: * The whole MIPI bios data block has a separate 32-bit size field since v3, stored after the version. This facilitates big sequences. * The size of the panel specific sequence blocks has grown to 32 bits. This facilitates big sequences. * The elements within sequences now have an 8-bit size field following the operation byte. This facilitates skipping unknown new operation bytes, i.e. forward compatibility. v2 (of the patch): use DRM_ERROR for unknown operation byte v3 (of the patch): even more bounds checking (Ville) Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1452518102-3154-1-git-send-email-jani.nikula@intel.com
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