drm/i915/opregion: fix version check
The u32 version field encodes major, minor, revision and reserved. We've basically been checking for any non-zero version. Add opregion version logging while at it. v2: Fix the fix of the version check Fixes: 04ebaadb ("drm/i915/opregion: handle VBT sizes bigger than 6 KB") Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Imre Deak <imre.deak@intel.com> Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: NJani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190208184254.24123-1-jani.nikula@intel.com (cherry picked from commit 98fdaaca) Signed-off-by: NJani Nikula <jani.nikula@intel.com>
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