drm/i915: Report command parser version 0 if disabled
If the command parser is not active, then it is appropriate to report it as operating at version 0 as no higher mode is supported. This greatly simplifies userspace querying for the command parser as we then do not need to second guess when it will be active (a mixture of module parameters and generational support, which may change over time). v2: s/comand/command/ misspelling in comment Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk> Link: http://patchwork.freedesktop.org/patch/msgid/1462368336-21230-1-git-send-email-chris@chris-wilson.co.ukReviewed-by: NJoonas Lahtinen <joonas.lahtinen@linux.intel.com>
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