drm/i915: Update Promotion timer for RC6 TO Mode
drm/i915: Update Promotion timer for RC6 TO Mode

When using RC6 timeout mode, the timeout value
should be written to GEN6_RC6_THRESHOLD.

v2: Updated commit message. (Tom)

v3: Rebase over whitespace differences. (Daniel)

Cc: Tom O'Rourke <65356acdea8e874b4f8d4b467858cc41cc28e3c4@intel.com>
Signed-off-by: Sagar Arun Kamble <62b58dd0eb53fa21fa48cd26c48bd762ae55ccd5@intel.com>
Reviewed-by: Tom O'Rourke <65356acdea8e874b4f8d4b467858cc41cc28e3c4@intel.com>
Signed-off-by: Daniel Vetter <c1b6782c4af8f0673da8923a0702a1832e5940f4@ffwll.ch>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs