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cc49abc246
This chicken bit should be set before enabling FBC to avoid screen
corruption when the plane size has odd vertical and horizontal
dimensions. It is safe to leave the bit set even when FBC is disabled.
v2:
- The bspec's name for this bit on these platforms ("Spare 14") is
pretty meaningless. Let's rename the bit definition to something
that more accurately reflects what the bit really does. (Clint)
v3:
- The chicken register was already defined (along with a few other
gen9-specific bits) farther down. Just add the new bit definition
there. (Clint)
Cc: Clinton Taylor <Clinton.A.Taylor@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190612183631.30540-1-matthew.d.roper@intel.com
Reviewed-by: Clint Taylor <Clinton.A.Taylor@intel.com>