drm/i915: enable WaDisableDopClkGating for skl
authorPraveen Paneri <praveen.paneri@intel.com>
Thu, 3 Aug 2017 17:32:10 +0000 (23:02 +0530)
committerRodrigo Vivi <rodrigo.vivi@intel.com>
Thu, 3 Aug 2017 19:30:23 +0000 (12:30 -0700)
commit32087d1425887e2d51e8c77ff9849d73f6384457
tree32da80d060922151269d0c6d64c1b3ab4d18972e
parent23247d715d3cf679cac24d1c4de2d76774a2a495
drm/i915: enable WaDisableDopClkGating for skl

This WA is required when decoupled frequencies for slice and unslice
are enabled. This disables DOP clock gating for skl.

v2: enable the WA for all gen9 platforms (not just for SKL GT4 where
    the hang issue is originally reported) to avoid rare hangs (David)
v3: as per WaDatabase, enable it only for SKL (Rodrigo)

Cc: David Weinehall <david.weinehall@linux.intel.com>
Reviewed-by: David Weinehall <david.weinehall@linux.intel.com>
Signed-off-by: Praveen Paneri <praveen.paneri@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1501781530-8186-1-git-send-email-praveen.paneri@intel.com
drivers/gpu/drm/i915/intel_pm.c