tree 63c13fa2b5d6072bcd4e58ef522458e23db8616b
parent 16e5ab14d7828c461c346e78f9ba1e9bdd0257aa
author Ville Syrjälä <ville.syrjala@linux.intel.com> 1418153308 +0200
committer Daniel Vetter <daniel.vetter@ffwll.ch> 1418230044 +0100

drm/i915: Engage the DP scramble reset for pipe C on CHV

To get stable CRCs from the DP CRC source we need to reset the
scrambler for each frame. Enable the reset feature when grabbing
CRCs for pipe C on CHV. Pipes A and B were already covered due
sharing the code with VLV.

We can safely extend PIPE_SCRAMBLE_RESET_MASK to deal with CHV since
the extra bit was MBZ on the older platforms.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>