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drm/i915: Fix CRC support for DP port D on CHV

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Add the missing CRC control register value for DP port D on CHV.
Untested as I don't have a CHV machine with DP on port D.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[danvet: Add a check to only allow DP D on chv, not vlv.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2014-12-09 21:28:29 +02:00 committed by Daniel Vetter
parent eb736679aa
commit 2be57922d4
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/i915/i915_debugfs.c
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@ -3100,6 +3100,12 @@ static int vlv_pipe_crc_ctl_reg(struct drm_device *dev,
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_C_VLV;
need_stable_symbols = true;
break;
case INTEL_PIPE_CRC_SOURCE_DP_D:
if (!IS_CHERRYVIEW(dev))
return -EINVAL;
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_D_VLV;
need_stable_symbols = true;
break;
case INTEL_PIPE_CRC_SOURCE_NONE:
*val = 0;
break;