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Commit 2be57922 authored by Ville Syrjälä's avatar Ville Syrjälä Committed by Daniel Vetter
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drm/i915: Fix CRC support for DP port D on CHV 



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: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
[danvet: Add a check to only allow DP D on chv, not vlv.]
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent eb736679

drivers/gpu/drm/i915/i915_debugfs.c

+6 −0
Original line number Diff line number Diff line
@@ -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;