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authorVille Syrjälä <ville.syrjala@linux.intel.com>2014-12-09 21:28:29 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2014-12-10 17:47:24 +0100
commit2be57922d46fdec4360ced2eb108832c5a90bc0e (patch)
tree99b0fc12ec6ca98a345f3d3ce3b4d048aede1103 /drivers/gpu/drm/i915/i915_debugfs.c
parenteb736679aa7e6d6de647909fdf13075605927b3a (diff)
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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: 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>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
-rw-r--r--drivers/gpu/drm/i915/i915_debugfs.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index d74b62d0ec72..0779e7f33f42 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -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;
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