drm/amd/display: Add missing function to fix crash for DP Test pattern 4

Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Hersen Wu 2016-12-23 10:39:22 -05:00 • committed by Alex Deucher
commit d5de97a2b9