drm/dp: Add define to set 0.5% down-spread in MAX_DOWNSPREAD register

Support of 0.5% down-spread is required for DisplayPort Specification
Version 1.1 Sink.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
[treding@nvidia.com: rename to DP_MAX_DOWNSPREAD_0_5]
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 1252108da0efcfafe809bfb955bf88a5e71ac965..9d03f167007bc1bbcc6689fe76e9d5355ab02fef 100644 (file)
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -73,6 +73,7 @@
 # define DP_ENHANCED_FRAME_CAP             (1 << 7)
 
 #define DP_MAX_DOWNSPREAD                   0x003
+# define DP_MAX_DOWNSPREAD_0_5             (1 << 0)
 # define DP_NO_AUX_HANDSHAKE_LINK_TRAINING  (1 << 6)
 
 #define DP_NORP                             0x004