[PATCH] drm/dp: DPCD register defines for link status within ESI field

[Dhinakaran Pandiyan]

Link status is available in the ESI field on devices with DPCD r1.2 or
higher. DP spec also says "An MST upstream device shall use this field
instead of the Link/Sink Device Status field registers, starting from DPCD
Address 00200h."

Cc: Jani Nikula <jani.nikula at intel.com>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
---
 include/drm/drm_dp_helper.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 2c412a15cfa1..0bf15525cdd0 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -738,6 +738,11 @@
 #define DP_RECEIVER_ALPM_STATUS		    0x200b  /* eDP 1.4 */
 # define DP_ALPM_LOCK_TIMEOUT_ERROR	    (1 << 0)
 
+#define LANE0_1_STATUS_ESI                  0x200c /* Same as status in 0x202 */
+#define LANE2_3_STATUS_ESI                  0x200d /* Same as status in 0x203 */
+#define LANE_ALIGN_STATUS_UPDATED_ESI       0x200e /* Same as status in 0x204 */
+#define SINK_STATUS_ESI                     0x200f /* Same as status in 0x205 */
+
 #define DP_DPRX_FEATURE_ENUMERATION_LIST    0x2210  /* DP 1.3 */
 # define DP_GTC_CAP					(1 << 0)  /* DP 1.3 */
 # define DP_SST_SPLIT_SDP_CAP				(1 << 1)  /* DP 1.4 */
-- 
2.11.0