[PATCH] drm: Add LTTPR defines for DP 1.4

[Siqueira, Rodrigo]

DP 1.4 specification defines Link Training Tunable PHY Repeater (LTTPR)
which is required to add support for systems with Thunderbolt or other
repeater devices.

Cc: Abdoulaye Berthe <Abdoulaye.Berthe at amd.com>
Cc: Harry Wentland <harry.wentland at amd.com>
Cc: Leo Li <sunpeng.li at amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>
Signed-off-by: Abdoulaye Berthe <Abdoulaye.Berthe at amd.com>
---
 include/drm/drm_dp_helper.h | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 8364502f92cf..8336d960da7f 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -134,6 +134,32 @@
 #define DP_SUPPORTED_LINK_RATES		    0x010 /* eDP 1.4 */
 # define DP_MAX_SUPPORTED_RATES		     8	    /* 16-bit little-endian */
 
+/** Link Training (LT)-tunable Physical Repeaters - DP 1.4 **/
+#define DP_LTTPR_REV                                  0xf0000
+#define DP_LTTPR_MAX_LINK_RATE                        0xf0001
+#define DP_LTTPR_REPEATER_CNT                         0xf0002
+#define DP_LTTPR_REPEATER_MODE                        0xf0003
+#define DP_LTTPR_MAX_LANE_CNT                         0xf0004
+#define DP_LTTPR_EXTENDED_WAIT_TIMEOUT                0xf0005
+#define DP_LTTPR_TRAINING_PATTERN_SET_REPEATER1       0xf0010
+#define DP_LTTPR_TRAINING_LANE0_SET_REPEATER1         0xf0011
+#define DP_LTTPR_TRAINING_LANE1_SET_REPEATER1         0xf0012
+#define DP_LTTPR_TRAINING_LANE2_SET_REPEATER1         0xf0013
+#define DP_LTTPR_TRAINING_LANE3_SET_REPEATER1         0xf0014
+#define DP_LTTPR_TRAINING_AUX_RD_INTERVAL_REPEATER1   0xf0020
+#define DP_LTTPR_TRANSMITTER_CAPABILITY_REPEATER1     0xf0021
+#define DP_LTTPR_LANE0_1_STATUS_REPEATER1             0xf0030
+#define DP_LTTPR_LANE2_3_STATUS_REPEATER1             0xf0031
+#define DP_LTTPR_LANE_ALIGN_STATUS_UPDATED_REPEATER1  0xf0032
+#define DP_LTTPR_ADJUST_REQUEST_LANE0_1_REPEATER1     0xf0033
+#define DP_LTTPR_ADJUST_REQUEST_LANE2_3_REPEATER1     0xf0034
+#define DP_LTTPR_SYMBOL_ERROR_COUNT_LANE0_REPEATER1   0xf0035
+#define DP_LTTPR_SYMBOL_ERROR_COUNT_LANE1_REPEATER1   0xf0037
+#define DP_LTTPR_SYMBOL_ERROR_COUNT_LANE2_REPEATER1   0xf0039
+#define DP_LTTPR_SYMBOL_ERROR_COUNT_LANE3_REPEATER1   0xf003b
+#define DP_REPEATER_CONFIGURATION_AND_STATUS_OFFSET   0x50
+#define DP_LTTPR_FEC_STATUS_REPEATER1                 0xf0290
+
 /* Multiple stream transport */
 #define DP_FAUX_CAP			    0x020   /* 1.2 */
 # define DP_FAUX_CAP_1			    (1 << 0)
-- 
2.23.0
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