drm/dp: Add the DPCD register required for Extended wake timeout

Add DPCD registers required to configure Extended Wake Timeout
for LTTPR.

Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250122053358.1545039-2-suraj.kandpal@intel.com

diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h
index a6f8b098c56f1496402c77c48458998b7aec0111..480370bba1dedccb59b54693bf2e9511690998c9 100644 (file)
--- a/include/drm/display/drm_dp.h
+++ b/include/drm/display/drm_dp.h
@@ -696,6 +696,9 @@
 #define DP_UPSTREAM_DEVICE_DP_PWR_NEED     0x118   /* 1.2 */
 # define DP_PWR_NOT_NEEDED                 (1 << 0)
 
+#define DP_EXTENDED_DPRX_SLEEP_WAKE_TIMEOUT_GRANT          0x119   /* 1.4a */
+# define DP_DPRX_SLEEP_WAKE_TIMEOUT_PERIOD_GRANTED         (1 << 0)
+
 #define DP_FEC_CONFIGURATION               0x120    /* 1.4 */
 # define DP_FEC_READY                      (1 << 0)
 # define DP_FEC_ERR_COUNT_SEL_MASK         (7 << 1)
@@ -1168,6 +1171,15 @@
 # define DP_VSC_EXT_CEA_SDP_SUPPORTED                  (1 << 6)  /* DP 1.4 */
 # define DP_VSC_EXT_CEA_SDP_CHAINING_SUPPORTED         (1 << 7)  /* DP 1.4 */
 
+#define DP_EXTENDED_DPRX_SLEEP_WAKE_TIMEOUT_REQUEST    0x2211  /* 1.4a */
+# define DP_DPRX_SLEEP_WAKE_TIMEOUT_PERIOD_MASK                0xff
+# define DP_DPRX_SLEEP_WAKE_TIMEOUT_PERIOD_1_MS                0x00
+# define DP_DPRX_SLEEP_WAKE_TIMEOUT_PERIOD_20_MS       0x01
+# define DP_DPRX_SLEEP_WAKE_TIMEOUT_PERIOD_40_MS       0x02
+# define DP_DPRX_SLEEP_WAKE_TIMEOUT_PERIOD_60_MS       0x03
+# define DP_DPRX_SLEEP_WAKE_TIMEOUT_PERIOD_80_MS       0x04
+# define DP_DPRX_SLEEP_WAKE_TIMEOUT_PERIOD_100_MS      0x05
+
 #define DP_DPRX_FEATURE_ENUMERATION_LIST_CONT_1         0x2214 /* 2.0 E11 */
 # define DP_ADAPTIVE_SYNC_SDP_SUPPORTED    (1 << 0)
 # define DP_ADAPTIVE_SYNC_SDP_OPERATION_MODE           GENMASK(1, 0)
@@ -1473,6 +1485,8 @@
 #define DP_MAX_LANE_COUNT_PHY_REPEATER                     0xf0004 /* 1.4a */
 #define DP_Repeater_FEC_CAPABILITY                         0xf0004 /* 1.4 */
 #define DP_PHY_REPEATER_EXTENDED_WAIT_TIMEOUT              0xf0005 /* 1.4a */
+# define DP_EXTENDED_WAKE_TIMEOUT_REQUEST_MASK         0x7f
+# define DP_EXTENDED_WAKE_TIMEOUT_GRANT                        (1 << 7)
 #define DP_MAIN_LINK_CHANNEL_CODING_PHY_REPEATER           0xf0006 /* 2.0 */
 # define DP_PHY_REPEATER_128B132B_SUPPORTED                (1 << 0)
 /* See DP_128B132B_SUPPORTED_LINK_RATES for values */