drm/amd/display: Restructure dpia link training

[WHY]
We intend to consolidate dp tunneling and conventional dp link training.

[HOW]
1. Use the same link training entry for both dp and dpia
2. Move SET_CONFIG of non-transparent mode to dmub side
3. Add set_tps_notification dmub_cmd to notify tps request for
   non-transparent dpia link training
4. Check dpcd request result and abort link training early if dpia
   aux tunneling fails
5. Add option to avoid affect old product
6. Separately handle wait_time_microsec for dpia

Reviewed-by: Cruise Hung <cruise.hung@amd.com>
Reviewed-by: George Shen <george.shen@amd.com>
Reviewed-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com>
Signed-off-by: Peichen Huang <PeiChen.Huang@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 24 insertions, 1 deletions

diff --git a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
index e20c220aa8b4..ebcf68bfae2b 100644
--- a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
+++ b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
@@ -682,7 +682,7 @@ union dmub_fw_boot_options {
 		uint32_t gpint_scratch8: 1; /* 1 if GPINT is in scratch8*/
 		uint32_t usb4_cm_version: 1; /**< 1 CM support */
 		uint32_t dpia_hpd_int_enable_supported: 1; /* 1 if dpia hpd int enable supported */
-		uint32_t reserved0: 1;
+		uint32_t enable_non_transparent_setconfig: 1; /* 1 if dpia use conventional dp lt flow*/
 		uint32_t disable_clk_ds: 1; /* 1 if disallow dispclk_ds and dppclk_ds*/
 		uint32_t disable_timeout_recovery : 1; /* 1 if timeout recovery should be disabled */
 		uint32_t ips_pg_disable: 1; /* 1 to disable ONO domains power gating*/
@@ -1308,6 +1308,7 @@ enum dmub_cmd_dpia_type {
 	DMUB_CMD__DPIA_DIG1_DPIA_CONTROL = 0,
 	DMUB_CMD__DPIA_SET_CONFIG_ACCESS = 1,
 	DMUB_CMD__DPIA_MST_ALLOC_SLOTS = 2,
+	DMUB_CMD__DPIA_SET_TPS_NOTIFICATION = 3,
 };
 
 /* DMUB_OUT_CMD__DPIA_NOTIFICATION command types. */
@@ -2139,6 +2140,24 @@ struct dmub_rb_cmd_set_mst_alloc_slots {
 };
 
 /**
+ * Data passed from driver to FW in a DMUB_CMD__SET_TPS_NOTIFICATION command.
+ */
+struct dmub_cmd_tps_notification_data {
+	uint8_t instance; /* DPIA instance */
+	uint8_t tps; /* requested training pattern */
+	uint8_t reserved1;
+	uint8_t reserved2;
+};
+
+/**
+ * DMUB command structure for SET_TPS_NOTIFICATION command.
+ */
+struct dmub_rb_cmd_set_tps_notification {
+	struct dmub_cmd_header header; /* header */
+	struct dmub_cmd_tps_notification_data tps_notification; /* set tps_notification data */
+};
+
+/**
  * DMUB command structure for DPIA HPD int enable control.
  */
 struct dmub_rb_cmd_dpia_hpd_int_enable {
@@ -5305,6 +5324,10 @@ union dmub_rb_cmd {
 	 */
 	struct dmub_rb_cmd_set_mst_alloc_slots set_mst_alloc_slots;
 	/**
+	 * Definition of a DMUB_CMD__DPIA_SET_TPS_NOTIFICATION command.
+	 */
+	struct dmub_rb_cmd_set_tps_notification set_tps_notification;
+	/**
 	 * Definition of a DMUB_CMD__EDID_CEA command.
 	 */
 	struct dmub_rb_cmd_edid_cea edid_cea;