Merge tag 'amd-drm-next-5.17-2021-12-30' of ssh://gitlab.freedesktop.org/agd5f/linux into drm-nextdrm-next-2022-01-07

amd-drm-next-5.17-2021-12-30:

amdgpu:
- Suspend/resume fixes
- Fence fix
- Misc code cleanups
- IP discovery fixes
- SRIOV fixes
- RAS fixes
- GMC 8 VRAM detection fix
- FRU fixes for Aldebaran
- Display fixes

amdkfd:
- SVM fixes
- IP discovery fixes

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211230141032.613596-1-alexander.deucher@amd.com

7 files changed, 805 insertions, 267 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index c250f6de5136..91c4874473d6 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -274,24 +274,6 @@ static bool create_links(
 			goto failed_alloc;
 		}
 
-#if defined(CONFIG_DRM_AMD_DC_DCN)
-		if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) &&
-				dc->caps.dp_hpo &&
-				link->dc->res_pool->res_cap->num_hpo_dp_link_encoder > 0) {
-			/* FPGA case - Allocate HPO DP link encoder */
-			if (i < link->dc->res_pool->res_cap->num_hpo_dp_link_encoder) {
-				link->hpo_dp_link_enc = link->dc->res_pool->hpo_dp_link_enc[i];
-
-				if (link->hpo_dp_link_enc == NULL) {
-					BREAK_TO_DEBUGGER();
-					goto failed_alloc;
-				}
-				link->hpo_dp_link_enc->hpd_source = link->link_enc->hpd_source;
-				link->hpo_dp_link_enc->transmitter = link->link_enc->transmitter;
-			}
-		}
-#endif
-
 		link->link_status.dpcd_caps = &link->dpcd_caps;
 
 		enc_init.ctx = dc->ctx;
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_debug.c b/drivers/gpu/drm/amd/display/dc/core/dc_debug.c
index 21be2a684393..643762542e4d 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_debug.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_debug.c
@@ -422,6 +422,8 @@ char *dc_status_to_str(enum dc_status status)
 		return "The operation is not supported.";
 	case DC_UNSUPPORTED_VALUE:
 		return "The value specified is not supported.";
+	case DC_NO_LINK_ENC_RESOURCE:
+		return "No link encoder resource";
 	case DC_ERROR_UNEXPECTED:
 		return "Unexpected error";
 	}
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index 3d75f56a939c..dc1380b6c5e0 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -66,31 +66,6 @@
 /*******************************************************************************
  * Private functions
  ******************************************************************************/
-#if defined(CONFIG_DRM_AMD_DC_DCN)
-static bool add_dp_hpo_link_encoder_to_link(struct dc_link *link)
-{
-	struct hpo_dp_link_encoder *enc = resource_get_unused_hpo_dp_link_encoder(
-					link->dc->res_pool);
-
-	if (!link->hpo_dp_link_enc && enc) {
-		link->hpo_dp_link_enc = enc;
-		link->hpo_dp_link_enc->transmitter = link->link_enc->transmitter;
-		link->hpo_dp_link_enc->hpd_source = link->link_enc->hpd_source;
-	}
-
-	return (link->hpo_dp_link_enc != NULL);
-}
-
-static void remove_dp_hpo_link_encoder_from_link(struct dc_link *link)
-{
-	if (link->hpo_dp_link_enc) {
-		link->hpo_dp_link_enc->hpd_source = HPD_SOURCEID_UNKNOWN;
-		link->hpo_dp_link_enc->transmitter = TRANSMITTER_UNKNOWN;
-		link->hpo_dp_link_enc = NULL;
-	}
-}
-#endif
-
 static void dc_link_destruct(struct dc_link *link)
 {
 	int i;
@@ -118,12 +93,6 @@ static void dc_link_destruct(struct dc_link *link)
 		link->link_enc->funcs->destroy(&link->link_enc);
 	}
 
-#if defined(CONFIG_DRM_AMD_DC_DCN)
-	if (link->hpo_dp_link_enc) {
-		remove_dp_hpo_link_encoder_from_link(link);
-	}
-#endif
-
 	if (link->local_sink)
 		dc_sink_release(link->local_sink);
 
@@ -881,6 +850,7 @@ static bool dc_link_detect_helper(struct dc_link *link,
 	enum dc_connection_type pre_connection_type = dc_connection_none;
 	bool perform_dp_seamless_boot = false;
 	const uint32_t post_oui_delay = 30; // 30ms
+	struct link_resource link_res = { 0 };
 
 	DC_LOGGER_INIT(link->ctx->logger);
 
@@ -975,7 +945,10 @@ static bool dc_link_detect_helper(struct dc_link *link,
 
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 			if (dp_get_link_encoding_format(&link->reported_link_cap) == DP_128b_132b_ENCODING)
-				add_dp_hpo_link_encoder_to_link(link);
+				link_res.hpo_dp_link_enc = resource_get_hpo_dp_link_enc_for_det_lt(
+						&link->dc->current_state->res_ctx,
+						link->dc->res_pool,
+						link);
 #endif
 
 			if (link->type == dc_connection_mst_branch) {
@@ -986,7 +959,7 @@ static bool dc_link_detect_helper(struct dc_link *link,
 				 * empty which leads to allocate_mst_payload() has "0"
 				 * pbn_per_slot value leading to exception on dc_fixpt_div()
 				 */
-				dp_verify_mst_link_cap(link);
+				dp_verify_mst_link_cap(link, &link_res);
 
 				/*
 				 * This call will initiate MST topology discovery. Which
@@ -1150,6 +1123,7 @@ static bool dc_link_detect_helper(struct dc_link *link,
 			// verify link cap for SST non-seamless boot
 			if (!perform_dp_seamless_boot)
 				dp_verify_link_cap_with_retries(link,
+								&link_res,
 								&link->reported_link_cap,
 								LINK_TRAINING_MAX_VERIFY_RETRY);
 		} else {
@@ -1844,6 +1818,8 @@ static void enable_stream_features(struct pipe_ctx *pipe_ctx)
 		union down_spread_ctrl old_downspread;
 		union down_spread_ctrl new_downspread;
 
+		memset(&old_downspread, 0, sizeof(old_downspread));
+
 		core_link_read_dpcd(link, DP_DOWNSPREAD_CTRL,
 				&old_downspread.raw, sizeof(old_downspread));
 
@@ -2503,7 +2479,8 @@ static void write_i2c_redriver_setting(
 		DC_LOG_DEBUG("Set redriver failed");
 }
 
-static void disable_link(struct dc_link *link, enum signal_type signal)
+static void disable_link(struct dc_link *link, const struct link_resource *link_res,
+		enum signal_type signal)
 {
 	/*
 	 * TODO: implement call for dp_set_hw_test_pattern
@@ -2522,20 +2499,20 @@ static void disable_link(struct dc_link *link, enum signal_type signal)
 		struct dc_link_settings link_settings = link->cur_link_settings;
 #endif
 		if (dc_is_dp_sst_signal(signal))
-			dp_disable_link_phy(link, signal);
+			dp_disable_link_phy(link, link_res, signal);
 		else
-			dp_disable_link_phy_mst(link, signal);
+			dp_disable_link_phy_mst(link, link_res, signal);
 
 		if (dc_is_dp_sst_signal(signal) ||
 				link->mst_stream_alloc_table.stream_count == 0) {
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 			if (dp_get_link_encoding_format(&link_settings) == DP_8b_10b_ENCODING) {
 				dp_set_fec_enable(link, false);
-				dp_set_fec_ready(link, false);
+				dp_set_fec_ready(link, link_res, false);
 			}
 #else
 			dp_set_fec_enable(link, false);
-			dp_set_fec_ready(link, false);
+			dp_set_fec_ready(link, link_res, false);
 #endif
 		}
 	} else {
@@ -2646,7 +2623,7 @@ static enum dc_status enable_link(
 	 * new link settings.
 	 */
 	if (link->link_status.link_active) {
-		disable_link(link, pipe_ctx->stream->signal);
+		disable_link(link, &pipe_ctx->link_res, pipe_ctx->stream->signal);
 	}
 
 	switch (pipe_ctx->stream->signal) {
@@ -3421,7 +3398,7 @@ static enum dc_status dc_link_update_sst_payload(struct pipe_ctx *pipe_ctx,
 {
 	struct dc_stream_state *stream = pipe_ctx->stream;
 	struct dc_link *link = stream->link;
-	struct hpo_dp_link_encoder *hpo_dp_link_encoder = link->hpo_dp_link_enc;
+	struct hpo_dp_link_encoder *hpo_dp_link_encoder = pipe_ctx->link_res.hpo_dp_link_enc;
 	struct hpo_dp_stream_encoder *hpo_dp_stream_encoder = pipe_ctx->stream_res.hpo_dp_stream_enc;
 	struct link_mst_stream_allocation_table proposed_table = {0};
 	struct fixed31_32 avg_time_slots_per_mtp;
@@ -3503,7 +3480,7 @@ enum dc_status dc_link_allocate_mst_payload(struct pipe_ctx *pipe_ctx)
 	struct link_encoder *link_encoder = NULL;
 	struct stream_encoder *stream_encoder = pipe_ctx->stream_res.stream_enc;
 #if defined(CONFIG_DRM_AMD_DC_DCN)
-	struct hpo_dp_link_encoder *hpo_dp_link_encoder = link->hpo_dp_link_enc;
+	struct hpo_dp_link_encoder *hpo_dp_link_encoder = pipe_ctx->link_res.hpo_dp_link_enc;
 	struct hpo_dp_stream_encoder *hpo_dp_stream_encoder = pipe_ctx->stream_res.hpo_dp_stream_enc;
 #endif
 	struct dp_mst_stream_allocation_table proposed_table = {0};
@@ -3833,7 +3810,7 @@ static enum dc_status deallocate_mst_payload(struct pipe_ctx *pipe_ctx)
 	struct link_encoder *link_encoder = NULL;
 	struct stream_encoder *stream_encoder = pipe_ctx->stream_res.stream_enc;
 #if defined(CONFIG_DRM_AMD_DC_DCN)
-	struct hpo_dp_link_encoder *hpo_dp_link_encoder = link->hpo_dp_link_enc;
+	struct hpo_dp_link_encoder *hpo_dp_link_encoder = pipe_ctx->link_res.hpo_dp_link_enc;
 	struct hpo_dp_stream_encoder *hpo_dp_stream_encoder = pipe_ctx->stream_res.hpo_dp_stream_enc;
 #endif
 	struct dp_mst_stream_allocation_table proposed_table = {0};
@@ -4009,12 +3986,9 @@ static void update_psp_stream_config(struct pipe_ctx *pipe_ctx, bool dpms_off)
 		config.dig_be = pipe_ctx->stream->link->link_enc_hw_inst;
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 		config.stream_enc_idx = pipe_ctx->stream_res.stream_enc->id - ENGINE_ID_DIGA;
-		
+
 		if (pipe_ctx->stream->link->ep_type == DISPLAY_ENDPOINT_PHY ||
 				pipe_ctx->stream->link->ep_type == DISPLAY_ENDPOINT_USB4_DPIA) {
-			link_enc = pipe_ctx->stream->link->link_enc;
-			config.dio_output_type = pipe_ctx->stream->link->ep_type;
-			config.dio_output_idx = link_enc->transmitter - TRANSMITTER_UNIPHY_A;
 			if (pipe_ctx->stream->link->ep_type == DISPLAY_ENDPOINT_PHY)
 				link_enc = pipe_ctx->stream->link->link_enc;
 			else if (pipe_ctx->stream->link->ep_type == DISPLAY_ENDPOINT_USB4_DPIA)
@@ -4081,7 +4055,8 @@ static void update_psp_stream_config(struct pipe_ctx *pipe_ctx, bool dpms_off)
 			config.link_enc_idx = link_enc->transmitter - TRANSMITTER_UNIPHY_A;
 		if (is_dp_128b_132b_signal(pipe_ctx)) {
 			config.stream_enc_idx = pipe_ctx->stream_res.hpo_dp_stream_enc->id - ENGINE_ID_HPO_DP_0;
-			config.link_enc_idx = pipe_ctx->stream->link->hpo_dp_link_enc->inst;
+
+			config.link_enc_idx = pipe_ctx->link_res.hpo_dp_link_enc->inst;
 			config.dp2_enabled = 1;
 		}
 #endif
@@ -4112,7 +4087,7 @@ static void fpga_dp_hpo_enable_link_and_stream(struct dc_state *state, struct pi
 	stream->link->cur_link_settings = link_settings;
 
 	/*  Enable clock, Configure lane count, and Enable Link Encoder*/
-	enable_dp_hpo_output(stream->link, &stream->link->cur_link_settings);
+	enable_dp_hpo_output(stream->link, &pipe_ctx->link_res, &stream->link->cur_link_settings);
 
 #ifdef DIAGS_BUILD
 	/* Workaround for FPGA HPO capture DP link data:
@@ -4162,12 +4137,12 @@ static void fpga_dp_hpo_enable_link_and_stream(struct dc_state *state, struct pi
 		proposed_table.stream_allocations[0].hpo_dp_stream_enc = pipe_ctx->stream_res.hpo_dp_stream_enc;
 	}
 
-	stream->link->hpo_dp_link_enc->funcs->update_stream_allocation_table(
-			stream->link->hpo_dp_link_enc,
+	pipe_ctx->link_res.hpo_dp_link_enc->funcs->update_stream_allocation_table(
+			pipe_ctx->link_res.hpo_dp_link_enc,
 			&proposed_table);
 
-	stream->link->hpo_dp_link_enc->funcs->set_throttled_vcp_size(
-			stream->link->hpo_dp_link_enc,
+	pipe_ctx->link_res.hpo_dp_link_enc->funcs->set_throttled_vcp_size(
+			pipe_ctx->link_res.hpo_dp_link_enc,
 			pipe_ctx->stream_res.hpo_dp_stream_enc->inst,
 			avg_time_slots_per_mtp);
 
@@ -4356,7 +4331,8 @@ void core_link_enable_stream(
 			if (status != DC_FAIL_DP_LINK_TRAINING ||
 					pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST) {
 				if (false == stream->link->link_status.link_active)
-					disable_link(stream->link, pipe_ctx->stream->signal);
+					disable_link(stream->link, &pipe_ctx->link_res,
+							pipe_ctx->stream->signal);
 				BREAK_TO_DEBUGGER();
 				return;
 			}
@@ -4505,14 +4481,14 @@ void core_link_disable_stream(struct pipe_ctx *pipe_ctx)
 		 * state machine.
 		 * In DP2 or MST mode, our encoder will stay video active
 		 */
-		disable_link(pipe_ctx->stream->link, pipe_ctx->stream->signal);
+		disable_link(pipe_ctx->stream->link, &pipe_ctx->link_res, pipe_ctx->stream->signal);
 		dc->hwss.disable_stream(pipe_ctx);
 	} else {
 		dc->hwss.disable_stream(pipe_ctx);
-		disable_link(pipe_ctx->stream->link, pipe_ctx->stream->signal);
+		disable_link(pipe_ctx->stream->link, &pipe_ctx->link_res, pipe_ctx->stream->signal);
 	}
 #else
-	disable_link(pipe_ctx->stream->link, pipe_ctx->stream->signal);
+	disable_link(pipe_ctx->stream->link, &pipe_ctx->link_res, pipe_ctx->stream->signal);
 
 	dc->hwss.disable_stream(pipe_ctx);
 #endif
@@ -4595,16 +4571,22 @@ void dc_link_set_drive_settings(struct dc *dc,
 {
 
 	int i;
+	struct pipe_ctx *pipe = NULL;
+	const struct link_resource *link_res;
 
-	for (i = 0; i < dc->link_count; i++) {
-		if (dc->links[i] == link)
-			break;
-	}
+	link_res = dc_link_get_cur_link_res(link);
 
-	if (i >= dc->link_count)
+	for (i = 0; i < MAX_PIPES; i++) {
+		pipe = &dc->current_state->res_ctx.pipe_ctx[i];
+		if (pipe->stream && pipe->stream->link) {
+			if (pipe->stream->link == link)
+				break;
+		}
+	}
+	if (pipe && link_res)
+		dc_link_dp_set_drive_settings(pipe->stream->link, link_res, lt_settings);
+	else
 		ASSERT_CRITICAL(false);
-
-	dc_link_dp_set_drive_settings(dc->links[i], lt_settings);
 }
 
 void dc_link_set_preferred_link_settings(struct dc *dc,
@@ -4665,11 +4647,9 @@ void dc_link_set_preferred_training_settings(struct dc *dc,
 	if (link_setting != NULL) {
 		link->preferred_link_setting = *link_setting;
 #if defined(CONFIG_DRM_AMD_DC_DCN)
-		if (dp_get_link_encoding_format(link_setting) ==
-				DP_128b_132b_ENCODING && !link->hpo_dp_link_enc) {
-			if (!add_dp_hpo_link_encoder_to_link(link))
-				memset(&link->preferred_link_setting, 0, sizeof(link->preferred_link_setting));
-		}
+		if (dp_get_link_encoding_format(link_setting) == DP_128b_132b_ENCODING)
+			/* TODO: add dc update for acquiring link res  */
+			skip_immediate_retrain = true;
 #endif
 	} else {
 		link->preferred_link_setting.lane_count = LANE_COUNT_UNKNOWN;
@@ -4796,6 +4776,9 @@ void dc_link_overwrite_extended_receiver_cap(
 
 bool dc_link_is_fec_supported(const struct dc_link *link)
 {
+	/* TODO - use asic cap instead of link_enc->features
+	 * we no longer know which link enc to use for this link before commit
+	 */
 	struct link_encoder *link_enc = NULL;
 
 	/* Links supporting dynamically assigned link encoder will be assigned next
@@ -4890,3 +4873,125 @@ uint32_t dc_bandwidth_in_kbps_from_timing(
 	return kbps;
 
 }
+
+const struct link_resource *dc_link_get_cur_link_res(const struct dc_link *link)
+{
+	int i;
+	struct pipe_ctx *pipe = NULL;
+	const struct link_resource *link_res = NULL;
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		pipe = &link->dc->current_state->res_ctx.pipe_ctx[i];
+		if (pipe->stream && pipe->stream->link && pipe->top_pipe == NULL) {
+			if (pipe->stream->link == link) {
+				link_res = &pipe->link_res;
+				break;
+			}
+		}
+	}
+
+	return link_res;
+}
+
+/**
+ * dc_get_cur_link_res_map() - take a snapshot of current link resource allocation state
+ * @dc: pointer to dc of the dm calling this
+ * @map: a dc link resource snapshot defined internally to dc.
+ *
+ * DM needs to capture a snapshot of current link resource allocation mapping
+ * and store it in its persistent storage.
+ *
+ * Some of the link resource is using first come first serve policy.
+ * The allocation mapping depends on original hotplug order. This information
+ * is lost after driver is loaded next time. The snapshot is used in order to
+ * restore link resource to its previous state so user will get consistent
+ * link capability allocation across reboot.
+ *
+ * Return: none (void function)
+ *
+ */
+void dc_get_cur_link_res_map(const struct dc *dc, uint32_t *map)
+{
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+	struct dc_link *link;
+	uint8_t i;
+	uint32_t hpo_dp_recycle_map = 0;
+
+	*map = 0;
+
+	if (dc->caps.dp_hpo) {
+		for (i = 0; i < dc->caps.max_links; i++) {
+			link = dc->links[i];
+			if (link->link_status.link_active &&
+					dp_get_link_encoding_format(&link->reported_link_cap) == DP_128b_132b_ENCODING &&
+					dp_get_link_encoding_format(&link->cur_link_settings) != DP_128b_132b_ENCODING)
+				/* hpo dp link encoder is considered as recycled, when RX reports 128b/132b encoding capability
+				 * but current link doesn't use it.
+				 */
+				hpo_dp_recycle_map |= (1 << i);
+		}
+		*map |= (hpo_dp_recycle_map << LINK_RES_HPO_DP_REC_MAP__SHIFT);
+	}
+#endif
+}
+
+/**
+ * dc_restore_link_res_map() - restore link resource allocation state from a snapshot
+ * @dc: pointer to dc of the dm calling this
+ * @map: a dc link resource snapshot defined internally to dc.
+ *
+ * DM needs to call this function after initial link detection on boot and
+ * before first commit streams to restore link resource allocation state
+ * from previous boot session.
+ *
+ * Some of the link resource is using first come first serve policy.
+ * The allocation mapping depends on original hotplug order. This information
+ * is lost after driver is loaded next time. The snapshot is used in order to
+ * restore link resource to its previous state so user will get consistent
+ * link capability allocation across reboot.
+ *
+ * Return: none (void function)
+ *
+ */
+void dc_restore_link_res_map(const struct dc *dc, uint32_t *map)
+{
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+	struct dc_link *link;
+	uint8_t i;
+	unsigned int available_hpo_dp_count;
+	uint32_t hpo_dp_recycle_map = (*map & LINK_RES_HPO_DP_REC_MAP__MASK)
+			>> LINK_RES_HPO_DP_REC_MAP__SHIFT;
+
+	if (dc->caps.dp_hpo) {
+		available_hpo_dp_count = dc->res_pool->hpo_dp_link_enc_count;
+		/* remove excess 128b/132b encoding support for not recycled links */
+		for (i = 0; i < dc->caps.max_links; i++) {
+			if ((hpo_dp_recycle_map & (1 << i)) == 0) {
+				link = dc->links[i];
+				if (link->type != dc_connection_none &&
+						dp_get_link_encoding_format(&link->verified_link_cap) == DP_128b_132b_ENCODING) {
+					if (available_hpo_dp_count > 0)
+						available_hpo_dp_count--;
+					else
+						/* remove 128b/132b encoding capability by limiting verified link rate to HBR3 */
+						link->verified_link_cap.link_rate = LINK_RATE_HIGH3;
+				}
+			}
+		}
+		/* remove excess 128b/132b encoding support for recycled links */
+		for (i = 0; i < dc->caps.max_links; i++) {
+			if ((hpo_dp_recycle_map & (1 << i)) != 0) {
+				link = dc->links[i];
+				if (link->type != dc_connection_none &&
+						dp_get_link_encoding_format(&link->verified_link_cap) == DP_128b_132b_ENCODING) {
+					if (available_hpo_dp_count > 0)
+						available_hpo_dp_count--;
+					else
+						/* remove 128b/132b encoding capability by limiting verified link rate to HBR3 */
+						link->verified_link_cap.link_rate = LINK_RATE_HIGH3;
+				}
+			}
+		}
+	}
+#endif
+}
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index 8a35370da867..05e216524370 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -1251,6 +1251,7 @@ bool dp_is_max_vs_reached(
 
 static bool perform_post_lt_adj_req_sequence(
 	struct dc_link *link,
+	const struct link_resource *link_res,
 	struct link_training_settings *lt_settings)
 {
 	enum dc_lane_count lane_count =
@@ -1314,6 +1315,7 @@ static bool perform_post_lt_adj_req_sequence(
 						lt_settings->hw_lane_settings, lt_settings->dpcd_lane_settings);
 
 				dc_link_dp_set_drive_settings(link,
+						link_res,
 						lt_settings);
 				break;
 			}
@@ -1388,6 +1390,7 @@ enum link_training_result dp_get_cr_failure(enum dc_lane_count ln_count,
 
 static enum link_training_result perform_channel_equalization_sequence(
 	struct dc_link *link,
+	const struct link_resource *link_res,
 	struct link_training_settings *lt_settings,
 	uint32_t offset)
 {
@@ -1410,12 +1413,12 @@ static enum link_training_result perform_channel_equalization_sequence(
 		tr_pattern = DP_TRAINING_PATTERN_SEQUENCE_4;
 #endif
 
-	dp_set_hw_training_pattern(link, tr_pattern, offset);
+	dp_set_hw_training_pattern(link, link_res, tr_pattern, offset);
 
 	for (retries_ch_eq = 0; retries_ch_eq <= LINK_TRAINING_MAX_RETRY_COUNT;
 		retries_ch_eq++) {
 
-		dp_set_hw_lane_settings(link, lt_settings, offset);
+		dp_set_hw_lane_settings(link, link_res, lt_settings, offset);
 
 		/* 2. update DPCD*/
 		if (!retries_ch_eq)
@@ -1479,18 +1482,20 @@ static enum link_training_result perform_channel_equalization_sequence(
 }
 
 static void start_clock_recovery_pattern_early(struct dc_link *link,
+		const struct link_resource *link_res,
 		struct link_training_settings *lt_settings,
 		uint32_t offset)
 {
 	DC_LOG_HW_LINK_TRAINING("%s\n GPU sends TPS1. Wait 400us.\n",
 			__func__);
-	dp_set_hw_training_pattern(link, lt_settings->pattern_for_cr, offset);
-	dp_set_hw_lane_settings(link, lt_settings, offset);
+	dp_set_hw_training_pattern(link, link_res, lt_settings->pattern_for_cr, offset);
+	dp_set_hw_lane_settings(link, link_res, lt_settings, offset);
 	udelay(400);
 }
 
 static enum link_training_result perform_clock_recovery_sequence(
 	struct dc_link *link,
+	const struct link_resource *link_res,
 	struct link_training_settings *lt_settings,
 	uint32_t offset)
 {
@@ -1506,7 +1511,7 @@ static enum link_training_result perform_clock_recovery_sequence(
 	retry_count = 0;
 
 	if (!link->ctx->dc->work_arounds.lt_early_cr_pattern)
-		dp_set_hw_training_pattern(link, lt_settings->pattern_for_cr, offset);
+		dp_set_hw_training_pattern(link, link_res, lt_settings->pattern_for_cr, offset);
 
 	/* najeeb - The synaptics MST hub can put the LT in
 	* infinite loop by switching the VS
@@ -1523,6 +1528,7 @@ static enum link_training_result perform_clock_recovery_sequence(
 		/* 1. call HWSS to set lane settings*/
 		dp_set_hw_lane_settings(
 				link,
+				link_res,
 				lt_settings,
 				offset);
 
@@ -1544,9 +1550,6 @@ static enum link_training_result perform_clock_recovery_sequence(
 		/* 3. wait receiver to lock-on*/
 		wait_time_microsec = lt_settings->cr_pattern_time;
 
-		if (link->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT)
-			wait_time_microsec = TRAINING_AUX_RD_INTERVAL;
-
 		if (link->dc->debug.apply_vendor_specific_lttpr_wa &&
 				(link->chip_caps & EXT_DISPLAY_PATH_CAPS__DP_FIXED_VS_EN)) {
 			wait_time_microsec = 16000;
@@ -1624,13 +1627,14 @@ static enum link_training_result perform_clock_recovery_sequence(
 
 static inline enum link_training_result dp_transition_to_video_idle(
 	struct dc_link *link,
+	const struct link_resource *link_res,
 	struct link_training_settings *lt_settings,
 	enum link_training_result status)
 {
 	union lane_count_set lane_count_set = {0};
 
 	/* 4. mainlink output idle pattern*/
-	dp_set_hw_test_pattern(link, DP_TEST_PATTERN_VIDEO_MODE, NULL, 0);
+	dp_set_hw_test_pattern(link, link_res, DP_TEST_PATTERN_VIDEO_MODE, NULL, 0);
 
 	/*
 	 * 5. post training adjust if required
@@ -1654,7 +1658,7 @@ static inline enum link_training_result dp_transition_to_video_idle(
 	}
 
 	if (status == LINK_TRAINING_SUCCESS &&
-		perform_post_lt_adj_req_sequence(link, lt_settings) == false)
+		perform_post_lt_adj_req_sequence(link, link_res, lt_settings) == false)
 		status = LINK_TRAINING_LQA_FAIL;
 
 	lane_count_set.bits.LANE_COUNT_SET = lt_settings->link_settings.lane_count;
@@ -2097,10 +2101,11 @@ static void print_status_message(
 
 void dc_link_dp_set_drive_settings(
 	struct dc_link *link,
+	const struct link_resource *link_res,
 	struct link_training_settings *lt_settings)
 {
 	/* program ASIC PHY settings*/
-	dp_set_hw_lane_settings(link, lt_settings, DPRX);
+	dp_set_hw_lane_settings(link, link_res, lt_settings, DPRX);
 
 	dp_hw_to_dpcd_lane_settings(lt_settings,
 			lt_settings->hw_lane_settings, lt_settings->dpcd_lane_settings);
@@ -2111,6 +2116,7 @@ void dc_link_dp_set_drive_settings(
 
 bool dc_link_dp_perform_link_training_skip_aux(
 	struct dc_link *link,
+	const struct link_resource *link_res,
 	const struct dc_link_settings *link_setting)
 {
 	struct link_training_settings lt_settings = {0};
@@ -2127,10 +2133,10 @@ bool dc_link_dp_perform_link_training_skip_aux(
 	/* 1. Perform_clock_recovery_sequence. */
 
 	/* transmit training pattern for clock recovery */
-	dp_set_hw_training_pattern(link, lt_settings.pattern_for_cr, DPRX);
+	dp_set_hw_training_pattern(link, link_res, lt_settings.pattern_for_cr, DPRX);
 
 	/* call HWSS to set lane settings*/
-	dp_set_hw_lane_settings(link, &lt_settings, DPRX);
+	dp_set_hw_lane_settings(link, link_res, &lt_settings, DPRX);
 
 	/* wait receiver to lock-on*/
 	dp_wait_for_training_aux_rd_interval(link, lt_settings.cr_pattern_time);
@@ -2138,10 +2144,10 @@ bool dc_link_dp_perform_link_training_skip_aux(
 	/* 2. Perform_channel_equalization_sequence. */
 
 	/* transmit training pattern for channel equalization. */
-	dp_set_hw_training_pattern(link, lt_settings.pattern_for_eq, DPRX);
+	dp_set_hw_training_pattern(link, link_res, lt_settings.pattern_for_eq, DPRX);
 
 	/* call HWSS to set lane settings*/
-	dp_set_hw_lane_settings(link, &lt_settings, DPRX);
+	dp_set_hw_lane_settings(link, link_res, &lt_settings, DPRX);
 
 	/* wait receiver to lock-on. */
 	dp_wait_for_training_aux_rd_interval(link, lt_settings.eq_pattern_time);
@@ -2149,7 +2155,7 @@ bool dc_link_dp_perform_link_training_skip_aux(
 	/* 3. Perform_link_training_int. */
 
 	/* Mainlink output idle pattern. */
-	dp_set_hw_test_pattern(link, DP_TEST_PATTERN_VIDEO_MODE, NULL, 0);
+	dp_set_hw_test_pattern(link, link_res, DP_TEST_PATTERN_VIDEO_MODE, NULL, 0);
 
 	print_status_message(link, &lt_settings, LINK_TRAINING_SUCCESS);
 
@@ -2230,6 +2236,7 @@ static void dpcd_128b_132b_get_aux_rd_interval(struct dc_link *link,
 
 static enum link_training_result dp_perform_128b_132b_channel_eq_done_sequence(
 		struct dc_link *link,
+		const struct link_resource *link_res,
 		struct link_training_settings *lt_settings)
 {
 	uint8_t loop_count;
@@ -2241,7 +2248,7 @@ static enum link_training_result dp_perform_128b_132b_channel_eq_done_sequence(
 	union lane_adjust dpcd_lane_adjust[LANE_COUNT_DP_MAX] = {0};
 
 	/* Transmit 128b/132b_TPS1 over Main-Link */
-	dp_set_hw_training_pattern(link, lt_settings->pattern_for_cr, DPRX);
+	dp_set_hw_training_pattern(link, link_res, lt_settings->pattern_for_cr, DPRX);
 	/* Set TRAINING_PATTERN_SET to 01h */
 	dpcd_set_training_pattern(link, lt_settings->pattern_for_cr);
 
@@ -2251,8 +2258,8 @@ static enum link_training_result dp_perform_128b_132b_channel_eq_done_sequence(
 			&dpcd_lane_status_updated, dpcd_lane_adjust, DPRX);
 	dp_decide_lane_settings(lt_settings, dpcd_lane_adjust,
 			lt_settings->hw_lane_settings, lt_settings->dpcd_lane_settings);
-	dp_set_hw_lane_settings(link, lt_settings, DPRX);
-	dp_set_hw_training_pattern(link, lt_settings->pattern_for_eq, DPRX);
+	dp_set_hw_lane_settings(link, link_res, lt_settings, DPRX);
+	dp_set_hw_training_pattern(link, link_res, lt_settings->pattern_for_eq, DPRX);
 
 	/* Set loop counter to start from 1 */
 	loop_count = 1;
@@ -2279,7 +2286,7 @@ static enum link_training_result dp_perform_128b_132b_channel_eq_done_sequence(
 		} else if (dpcd_lane_status_updated.bits.LT_FAILED_128b_132b) {
 			status = DP_128b_132b_LT_FAILED;
 		} else {
-			dp_set_hw_lane_settings(link, lt_settings, DPRX);
+			dp_set_hw_lane_settings(link, link_res, lt_settings, DPRX);
 			dpcd_set_lane_settings(link, lt_settings, DPRX);
 		}
 		loop_count++;
@@ -2308,6 +2315,7 @@ static enum link_training_result dp_perform_128b_132b_channel_eq_done_sequence(
 
 static enum link_training_result dp_perform_128b_132b_cds_done_sequence(
 		struct dc_link *link,
+		const struct link_resource *link_res,
 		struct link_training_settings *lt_settings)
 {
 	/* Assumption: assume hardware has transmitted eq pattern */
@@ -2344,6 +2352,7 @@ static enum link_training_result dp_perform_128b_132b_cds_done_sequence(
 
 static enum link_training_result dp_perform_8b_10b_link_training(
 		struct dc_link *link,
+		const struct link_resource *link_res,
 		struct link_training_settings *lt_settings)
 {
 	enum link_training_result status = LINK_TRAINING_SUCCESS;
@@ -2353,7 +2362,7 @@ static enum link_training_result dp_perform_8b_10b_link_training(
 	uint8_t lane = 0;
 
 	if (link->ctx->dc->work_arounds.lt_early_cr_pattern)
-		start_clock_recovery_pattern_early(link, lt_settings, DPRX);
+		start_clock_recovery_pattern_early(link, link_res, lt_settings, DPRX);
 
 	/* 1. set link rate, lane count and spread. */
 	dpcd_set_link_settings(link, lt_settings);
@@ -2367,12 +2376,13 @@ static enum link_training_result dp_perform_8b_10b_link_training(
 
 		for (repeater_id = repeater_cnt; (repeater_id > 0 && status == LINK_TRAINING_SUCCESS);
 				repeater_id--) {
-			status = perform_clock_recovery_sequence(link, lt_settings, repeater_id);
+			status = perform_clock_recovery_sequence(link, link_res, lt_settings, repeater_id);
 
 			if (status != LINK_TRAINING_SUCCESS)
 				break;
 
 			status = perform_channel_equalization_sequence(link,
+					link_res,
 					lt_settings,
 					repeater_id);
 
@@ -2387,9 +2397,10 @@ static enum link_training_result dp_perform_8b_10b_link_training(
 	}
 
 	if (status == LINK_TRAINING_SUCCESS) {
-		status = perform_clock_recovery_sequence(link, lt_settings, DPRX);
+		status = perform_clock_recovery_sequence(link, link_res, lt_settings, DPRX);
 	if (status == LINK_TRAINING_SUCCESS) {
 		status = perform_channel_equalization_sequence(link,
+					link_res,
 					lt_settings,
 					DPRX);
 		}
@@ -2401,6 +2412,7 @@ static enum link_training_result dp_perform_8b_10b_link_training(
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 static enum link_training_result dp_perform_128b_132b_link_training(
 		struct dc_link *link,
+		const struct link_resource *link_res,
 		struct link_training_settings *lt_settings)
 {
 	enum link_training_result result = LINK_TRAINING_SUCCESS;
@@ -2412,23 +2424,358 @@ static enum link_training_result dp_perform_128b_132b_link_training(
 		decide_8b_10b_training_settings(link,
 				&lt_settings->link_settings,
 				&legacy_settings);
-		return dp_perform_8b_10b_link_training(link, &legacy_settings);
+		return dp_perform_8b_10b_link_training(link, link_res, &legacy_settings);
 	}
 
 	dpcd_set_link_settings(link, lt_settings);
 
 	if (result == LINK_TRAINING_SUCCESS)
-		result = dp_perform_128b_132b_channel_eq_done_sequence(link, lt_settings);
+		result = dp_perform_128b_132b_channel_eq_done_sequence(link, link_res, lt_settings);
 
 	if (result == LINK_TRAINING_SUCCESS)
-		result = dp_perform_128b_132b_cds_done_sequence(link, lt_settings);
+		result = dp_perform_128b_132b_cds_done_sequence(link, link_res, lt_settings);
 
 	return result;
 }
 #endif
 
+static enum link_training_result dc_link_dp_perform_fixed_vs_pe_training_sequence(
+	struct dc_link *link,
+	const struct link_resource *link_res,
+	struct link_training_settings *lt_settings)
+{
+	const uint8_t vendor_lttpr_write_data_reset[4] = {0x1, 0x50, 0x63, 0xFF};
+	const uint8_t offset = dp_convert_to_count(
+			link->dpcd_caps.lttpr_caps.phy_repeater_cnt);
+	const uint8_t vendor_lttpr_write_data_intercept_en[4] = {0x1, 0x55, 0x63, 0x0};
+	const uint8_t vendor_lttpr_write_data_intercept_dis[4] = {0x1, 0x55, 0x63, 0x68};
+	uint8_t vendor_lttpr_write_data_vs[4] = {0x1, 0x51, 0x63, 0x0};
+	uint8_t vendor_lttpr_write_data_pe[4] = {0x1, 0x52, 0x63, 0x0};
+	uint32_t vendor_lttpr_write_address = 0xF004F;
+	enum link_training_result status = LINK_TRAINING_SUCCESS;
+	uint8_t lane = 0;
+	union down_spread_ctrl downspread = {0};
+	union lane_count_set lane_count_set = {0};
+	uint8_t toggle_rate;
+	uint8_t rate;
+
+	/* Only 8b/10b is supported */
+	ASSERT(dp_get_link_encoding_format(&lt_settings->link_settings) ==
+			DP_8b_10b_ENCODING);
+
+	if (offset != 0xFF) {
+		vendor_lttpr_write_address +=
+				((DP_REPEATER_CONFIGURATION_AND_STATUS_SIZE) * (offset - 1));
+	}
+
+	/* Vendor specific: Reset lane settings */
+	core_link_write_dpcd(
+			link,
+			vendor_lttpr_write_address,
+			&vendor_lttpr_write_data_reset[0],
+			sizeof(vendor_lttpr_write_data_reset));
+	core_link_write_dpcd(
+			link,
+			vendor_lttpr_write_address,
+			&vendor_lttpr_write_data_vs[0],
+			sizeof(vendor_lttpr_write_data_vs));
+	core_link_write_dpcd(
+			link,
+			vendor_lttpr_write_address,
+			&vendor_lttpr_write_data_pe[0],
+			sizeof(vendor_lttpr_write_data_pe));
+
+	/* Vendor specific: Enable intercept */
+	core_link_write_dpcd(
+			link,
+			vendor_lttpr_write_address,
+			&vendor_lttpr_write_data_intercept_en[0],
+			sizeof(vendor_lttpr_write_data_intercept_en));
+
+	/* 1. set link rate, lane count and spread. */
+
+	downspread.raw = (uint8_t)(lt_settings->link_settings.link_spread);
+
+	lane_count_set.bits.LANE_COUNT_SET =
+	lt_settings->link_settings.lane_count;
+
+	lane_count_set.bits.ENHANCED_FRAMING = lt_settings->enhanced_framing;
+	lane_count_set.bits.POST_LT_ADJ_REQ_GRANTED = 0;
+
+
+	if (lt_settings->pattern_for_eq < DP_TRAINING_PATTERN_SEQUENCE_4) {
+		lane_count_set.bits.POST_LT_ADJ_REQ_GRANTED =
+				link->dpcd_caps.max_ln_count.bits.POST_LT_ADJ_REQ_SUPPORTED;
+	}
+
+	core_link_write_dpcd(link, DP_DOWNSPREAD_CTRL,
+		&downspread.raw, sizeof(downspread));
+
+	core_link_write_dpcd(link, DP_LANE_COUNT_SET,
+		&lane_count_set.raw, 1);
+
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+	rate = get_dpcd_link_rate(&lt_settings->link_settings);
+#else
+	rate = (uint8_t) (lt_settings->link_settings.link_rate);
+#endif
+
+	/* Vendor specific: Toggle link rate */
+	toggle_rate = (rate == 0x6) ? 0xA : 0x6;
+
+	if (link->vendor_specific_lttpr_link_rate_wa == rate) {
+		core_link_write_dpcd(
+				link,
+				DP_LINK_BW_SET,
+				&toggle_rate,
+				1);
+	}
+
+	link->vendor_specific_lttpr_link_rate_wa = rate;
+
+	core_link_write_dpcd(link, DP_LINK_BW_SET, &rate, 1);
+
+	DC_LOG_HW_LINK_TRAINING("%s\n %x rate = %x\n %x lane = %x framing = %x\n %x spread = %x\n",
+		__func__,
+		DP_LINK_BW_SET,
+		lt_settings->link_settings.link_rate,
+		DP_LANE_COUNT_SET,
+		lt_settings->link_settings.lane_count,
+		lt_settings->enhanced_framing,
+		DP_DOWNSPREAD_CTRL,
+		lt_settings->link_settings.link_spread);
+
+	/* 2. Perform link training */
+
+	/* Perform Clock Recovery Sequence */
+	if (status == LINK_TRAINING_SUCCESS) {
+		uint32_t retries_cr;
+		uint32_t retry_count;
+		uint32_t wait_time_microsec;
+		enum dc_lane_count lane_count = lt_settings->link_settings.lane_count;
+		union lane_status dpcd_lane_status[LANE_COUNT_DP_MAX];
+		union lane_align_status_updated dpcd_lane_status_updated;
+		union lane_adjust dpcd_lane_adjust[LANE_COUNT_DP_MAX] = {0};
+
+		retries_cr = 0;
+		retry_count = 0;
+
+		while ((retries_cr < LINK_TRAINING_MAX_RETRY_COUNT) &&
+			(retry_count < LINK_TRAINING_MAX_CR_RETRY)) {
+
+			memset(&dpcd_lane_status, '\0', sizeof(dpcd_lane_status));
+			memset(&dpcd_lane_status_updated, '\0',
+			sizeof(dpcd_lane_status_updated));
+
+			/* 1. call HWSS to set lane settings */
+			dp_set_hw_lane_settings(
+					link,
+					link_res,
+					lt_settings,
+					0);
+
+			/* 2. update DPCD of the receiver */
+			if (!retry_count) {
+				/* EPR #361076 - write as a 5-byte burst,
+				 * but only for the 1-st iteration.
+				 */
+				dpcd_set_lt_pattern_and_lane_settings(
+						link,
+						lt_settings,
+						lt_settings->pattern_for_cr,
+						0);
+				/* Vendor specific: Disable intercept */
+				core_link_write_dpcd(
+						link,
+						vendor_lttpr_write_address,
+						&vendor_lttpr_write_data_intercept_dis[0],
+						sizeof(vendor_lttpr_write_data_intercept_dis));
+			} else {
+				vendor_lttpr_write_data_vs[3] = 0;
+				vendor_lttpr_write_data_pe[3] = 0;
+
+				for (lane = 0; lane < lane_count; lane++) {
+					vendor_lttpr_write_data_vs[3] |=
+							lt_settings->dpcd_lane_settings[lane].bits.VOLTAGE_SWING_SET << (2 * lane);
+					vendor_lttpr_write_data_pe[3] |=
+							lt_settings->dpcd_lane_settings[lane].bits.PRE_EMPHASIS_SET << (2 * lane);
+				}
+
+				/* Vendor specific: Update VS and PE to DPRX requested value */
+				core_link_write_dpcd(
+						link,
+						vendor_lttpr_write_address,
+						&vendor_lttpr_write_data_vs[0],
+						sizeof(vendor_lttpr_write_data_vs));
+				core_link_write_dpcd(
+						link,
+						vendor_lttpr_write_address,
+						&vendor_lttpr_write_data_pe[0],
+						sizeof(vendor_lttpr_write_data_pe));
+
+				dpcd_set_lane_settings(
+						link,
+						lt_settings,
+						0);
+			}
+
+			/* 3. wait receiver to lock-on*/
+			wait_time_microsec = lt_settings->cr_pattern_time;
+
+			dp_wait_for_training_aux_rd_interval(
+					link,
+					wait_time_microsec);
+
+			/* 4. Read lane status and requested drive
+			 * settings as set by the sink
+			 */
+			dp_get_lane_status_and_lane_adjust(
+					link,
+					lt_settings,
+					dpcd_lane_status,
+					&dpcd_lane_status_updated,
+					dpcd_lane_adjust,
+					0);
+
+			/* 5. check CR done*/
+			if (dp_is_cr_done(lane_count, dpcd_lane_status)) {
+				status = LINK_TRAINING_SUCCESS;
+				break;
+			}
+
+			/* 6. max VS reached*/
+			if (dp_is_max_vs_reached(lt_settings))
+				break;
+
+			/* 7. same lane settings */
+			/* Note: settings are the same for all lanes,
+			 * so comparing first lane is sufficient
+			 */
+			if (lt_settings->dpcd_lane_settings[0].bits.VOLTAGE_SWING_SET ==
+					dpcd_lane_adjust[0].bits.VOLTAGE_SWING_LANE)
+				retries_cr++;
+			else
+				retries_cr = 0;
+
+			/* 8. update VS/PE/PC2 in lt_settings*/
+			dp_decide_lane_settings(lt_settings, dpcd_lane_adjust,
+					lt_settings->hw_lane_settings, lt_settings->dpcd_lane_settings);
+			retry_count++;
+		}
+
+		if (retry_count >= LINK_TRAINING_MAX_CR_RETRY) {
+			ASSERT(0);
+			DC_LOG_ERROR("%s: Link Training Error, could not get CR after %d tries. Possibly voltage swing issue",
+				__func__,
+				LINK_TRAINING_MAX_CR_RETRY);
+
+		}
+
+		status = dp_get_cr_failure(lane_count, dpcd_lane_status);
+	}
+
+	/* Perform Channel EQ Sequence */
+	if (status == LINK_TRAINING_SUCCESS) {
+		enum dc_dp_training_pattern tr_pattern;
+		uint32_t retries_ch_eq;
+		uint32_t wait_time_microsec;
+		enum dc_lane_count lane_count = lt_settings->link_settings.lane_count;
+		union lane_align_status_updated dpcd_lane_status_updated = {0};
+		union lane_status dpcd_lane_status[LANE_COUNT_DP_MAX] = {0};
+		union lane_adjust dpcd_lane_adjust[LANE_COUNT_DP_MAX] = {0};
+
+		/* Note: also check that TPS4 is a supported feature*/
+		tr_pattern = lt_settings->pattern_for_eq;
+
+		dp_set_hw_training_pattern(link, link_res, tr_pattern, 0);
+
+		status = LINK_TRAINING_EQ_FAIL_EQ;
+
+		for (retries_ch_eq = 0; retries_ch_eq <= LINK_TRAINING_MAX_RETRY_COUNT;
+			retries_ch_eq++) {
+
+			dp_set_hw_lane_settings(link, link_res, lt_settings, 0);
+
+			vendor_lttpr_write_data_vs[3] = 0;
+			vendor_lttpr_write_data_pe[3] = 0;
+
+			for (lane = 0; lane < lane_count; lane++) {
+				vendor_lttpr_write_data_vs[3] |=
+						lt_settings->dpcd_lane_settings[lane].bits.VOLTAGE_SWING_SET << (2 * lane);
+				vendor_lttpr_write_data_pe[3] |=
+						lt_settings->dpcd_lane_settings[lane].bits.PRE_EMPHASIS_SET << (2 * lane);
+			}
+
+			/* Vendor specific: Update VS and PE to DPRX requested value */
+			core_link_write_dpcd(
+					link,
+					vendor_lttpr_write_address,
+					&vendor_lttpr_write_data_vs[0],
+					sizeof(vendor_lttpr_write_data_vs));
+			core_link_write_dpcd(
+					link,
+					vendor_lttpr_write_address,
+					&vendor_lttpr_write_data_pe[0],
+					sizeof(vendor_lttpr_write_data_pe));
+
+			/* 2. update DPCD*/
+			if (!retries_ch_eq)
+				/* EPR #361076 - write as a 5-byte burst,
+				 * but only for the 1-st iteration
+				 */
+
+				dpcd_set_lt_pattern_and_lane_settings(
+					link,
+					lt_settings,
+					tr_pattern, 0);
+			else
+				dpcd_set_lane_settings(link, lt_settings, 0);
+
+			/* 3. wait for receiver to lock-on*/
+			wait_time_microsec = lt_settings->eq_pattern_time;
+
+			dp_wait_for_training_aux_rd_interval(
+					link,
+					wait_time_microsec);
+
+			/* 4. Read lane status and requested
+			 * drive settings as set by the sink
+			 */
+			dp_get_lane_status_and_lane_adjust(
+				link,
+				lt_settings,
+				dpcd_lane_status,
+				&dpcd_lane_status_updated,
+				dpcd_lane_adjust,
+				0);
+
+			/* 5. check CR done*/
+			if (!dp_is_cr_done(lane_count, dpcd_lane_status)) {
+				status = LINK_TRAINING_EQ_FAIL_CR;
+				break;
+			}
+
+			/* 6. check CHEQ done*/
+			if (dp_is_ch_eq_done(lane_count, dpcd_lane_status) &&
+					dp_is_symbol_locked(lane_count, dpcd_lane_status) &&
+					dp_is_interlane_aligned(dpcd_lane_status_updated)) {
+				status = LINK_TRAINING_SUCCESS;
+				break;
+			}
+
+			/* 7. update VS/PE/PC2 in lt_settings*/
+			dp_decide_lane_settings(lt_settings, dpcd_lane_adjust,
+					lt_settings->hw_lane_settings, lt_settings->dpcd_lane_settings);
+		}
+	}
+
+	return status;
+}
+
+
 enum link_training_result dc_link_dp_perform_link_training(
 	struct dc_link *link,
+	const struct link_resource *link_res,
 	const struct dc_link_settings *link_settings,
 	bool skip_video_pattern)
 {
@@ -2459,18 +2806,22 @@ enum link_training_result dc_link_dp_perform_link_training(
 
 	/* configure link prior to entering training mode */
 	dpcd_configure_lttpr_mode(link, &lt_settings);
-	dp_set_fec_ready(link, lt_settings.should_set_fec_ready);
+	dp_set_fec_ready(link, link_res, lt_settings.should_set_fec_ready);
 	dpcd_configure_channel_coding(link, &lt_settings);
 
 	/* enter training mode:
 	 * Per DP specs starting from here, DPTX device shall not issue
 	 * Non-LT AUX transactions inside training mode.
 	 */
-	if (encoding == DP_8b_10b_ENCODING)
-		status = dp_perform_8b_10b_link_training(link, &lt_settings);
+	if (!link->dc->debug.apply_vendor_specific_lttpr_wa &&
+			(link->chip_caps & EXT_DISPLAY_PATH_CAPS__DP_FIXED_VS_EN) &&
+			link->lttpr_mode == LTTPR_MODE_TRANSPARENT)
+		status = dc_link_dp_perform_fixed_vs_pe_training_sequence(link, link_res, &lt_settings);
+	else if (encoding == DP_8b_10b_ENCODING)
+		status = dp_perform_8b_10b_link_training(link, link_res, &lt_settings);
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 	else if (encoding == DP_128b_132b_ENCODING)
-		status = dp_perform_128b_132b_link_training(link, &lt_settings);
+		status = dp_perform_128b_132b_link_training(link, link_res, &lt_settings);
 #endif
 	else
 		ASSERT(0);
@@ -2488,6 +2839,7 @@ enum link_training_result dc_link_dp_perform_link_training(
 	/* switch to video idle */
 	if ((status == LINK_TRAINING_SUCCESS) || !skip_video_pattern)
 		status = dp_transition_to_video_idle(link,
+				link_res,
 				&lt_settings,
 				status);
 
@@ -2539,6 +2891,7 @@ bool perform_link_training_with_retries(
 
 		dp_enable_link_phy(
 			link,
+			&pipe_ctx->link_res,
 			signal,
 			pipe_ctx->clock_source->id,
 			&current_setting);
@@ -2566,23 +2919,24 @@ bool perform_link_training_with_retries(
 		dp_set_panel_mode(link, panel_mode);
 
 		if (link->aux_access_disabled) {
-			dc_link_dp_perform_link_training_skip_aux(link, &current_setting);
+			dc_link_dp_perform_link_training_skip_aux(link, &pipe_ctx->link_res, &current_setting);
 			return true;
 		} else {
 			/** @todo Consolidate USB4 DP and DPx.x training. */
 			if (link->ep_type == DISPLAY_ENDPOINT_USB4_DPIA) {
 				status = dc_link_dpia_perform_link_training(link,
-									    &current_setting,
-									    skip_video_pattern);
+						&pipe_ctx->link_res,
+						&current_setting,
+						skip_video_pattern);
 
 				/* Transmit idle pattern once training successful. */
 				if (status == LINK_TRAINING_SUCCESS)
-					dp_set_hw_test_pattern(link, DP_TEST_PATTERN_VIDEO_MODE,
-							       NULL, 0);
+					dp_set_hw_test_pattern(link, &pipe_ctx->link_res, DP_TEST_PATTERN_VIDEO_MODE, NULL, 0);
 			} else {
 				status = dc_link_dp_perform_link_training(link,
-									  &current_setting,
-									  skip_video_pattern);
+						&pipe_ctx->link_res,
+						&current_setting,
+						skip_video_pattern);
 			}
 
 			if (status == LINK_TRAINING_SUCCESS)
@@ -2597,7 +2951,7 @@ bool perform_link_training_with_retries(
 		DC_LOG_WARNING("%s: Link training attempt %u of %d failed\n",
 			__func__, (unsigned int)j + 1, attempts);
 
-		dp_disable_link_phy(link, signal);
+		dp_disable_link_phy(link, &pipe_ctx->link_res, signal);
 
 		/* Abort link training if failure due to sink being unplugged. */
 		if (status == LINK_TRAINING_ABORT) {
@@ -2646,12 +3000,13 @@ static enum clock_source_id get_clock_source_id(struct dc_link *link)
 	return dp_cs_id;
 }
 
-static void set_dp_mst_mode(struct dc_link *link, bool mst_enable)
+static void set_dp_mst_mode(struct dc_link *link, const struct link_resource *link_res,
+		bool mst_enable)
 {
 	if (mst_enable == false &&
 		link->type == dc_connection_mst_branch) {
 		/* Disable MST on link. Use only local sink. */
-		dp_disable_link_phy_mst(link, link->connector_signal);
+		dp_disable_link_phy_mst(link, link_res, link->connector_signal);
 
 		link->type = dc_connection_single;
 		link->local_sink = link->remote_sinks[0];
@@ -2662,7 +3017,7 @@ static void set_dp_mst_mode(struct dc_link *link, bool mst_enable)
 			link->type == dc_connection_single &&
 			link->remote_sinks[0] != NULL) {
 		/* Re-enable MST on link. */
-		dp_disable_link_phy(link, link->connector_signal);
+		dp_disable_link_phy(link, link_res, link->connector_signal);
 		dp_enable_mst_on_sink(link, true);
 
 		link->type = dc_connection_mst_branch;
@@ -2688,6 +3043,7 @@ bool dc_link_dp_sync_lt_begin(struct dc_link *link)
 
 enum link_training_result dc_link_dp_sync_lt_attempt(
     struct dc_link *link,
+    const struct link_resource *link_res,
     struct dc_link_settings *link_settings,
     struct dc_link_training_overrides *lt_overrides)
 {
@@ -2707,14 +3063,14 @@ enum link_training_result dc_link_dp_sync_lt_attempt(
 			&lt_settings);
 	/* Setup MST Mode */
 	if (lt_overrides->mst_enable)
-		set_dp_mst_mode(link, *lt_overrides->mst_enable);
+		set_dp_mst_mode(link, link_res, *lt_overrides->mst_enable);
 
 	/* Disable link */
-	dp_disable_link_phy(link, link->connector_signal);
+	dp_disable_link_phy(link, link_res, link->connector_signal);
 
 	/* Enable link */
 	dp_cs_id = get_clock_source_id(link);
-	dp_enable_link_phy(link, link->connector_signal,
+	dp_enable_link_phy(link, link_res, link->connector_signal,
 		dp_cs_id, link_settings);
 
 	/* Set FEC enable */
@@ -2722,7 +3078,7 @@ enum link_training_result dc_link_dp_sync_lt_attempt(
 	if (dp_get_link_encoding_format(link_settings) == DP_8b_10b_ENCODING) {
 #endif
 		fec_enable = lt_overrides->fec_enable && *lt_overrides->fec_enable;
-		dp_set_fec_ready(link, fec_enable);
+		dp_set_fec_ready(link, NULL, fec_enable);
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 	}
 #endif
@@ -2739,7 +3095,7 @@ enum link_training_result dc_link_dp_sync_lt_attempt(
 
 	/* Attempt to train with given link training settings */
 	if (link->ctx->dc->work_arounds.lt_early_cr_pattern)
-		start_clock_recovery_pattern_early(link, &lt_settings, DPRX);
+		start_clock_recovery_pattern_early(link, link_res, &lt_settings, DPRX);
 
 	/* Set link rate, lane count and spread. */
 	dpcd_set_link_settings(link, &lt_settings);
@@ -2747,9 +3103,10 @@ enum link_training_result dc_link_dp_sync_lt_attempt(
 	/* 2. perform link training (set link training done
 	 *  to false is done as well)
 	 */
-	lt_status = perform_clock_recovery_sequence(link, &lt_settings, DPRX);
+	lt_status = perform_clock_recovery_sequence(link, link_res, &lt_settings, DPRX);
 	if (lt_status == LINK_TRAINING_SUCCESS) {
 		lt_status = perform_channel_equalization_sequence(link,
+						link_res,
 						&lt_settings,
 						DPRX);
 	}
@@ -2770,11 +3127,11 @@ bool dc_link_dp_sync_lt_end(struct dc_link *link, bool link_down)
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 		struct dc_link_settings link_settings = link->cur_link_settings;
 #endif
-		dp_disable_link_phy(link, link->connector_signal);
+		dp_disable_link_phy(link, NULL, link->connector_signal);
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 		if (dp_get_link_encoding_format(&link_settings) == DP_8b_10b_ENCODING)
 #endif
-			dp_set_fec_ready(link, false);
+			dp_set_fec_ready(link, NULL, false);
 	}
 
 	link->sync_lt_in_progress = false;
@@ -2829,7 +3186,8 @@ bool dc_link_dp_get_max_link_enc_cap(const struct dc_link *link, struct dc_link_
 	return false;
 }
 
-static struct dc_link_settings get_max_link_cap(struct dc_link *link)
+static struct dc_link_settings get_max_link_cap(struct dc_link *link,
+		const struct link_resource *link_res)
 {
 	struct dc_link_settings max_link_cap = {0};
 #if defined(CONFIG_DRM_AMD_DC_DCN)
@@ -2853,9 +3211,11 @@ static struct dc_link_settings get_max_link_cap(struct dc_link *link)
 	if (link_enc)
 		link_enc->funcs->get_max_link_cap(link_enc, &max_link_cap);
 #if defined(CONFIG_DRM_AMD_DC_DCN)
-	if (max_link_cap.link_rate >= LINK_RATE_UHBR10 &&
-			!link->hpo_dp_link_enc)
-		max_link_cap.link_rate = LINK_RATE_HIGH3;
+	if (max_link_cap.link_rate >= LINK_RATE_UHBR10) {
+		if (!link_res->hpo_dp_link_enc ||
+				link->dc->debug.disable_uhbr)
+			max_link_cap.link_rate = LINK_RATE_HIGH3;
+	}
 #endif
 
 	/* Lower link settings based on sink's link cap */
@@ -2873,7 +3233,7 @@ static struct dc_link_settings get_max_link_cap(struct dc_link *link)
 	 * account for lttpr repeaters cap
 	 * notes: repeaters do not snoop in the DPRX Capabilities addresses (3.6.3).
 	 */
-	if (link->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT) {
+	if (link->lttpr_mode != LTTPR_MODE_NON_LTTPR) {
 		if (link->dpcd_caps.lttpr_caps.max_lane_count < max_link_cap.lane_count)
 			max_link_cap.lane_count = link->dpcd_caps.lttpr_caps.max_lane_count;
 
@@ -3012,6 +3372,7 @@ bool hpd_rx_irq_check_link_loss_status(
 
 bool dp_verify_link_cap(
 	struct dc_link *link,
+	const struct link_resource *link_res,
 	struct dc_link_settings *known_limit_link_setting,
 	int *fail_count)
 {
@@ -3029,7 +3390,7 @@ bool dp_verify_link_cap(
 	/* link training starts with the maximum common settings
 	 * supported by both sink and ASIC.
 	 */
-	max_link_cap = get_max_link_cap(link);
+	max_link_cap = get_max_link_cap(link, link_res);
 	initial_link_settings = get_common_supported_link_settings(
 			*known_limit_link_setting,
 			max_link_cap);
@@ -3069,7 +3430,7 @@ bool dp_verify_link_cap(
 	 * find the physical link capability
 	 */
 	/* disable PHY done possible by BIOS, will be done by driver itself */
-	dp_disable_link_phy(link, link->connector_signal);
+	dp_disable_link_phy(link, link_res, link->connector_signal);
 
 	dp_cs_id = get_clock_source_id(link);
 
@@ -3081,8 +3442,8 @@ bool dp_verify_link_cap(
 	 */
 	if (link->link_enc && link->link_enc->features.flags.bits.DP_IS_USB_C &&
 			link->dc->debug.usbc_combo_phy_reset_wa) {
-		dp_enable_link_phy(link, link->connector_signal, dp_cs_id, cur);
-		dp_disable_link_phy(link, link->connector_signal);
+		dp_enable_link_phy(link, link_res, link->connector_signal, dp_cs_id, cur);
+		dp_disable_link_phy(link, link_res, link->connector_signal);
 	}
 
 	do {
@@ -3093,6 +3454,7 @@ bool dp_verify_link_cap(
 
 		dp_enable_link_phy(
 				link,
+				link_res,
 				link->connector_signal,
 				dp_cs_id,
 				cur);
@@ -3103,6 +3465,7 @@ bool dp_verify_link_cap(
 		else {
 			status = dc_link_dp_perform_link_training(
 							link,
+							link_res,
 							cur,
 							skip_video_pattern);
 			if (status == LINK_TRAINING_SUCCESS)
@@ -3124,7 +3487,7 @@ bool dp_verify_link_cap(
 		 * setting or before returning we'll enable it later
 		 * based on the actual mode we're driving
 		 */
-		dp_disable_link_phy(link, link->connector_signal);
+		dp_disable_link_phy(link, link_res, link->connector_signal);
 	} while (!success && decide_fallback_link_setting(link,
 			initial_link_settings, cur, status));
 
@@ -3148,6 +3511,7 @@ bool dp_verify_link_cap(
 
 bool dp_verify_link_cap_with_retries(
 	struct dc_link *link,
+	const struct link_resource *link_res,
 	struct dc_link_settings *known_limit_link_setting,
 	int attempts)
 {
@@ -3165,7 +3529,7 @@ bool dp_verify_link_cap_with_retries(
 			link->verified_link_cap.link_rate = LINK_RATE_LOW;
 			link->verified_link_cap.link_spread = LINK_SPREAD_DISABLED;
 			break;
-		} else if (dp_verify_link_cap(link,
+		} else if (dp_verify_link_cap(link, link_res,
 				known_limit_link_setting,
 				&fail_count) && fail_count == 0) {
 			success = true;
@@ -3177,13 +3541,13 @@ bool dp_verify_link_cap_with_retries(
 }
 
 bool dp_verify_mst_link_cap(
-	struct dc_link *link)
+	struct dc_link *link, const struct link_resource *link_res)
 {
 	struct dc_link_settings max_link_cap = {0};
 
 	if (dp_get_link_encoding_format(&link->reported_link_cap) ==
 			DP_8b_10b_ENCODING) {
-		max_link_cap = get_max_link_cap(link);
+		max_link_cap = get_max_link_cap(link, link_res);
 		link->verified_link_cap = get_common_supported_link_settings(
 				link->reported_link_cap,
 				max_link_cap);
@@ -3192,6 +3556,7 @@ bool dp_verify_mst_link_cap(
 	else if (dp_get_link_encoding_format(&link->reported_link_cap) ==
 			DP_128b_132b_ENCODING) {
 		dp_verify_link_cap_with_retries(link,
+				link_res,
 				&link->reported_link_cap,
 				LINK_TRAINING_MAX_VERIFY_RETRY);
 	}
@@ -5720,7 +6085,7 @@ bool dc_link_dp_set_test_pattern(
 			DP_TEST_PATTERN_VIDEO_MODE) {
 		/* Set CRTC Test Pattern */
 		set_crtc_test_pattern(link, pipe_ctx, test_pattern, test_pattern_color_space);
-		dp_set_hw_test_pattern(link, test_pattern,
+		dp_set_hw_test_pattern(link, &pipe_ctx->link_res, test_pattern,
 				(uint8_t *)p_custom_pattern,
 				(uint32_t)cust_pattern_size);
 
@@ -5751,7 +6116,7 @@ bool dc_link_dp_set_test_pattern(
 						p_link_settings->dpcd_lane_settings,
 						p_link_settings->link_settings.lane_count);
 			} else {
-				dp_set_hw_lane_settings(link, p_link_settings, DPRX);
+				dp_set_hw_lane_settings(link, &pipe_ctx->link_res, p_link_settings, DPRX);
 				dpcd_set_lane_settings(link, p_link_settings, DPRX);
 			}
 		}
@@ -5766,7 +6131,7 @@ bool dc_link_dp_set_test_pattern(
 			pipes->stream_res.stream_enc->funcs->dp_blank(link, pipe_ctx->stream_res.stream_enc);
 		}
 
-		dp_set_hw_test_pattern(link, test_pattern,
+		dp_set_hw_test_pattern(link, &pipe_ctx->link_res, test_pattern,
 				(uint8_t *)p_custom_pattern,
 				(uint32_t)cust_pattern_size);
 
@@ -6086,7 +6451,7 @@ enum dp_panel_mode dp_get_panel_mode(struct dc_link *link)
 	return DP_PANEL_MODE_DEFAULT;
 }
 
-enum dc_status dp_set_fec_ready(struct dc_link *link, bool ready)
+enum dc_status dp_set_fec_ready(struct dc_link *link, const struct link_resource *link_res, bool ready)
 {
 	/* FEC has to be "set ready" before the link training.
 	 * The policy is to always train with FEC
@@ -6653,8 +7018,10 @@ struct fixed31_32 calculate_sst_avg_time_slots_per_mtp(
 
 bool is_dp_128b_132b_signal(struct pipe_ctx *pipe_ctx)
 {
+	/* If this assert is hit then we have a link encoder dynamic management issue */
+	ASSERT(pipe_ctx->stream_res.hpo_dp_stream_enc ? pipe_ctx->link_res.hpo_dp_link_enc != NULL : true);
 	return (pipe_ctx->stream_res.hpo_dp_stream_enc &&
-			pipe_ctx->stream->link->hpo_dp_link_enc &&
+			pipe_ctx->link_res.hpo_dp_link_enc &&
 			dc_is_dp_signal(pipe_ctx->stream->signal));
 }
 #endif
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c
index d72122593959..0e95bc5df4e7 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c
@@ -77,7 +77,9 @@ enum dc_status dpcd_get_tunneling_device_data(struct dc_link *link)
  * @param[in] link_setting Lane count, link rate and downspread control.
  * @param[out] lt_settings Link settings and drive settings (voltage swing and pre-emphasis).
  */
-static enum link_training_result dpia_configure_link(struct dc_link *link,
+static enum link_training_result dpia_configure_link(
+		struct dc_link *link,
+		const struct link_resource *link_res,
 		const struct dc_link_settings *link_setting,
 		struct link_training_settings *lt_settings)
 {
@@ -111,7 +113,7 @@ static enum link_training_result dpia_configure_link(struct dc_link *link,
 		fec_enable = *link->preferred_training_settings.fec_enable;
 	else
 		fec_enable = true;
-	status = dp_set_fec_ready(link, fec_enable);
+	status = dp_set_fec_ready(link, link_res, fec_enable);
 	if (status != DC_OK && link->is_hpd_pending)
 		return LINK_TRAINING_ABORT;
 
@@ -252,7 +254,9 @@ static enum dc_status dpcd_set_lt_pattern(struct dc_link *link,
  * @param lt_settings link_setting and drive settings (voltage swing and pre-emphasis).
  * @param hop The Hop in display path. DPRX = 0.
  */
-static enum link_training_result dpia_training_cr_non_transparent(struct dc_link *link,
+static enum link_training_result dpia_training_cr_non_transparent(
+		struct dc_link *link,
+		const struct link_resource *link_res,
 		struct link_training_settings *lt_settings,
 		uint32_t hop)
 {
@@ -411,7 +415,9 @@ static enum link_training_result dpia_training_cr_non_transparent(struct dc_link
  * @param link DPIA link being trained.
  * @param lt_settings link_setting and drive settings (voltage swing and pre-emphasis).
  */
-static enum link_training_result dpia_training_cr_transparent(struct dc_link *link,
+static enum link_training_result dpia_training_cr_transparent(
+		struct dc_link *link,
+		const struct link_resource *link_res,
 		struct link_training_settings *lt_settings)
 {
 	enum link_training_result result = LINK_TRAINING_CR_FAIL_LANE0;
@@ -511,16 +517,18 @@ static enum link_training_result dpia_training_cr_transparent(struct dc_link *li
  * @param lt_settings link_setting and drive settings (voltage swing and pre-emphasis).
  * @param hop The Hop in display path. DPRX = 0.
  */
-static enum link_training_result dpia_training_cr_phase(struct dc_link *link,
+static enum link_training_result dpia_training_cr_phase(
+		struct dc_link *link,
+		const struct link_resource *link_res,
 		struct link_training_settings *lt_settings,
 		uint32_t hop)
 {
 	enum link_training_result result = LINK_TRAINING_CR_FAIL_LANE0;
 
 	if (link->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT)
-		result = dpia_training_cr_non_transparent(link, lt_settings, hop);
+		result = dpia_training_cr_non_transparent(link, link_res, lt_settings, hop);
 	else
-		result = dpia_training_cr_transparent(link, lt_settings);
+		result = dpia_training_cr_transparent(link, link_res, lt_settings);
 
 	return result;
 }
@@ -561,7 +569,9 @@ static uint32_t dpia_get_eq_aux_rd_interval(const struct dc_link *link,
  * @param lt_settings link_setting and drive settings (voltage swing and pre-emphasis).
  * @param hop The Hop in display path. DPRX = 0.
  */
-static enum link_training_result dpia_training_eq_non_transparent(struct dc_link *link,
+static enum link_training_result dpia_training_eq_non_transparent(
+		struct dc_link *link,
+		const struct link_resource *link_res,
 		struct link_training_settings *lt_settings,
 		uint32_t hop)
 {
@@ -700,7 +710,9 @@ static enum link_training_result dpia_training_eq_non_transparent(struct dc_link
  * @param lt_settings link_setting and drive settings (voltage swing and pre-emphasis).
  * @param hop The Hop in display path. DPRX = 0.
  */
-static enum link_training_result dpia_training_eq_transparent(struct dc_link *link,
+static enum link_training_result dpia_training_eq_transparent(
+		struct dc_link *link,
+		const struct link_resource *link_res,
 		struct link_training_settings *lt_settings)
 {
 	enum link_training_result result = LINK_TRAINING_EQ_FAIL_EQ;
@@ -779,16 +791,18 @@ static enum link_training_result dpia_training_eq_transparent(struct dc_link *li
  * @param lt_settings link_setting and drive settings (voltage swing and pre-emphasis).
  * @param hop The Hop in display path. DPRX = 0.
  */
-static enum link_training_result dpia_training_eq_phase(struct dc_link *link,
+static enum link_training_result dpia_training_eq_phase(
+		struct dc_link *link,
+		const struct link_resource *link_res,
 		struct link_training_settings *lt_settings,
 		uint32_t hop)
 {
 	enum link_training_result result;
 
 	if (link->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT)
-		result = dpia_training_eq_non_transparent(link, lt_settings, hop);
+		result = dpia_training_eq_non_transparent(link, link_res, lt_settings, hop);
 	else
-		result = dpia_training_eq_transparent(link, lt_settings);
+		result = dpia_training_eq_transparent(link, link_res, lt_settings);
 
 	return result;
 }
@@ -908,7 +922,9 @@ static void dpia_training_abort(struct dc_link *link, uint32_t hop)
 	core_link_send_set_config(link, DPIA_SET_CFG_SET_LINK, data);
 }
 
-enum link_training_result dc_link_dpia_perform_link_training(struct dc_link *link,
+enum link_training_result dc_link_dpia_perform_link_training(
+	struct dc_link *link,
+	const struct link_resource *link_res,
 	const struct dc_link_settings *link_setting,
 	bool skip_video_pattern)
 {
@@ -918,7 +934,7 @@ enum link_training_result dc_link_dpia_perform_link_training(struct dc_link *lin
 	int8_t repeater_id; /* Current hop. */
 
 	/* Configure link as prescribed in link_setting and set LTTPR mode. */
-	result = dpia_configure_link(link, link_setting, &lt_settings);
+	result = dpia_configure_link(link, link_res, link_setting, &lt_settings);
 	if (result != LINK_TRAINING_SUCCESS)
 		return result;
 
@@ -930,12 +946,12 @@ enum link_training_result dc_link_dpia_perform_link_training(struct dc_link *lin
 	 */
 	for (repeater_id = repeater_cnt; repeater_id >= 0; repeater_id--) {
 		/* Clock recovery. */
-		result = dpia_training_cr_phase(link, &lt_settings, repeater_id);
+		result = dpia_training_cr_phase(link, link_res, &lt_settings, repeater_id);
 		if (result != LINK_TRAINING_SUCCESS)
 			break;
 
 		/* Equalization. */
-		result = dpia_training_eq_phase(link, &lt_settings, repeater_id);
+		result = dpia_training_eq_phase(link, link_res, &lt_settings, repeater_id);
 		if (result != LINK_TRAINING_SUCCESS)
 			break;
 
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
index 368e834c6809..45d03d3a95c3 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
@@ -71,6 +71,7 @@ void dp_source_sequence_trace(struct dc_link *link, uint8_t dp_test_mode)
 
 void dp_enable_link_phy(
 	struct dc_link *link,
+	const struct link_resource *link_res,
 	enum signal_type signal,
 	enum clock_source_id clock_source,
 	const struct dc_link_settings *link_settings)
@@ -135,7 +136,7 @@ void dp_enable_link_phy(
 
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 	if (dp_get_link_encoding_format(link_settings) == DP_128b_132b_ENCODING) {
-		enable_dp_hpo_output(link, link_settings);
+		enable_dp_hpo_output(link, link_res, link_settings);
 	} else if (dp_get_link_encoding_format(link_settings) == DP_8b_10b_ENCODING) {
 		if (dc_is_dp_sst_signal(signal)) {
 			link_enc->funcs->enable_dp_output(
@@ -236,12 +237,13 @@ bool edp_receiver_ready_T7(struct dc_link *link)
 	return result;
 }
 
-void dp_disable_link_phy(struct dc_link *link, enum signal_type signal)
+void dp_disable_link_phy(struct dc_link *link, const struct link_resource *link_res,
+		enum signal_type signal)
 {
 	struct dc  *dc = link->ctx->dc;
 	struct dmcu *dmcu = dc->res_pool->dmcu;
 #if defined(CONFIG_DRM_AMD_DC_DCN)
-	struct hpo_dp_link_encoder *hpo_link_enc = link->hpo_dp_link_enc;
+	struct hpo_dp_link_encoder *hpo_link_enc = link_res->hpo_dp_link_enc;
 #endif
 	struct link_encoder *link_enc;
 
@@ -260,7 +262,7 @@ void dp_disable_link_phy(struct dc_link *link, enum signal_type signal)
 			link->dc->hwss.edp_backlight_control(link, false);
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 		if (dp_get_link_encoding_format(&link->cur_link_settings) == DP_128b_132b_ENCODING)
-			disable_dp_hpo_output(link, signal);
+			disable_dp_hpo_output(link, link_res, signal);
 		else
 			link_enc->funcs->disable_output(link_enc, signal);
 #else
@@ -274,7 +276,7 @@ void dp_disable_link_phy(struct dc_link *link, enum signal_type signal)
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 		if (dp_get_link_encoding_format(&link->cur_link_settings) == DP_128b_132b_ENCODING &&
 				hpo_link_enc)
-			disable_dp_hpo_output(link, signal);
+			disable_dp_hpo_output(link, link_res, signal);
 		else
 			link_enc->funcs->disable_output(link_enc, signal);
 #else
@@ -294,13 +296,14 @@ void dp_disable_link_phy(struct dc_link *link, enum signal_type signal)
 		dc->clk_mgr->funcs->notify_link_rate_change(dc->clk_mgr, link);
 }
 
-void dp_disable_link_phy_mst(struct dc_link *link, enum signal_type signal)
+void dp_disable_link_phy_mst(struct dc_link *link, const struct link_resource *link_res,
+		enum signal_type signal)
 {
 	/* MST disable link only when no stream use the link */
 	if (link->mst_stream_alloc_table.stream_count > 0)
 		return;
 
-	dp_disable_link_phy(link, signal);
+	dp_disable_link_phy(link, link_res, signal);
 
 	/* set the sink to SST mode after disabling the link */
 	dp_enable_mst_on_sink(link, false);
@@ -308,6 +311,7 @@ void dp_disable_link_phy_mst(struct dc_link *link, enum signal_type signal)
 
 bool dp_set_hw_training_pattern(
 	struct dc_link *link,
+	const struct link_resource *link_res,
 	enum dc_dp_training_pattern pattern,
 	uint32_t offset)
 {
@@ -338,7 +342,7 @@ bool dp_set_hw_training_pattern(
 		break;
 	}
 
-	dp_set_hw_test_pattern(link, test_pattern, NULL, 0);
+	dp_set_hw_test_pattern(link, link_res, test_pattern, NULL, 0);
 
 	return true;
 }
@@ -349,6 +353,7 @@ bool dp_set_hw_training_pattern(
 #endif
 void dp_set_hw_lane_settings(
 	struct dc_link *link,
+	const struct link_resource *link_res,
 	const struct link_training_settings *link_settings,
 	uint32_t offset)
 {
@@ -361,8 +366,8 @@ void dp_set_hw_lane_settings(
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 	if (dp_get_link_encoding_format(&link_settings->link_settings) ==
 			DP_128b_132b_ENCODING) {
-		link->hpo_dp_link_enc->funcs->set_ffe(
-				link->hpo_dp_link_enc,
+		link_res->hpo_dp_link_enc->funcs->set_ffe(
+				link_res->hpo_dp_link_enc,
 				&link_settings->link_settings,
 				link_settings->lane_settings[0].FFE_PRESET.raw);
 	} else if (dp_get_link_encoding_format(&link_settings->link_settings)
@@ -379,6 +384,7 @@ void dp_set_hw_lane_settings(
 
 void dp_set_hw_test_pattern(
 	struct dc_link *link,
+	const struct link_resource *link_res,
 	enum dp_test_pattern test_pattern,
 	uint8_t *custom_pattern,
 	uint32_t custom_pattern_size)
@@ -406,8 +412,8 @@ void dp_set_hw_test_pattern(
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 	switch (link_encoding_format) {
 	case DP_128b_132b_ENCODING:
-		link->hpo_dp_link_enc->funcs->set_link_test_pattern(
-				link->hpo_dp_link_enc, &pattern_param);
+		link_res->hpo_dp_link_enc->funcs->set_link_test_pattern(
+				link_res->hpo_dp_link_enc, &pattern_param);
 		break;
 	case DP_8b_10b_ENCODING:
 		ASSERT(encoder);
@@ -446,7 +452,7 @@ void dp_retrain_link_dp_test(struct dc_link *link,
 					pipes[i].stream_res.stream_enc);
 
 			/* disable any test pattern that might be active */
-			dp_set_hw_test_pattern(link,
+			dp_set_hw_test_pattern(link, &pipes[i].link_res,
 					DP_TEST_PATTERN_VIDEO_MODE, NULL, 0);
 
 			dp_receiver_power_ctrl(link, false);
@@ -763,7 +769,9 @@ static enum phyd32clk_clock_source get_phyd32clk_src(struct dc_link *link)
 	}
 }
 
-void enable_dp_hpo_output(struct dc_link *link, const struct dc_link_settings *link_settings)
+void enable_dp_hpo_output(struct dc_link *link,
+		const struct link_resource *link_res,
+		const struct dc_link_settings *link_settings)
 {
 	const struct dc *dc = link->dc;
 	enum phyd32clk_clock_source phyd32clk;
@@ -789,10 +797,11 @@ void enable_dp_hpo_output(struct dc_link *link, const struct dc_link_settings *l
 		}
 	} else {
 		/* DP2.0 HW: call transmitter control to enable PHY */
-		link->hpo_dp_link_enc->funcs->enable_link_phy(
-				link->hpo_dp_link_enc,
+		link_res->hpo_dp_link_enc->funcs->enable_link_phy(
+				link_res->hpo_dp_link_enc,
 				link_settings,
-				link->link_enc->transmitter);
+				link->link_enc->transmitter,
+				link->link_enc->hpd_source);
 	}
 
 	/* DCCG muxing and DTBCLK DTO */
@@ -806,24 +815,26 @@ void enable_dp_hpo_output(struct dc_link *link, const struct dc_link_settings *l
 		phyd32clk = get_phyd32clk_src(link);
 		dc->res_pool->dccg->funcs->enable_symclk32_le(
 				dc->res_pool->dccg,
-				link->hpo_dp_link_enc->inst,
+				link_res->hpo_dp_link_enc->inst,
 				phyd32clk);
-		link->hpo_dp_link_enc->funcs->link_enable(
-					link->hpo_dp_link_enc,
-					link_settings->lane_count);
+		link_res->hpo_dp_link_enc->funcs->link_enable(
+				link_res->hpo_dp_link_enc,
+				link_settings->lane_count);
 	}
 }
 
-void disable_dp_hpo_output(struct dc_link *link, enum signal_type signal)
+void disable_dp_hpo_output(struct dc_link *link,
+		const struct link_resource *link_res,
+		enum signal_type signal)
 {
 	const struct dc *dc = link->dc;
 
-	link->hpo_dp_link_enc->funcs->link_disable(link->hpo_dp_link_enc);
+	link_res->hpo_dp_link_enc->funcs->link_disable(link_res->hpo_dp_link_enc);
 
 	if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
 		dc->res_pool->dccg->funcs->disable_symclk32_le(
 					dc->res_pool->dccg,
-					link->hpo_dp_link_enc->inst);
+					link_res->hpo_dp_link_enc->inst);
 
 		dc->res_pool->dccg->funcs->set_physymclk(
 					dc->res_pool->dccg,
@@ -834,8 +845,8 @@ void disable_dp_hpo_output(struct dc_link *link, enum signal_type signal)
 		dm_set_phyd32clk(dc->ctx, 0);
 	} else {
 		/* DP2.0 HW: call transmitter control to disable PHY */
-		link->hpo_dp_link_enc->funcs->disable_link_phy(
-				link->hpo_dp_link_enc,
+		link_res->hpo_dp_link_enc->funcs->disable_link_phy(
+				link_res->hpo_dp_link_enc,
 				signal);
 	}
 }
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 8b6b035bfa9c..eaeef72773f6 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -734,10 +734,6 @@ static void calculate_split_count_and_index(struct pipe_ctx *pipe_ctx, int *spli
 			(*split_idx)++;
 			split_pipe = split_pipe->top_pipe;
 		}
-
-		/* MPO window on right side of ODM split */
-		if (split_pipe && split_pipe->prev_odm_pipe && !pipe_ctx->prev_odm_pipe)
-			(*split_idx)++;
 	} else {
 		/*Get odm split index*/
 		struct pipe_ctx *split_pipe = pipe_ctx->prev_odm_pipe;
@@ -784,11 +780,7 @@ static void calculate_recout(struct pipe_ctx *pipe_ctx)
 	/*
 	 * Only the leftmost ODM pipe should be offset by a nonzero distance
 	 */
-	if (pipe_ctx->top_pipe && pipe_ctx->top_pipe->prev_odm_pipe && !pipe_ctx->prev_odm_pipe) {
-		/* MPO window on right side of ODM split */
-		data->recout.x = stream->dst.x + (surf_clip.x - stream->dst.width/2) *
-				stream->dst.width / stream->src.width;
-	} else if (!pipe_ctx->prev_odm_pipe || split_idx == split_count) {
+	if (!pipe_ctx->prev_odm_pipe || split_idx == split_count) {
 		data->recout.x = stream->dst.x;
 		if (stream->src.x < surf_clip.x)
 			data->recout.x += (surf_clip.x - stream->src.x) * stream->dst.width
@@ -986,8 +978,6 @@ static void calculate_inits_and_viewports(struct pipe_ctx *pipe_ctx)
 			* stream->dst.height / stream->src.height;
 	if (pipe_ctx->prev_odm_pipe && split_idx)
 		ro_lb = data->h_active * split_idx - recout_full_x;
-	else if (pipe_ctx->top_pipe && pipe_ctx->top_pipe->prev_odm_pipe)
-		ro_lb = data->h_active * split_idx - recout_full_x + data->recout.x;
 	else
 		ro_lb = data->recout.x - recout_full_x;
 	ro_tb = data->recout.y - recout_full_y;
@@ -1086,9 +1076,6 @@ bool resource_build_scaling_params(struct pipe_ctx *pipe_ctx)
 		timing->v_border_top + timing->v_border_bottom;
 	if (pipe_ctx->next_odm_pipe || pipe_ctx->prev_odm_pipe)
 		pipe_ctx->plane_res.scl_data.h_active /= get_num_odm_splits(pipe_ctx) + 1;
-	/* ODM + windows MPO, where window is on either right or left ODM half */
-	else if (pipe_ctx->top_pipe && (pipe_ctx->top_pipe->next_odm_pipe || pipe_ctx->top_pipe->prev_odm_pipe))
-		pipe_ctx->plane_res.scl_data.h_active /= get_num_odm_splits(pipe_ctx->top_pipe) + 1;
 
 	/* depends on h_active */
 	calculate_recout(pipe_ctx);
@@ -1097,6 +1084,11 @@ bool resource_build_scaling_params(struct pipe_ctx *pipe_ctx)
 	/* depends on scaling ratios and recout, does not calculate offset yet */
 	calculate_viewport_size(pipe_ctx);
 
+	/* Stopgap for validation of ODM + MPO on one side of screen case */
+	if (pipe_ctx->plane_res.scl_data.viewport.height < 1 ||
+			pipe_ctx->plane_res.scl_data.viewport.width < 1)
+		return false;
+
 	/*
 	 * LB calculations depend on vp size, h/v_active and scaling ratios
 	 * Setting line buffer pixel depth to 24bpp yields banding
@@ -1445,54 +1437,23 @@ bool dc_add_plane_to_context(
 		if (head_pipe != free_pipe) {
 			tail_pipe = resource_get_tail_pipe(&context->res_ctx, head_pipe);
 			ASSERT(tail_pipe);
-
-			/* ODM + window MPO, where MPO window is on right half only */
-			if (free_pipe->plane_state &&
-					(free_pipe->plane_state->clip_rect.x >= free_pipe->stream->src.width/2) &&
-					tail_pipe->next_odm_pipe) {
-				free_pipe->stream_res.tg = tail_pipe->next_odm_pipe->stream_res.tg;
-				free_pipe->stream_res.abm = tail_pipe->next_odm_pipe->stream_res.abm;
-				free_pipe->stream_res.opp = tail_pipe->next_odm_pipe->stream_res.opp;
-				free_pipe->stream_res.stream_enc = tail_pipe->next_odm_pipe->stream_res.stream_enc;
-				free_pipe->stream_res.audio = tail_pipe->next_odm_pipe->stream_res.audio;
-				free_pipe->clock_source = tail_pipe->next_odm_pipe->clock_source;
-
-				free_pipe->top_pipe = tail_pipe->next_odm_pipe;
-				tail_pipe->next_odm_pipe->bottom_pipe = free_pipe;
-			} else {
-				free_pipe->stream_res.tg = tail_pipe->stream_res.tg;
-				free_pipe->stream_res.abm = tail_pipe->stream_res.abm;
-				free_pipe->stream_res.opp = tail_pipe->stream_res.opp;
-				free_pipe->stream_res.stream_enc = tail_pipe->stream_res.stream_enc;
-				free_pipe->stream_res.audio = tail_pipe->stream_res.audio;
-				free_pipe->clock_source = tail_pipe->clock_source;
-
-				free_pipe->top_pipe = tail_pipe;
-				tail_pipe->bottom_pipe = free_pipe;
-
-				if (!free_pipe->next_odm_pipe && tail_pipe->next_odm_pipe && tail_pipe->next_odm_pipe->bottom_pipe) {
-					free_pipe->next_odm_pipe = tail_pipe->next_odm_pipe->bottom_pipe;
-					tail_pipe->next_odm_pipe->bottom_pipe->prev_odm_pipe = free_pipe;
-				}
-				if (!free_pipe->prev_odm_pipe && tail_pipe->prev_odm_pipe && tail_pipe->prev_odm_pipe->bottom_pipe) {
-					free_pipe->prev_odm_pipe = tail_pipe->prev_odm_pipe->bottom_pipe;
-					tail_pipe->prev_odm_pipe->bottom_pipe->next_odm_pipe = free_pipe;
-				}
+			free_pipe->stream_res.tg = tail_pipe->stream_res.tg;
+			free_pipe->stream_res.abm = tail_pipe->stream_res.abm;
+			free_pipe->stream_res.opp = tail_pipe->stream_res.opp;
+			free_pipe->stream_res.stream_enc = tail_pipe->stream_res.stream_enc;
+			free_pipe->stream_res.audio = tail_pipe->stream_res.audio;
+			free_pipe->clock_source = tail_pipe->clock_source;
+			free_pipe->top_pipe = tail_pipe;
+			tail_pipe->bottom_pipe = free_pipe;
+			if (!free_pipe->next_odm_pipe && tail_pipe->next_odm_pipe && tail_pipe->next_odm_pipe->bottom_pipe) {
+				free_pipe->next_odm_pipe = tail_pipe->next_odm_pipe->bottom_pipe;
+				tail_pipe->next_odm_pipe->bottom_pipe->prev_odm_pipe = free_pipe;
+			}
+			if (!free_pipe->prev_odm_pipe && tail_pipe->prev_odm_pipe && tail_pipe->prev_odm_pipe->bottom_pipe) {
+				free_pipe->prev_odm_pipe = tail_pipe->prev_odm_pipe->bottom_pipe;
+				tail_pipe->prev_odm_pipe->bottom_pipe->next_odm_pipe = free_pipe;
 			}
 		}
-
-		/* ODM + window MPO, where MPO window is on left half only */
-		if (free_pipe->plane_state &&
-				(free_pipe->plane_state->clip_rect.x + free_pipe->plane_state->clip_rect.width <=
-				free_pipe->stream->src.x + free_pipe->stream->src.width/2)) {
-			break;
-		}
-		/* ODM + window MPO, where MPO window is on right half only */
-		if (free_pipe->plane_state &&
-				(free_pipe->plane_state->clip_rect.x >= free_pipe->stream->src.width/2)) {
-			break;
-		}
-
 		head_pipe = head_pipe->next_odm_pipe;
 	}
 	/* assign new surfaces*/
@@ -1763,6 +1724,94 @@ static void update_hpo_dp_stream_engine_usage(
 			res_ctx->is_hpo_dp_stream_enc_acquired[i] = acquired;
 	}
 }
+
+static inline int find_acquired_hpo_dp_link_enc_for_link(
+		const struct resource_context *res_ctx,
+		const struct dc_link *link)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(res_ctx->hpo_dp_link_enc_to_link_idx); i++)
+		if (res_ctx->hpo_dp_link_enc_ref_cnts[i] > 0 &&
+				res_ctx->hpo_dp_link_enc_to_link_idx[i] == link->link_index)
+			return i;
+
+	return -1;
+}
+
+static inline int find_free_hpo_dp_link_enc(const struct resource_context *res_ctx,
+		const struct resource_pool *pool)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(res_ctx->hpo_dp_link_enc_ref_cnts); i++)
+		if (res_ctx->hpo_dp_link_enc_ref_cnts[i] == 0)
+			break;
+
+	return (i < ARRAY_SIZE(res_ctx->hpo_dp_link_enc_ref_cnts) &&
+			i < pool->hpo_dp_link_enc_count) ? i : -1;
+}
+
+static inline void acquire_hpo_dp_link_enc(
+		struct resource_context *res_ctx,
+		unsigned int link_index,
+		int enc_index)
+{
+	res_ctx->hpo_dp_link_enc_to_link_idx[enc_index] = link_index;
+	res_ctx->hpo_dp_link_enc_ref_cnts[enc_index] = 1;
+}
+
+static inline void retain_hpo_dp_link_enc(
+		struct resource_context *res_ctx,
+		int enc_index)
+{
+	res_ctx->hpo_dp_link_enc_ref_cnts[enc_index]++;
+}
+
+static inline void release_hpo_dp_link_enc(
+		struct resource_context *res_ctx,
+		int enc_index)
+{
+	ASSERT(res_ctx->hpo_dp_link_enc_ref_cnts[enc_index] > 0);
+	res_ctx->hpo_dp_link_enc_ref_cnts[enc_index]--;
+}
+
+static bool add_hpo_dp_link_enc_to_ctx(struct resource_context *res_ctx,
+		const struct resource_pool *pool,
+		struct pipe_ctx *pipe_ctx,
+		struct dc_stream_state *stream)
+{
+	int enc_index;
+
+	enc_index = find_acquired_hpo_dp_link_enc_for_link(res_ctx, stream->link);
+
+	if (enc_index >= 0) {
+		retain_hpo_dp_link_enc(res_ctx, enc_index);
+	} else {
+		enc_index = find_free_hpo_dp_link_enc(res_ctx, pool);
+		if (enc_index >= 0)
+			acquire_hpo_dp_link_enc(res_ctx, stream->link->link_index, enc_index);
+	}
+
+	if (enc_index >= 0)
+		pipe_ctx->link_res.hpo_dp_link_enc = pool->hpo_dp_link_enc[enc_index];
+
+	return pipe_ctx->link_res.hpo_dp_link_enc != NULL;
+}
+
+static void remove_hpo_dp_link_enc_from_ctx(struct resource_context *res_ctx,
+		struct pipe_ctx *pipe_ctx,
+		struct dc_stream_state *stream)
+{
+	int enc_index;
+
+	enc_index = find_acquired_hpo_dp_link_enc_for_link(res_ctx, stream->link);
+
+	if (enc_index >= 0) {
+		release_hpo_dp_link_enc(res_ctx, enc_index);
+		pipe_ctx->link_res.hpo_dp_link_enc = NULL;
+	}
+}
 #endif
 
 /* TODO: release audio object */
@@ -1925,6 +1974,7 @@ enum dc_status dc_remove_stream_from_ctx(
 			&new_ctx->res_ctx, dc->res_pool,
 			del_pipe->stream_res.hpo_dp_stream_enc,
 			false);
+		remove_hpo_dp_link_enc_from_ctx(&new_ctx->res_ctx, del_pipe, del_pipe->stream);
 	}
 #endif
 
@@ -2200,6 +2250,8 @@ enum dc_status resource_map_pool_resources(
 					&context->res_ctx, pool,
 					pipe_ctx->stream_res.hpo_dp_stream_enc,
 					true);
+			if (!add_hpo_dp_link_enc_to_ctx(&context->res_ctx, pool, pipe_ctx, stream))
+				return DC_NO_LINK_ENC_RESOURCE;
 		}
 	}
 #endif
@@ -2875,6 +2927,8 @@ bool pipe_need_reprogram(
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 	if (pipe_ctx_old->stream_res.hpo_dp_stream_enc != pipe_ctx->stream_res.hpo_dp_stream_enc)
 		return true;
+	if (pipe_ctx_old->link_res.hpo_dp_link_enc != pipe_ctx->link_res.hpo_dp_link_enc)
+		return true;
 #endif
 
 	/* DIG link encoder resource assignment for stream changed. */
@@ -3143,22 +3197,23 @@ void get_audio_check(struct audio_info *aud_modes,
 }
 
 #if defined(CONFIG_DRM_AMD_DC_DCN)
-struct hpo_dp_link_encoder *resource_get_unused_hpo_dp_link_encoder(
-		const struct resource_pool *pool)
+struct hpo_dp_link_encoder *resource_get_hpo_dp_link_enc_for_det_lt(
+		const struct resource_context *res_ctx,
+		const struct resource_pool *pool,
+		const struct dc_link *link)
 {
-	uint8_t i;
-	struct hpo_dp_link_encoder *enc = NULL;
+	struct hpo_dp_link_encoder *hpo_dp_link_enc = NULL;
+	int enc_index;
 
-	ASSERT(pool->hpo_dp_link_enc_count <= MAX_HPO_DP2_LINK_ENCODERS);
+	enc_index = find_acquired_hpo_dp_link_enc_for_link(res_ctx, link);
 
-	for (i = 0; i < pool->hpo_dp_link_enc_count; i++) {
-		if (pool->hpo_dp_link_enc[i]->transmitter == TRANSMITTER_UNKNOWN) {
-			enc = pool->hpo_dp_link_enc[i];
-			break;
-		}
-	}
+	if (enc_index < 0)
+		enc_index = find_free_hpo_dp_link_enc(res_ctx, pool);
+
+	if (enc_index >= 0)
+		hpo_dp_link_enc = pool->hpo_dp_link_enc[enc_index];
 
-	return enc;
+	return hpo_dp_link_enc;
 }
 #endif