drm/amd/display: Drop unused link FPGA code

There are multiple parts of the code that DC does not use anymore, and
this commit drops those dead codes.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

5 files changed, 2 insertions, 129 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/link/Makefile b/drivers/gpu/drm/amd/display/dc/link/Makefile
index 6af8a97d4a77..84c7af5fa589 100644
--- a/drivers/gpu/drm/amd/display/dc/link/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/link/Makefile
@@ -33,7 +33,7 @@ AMD_DISPLAY_FILES += $(AMD_DAL_LINK)
 ###############################################################################
 # accessories
 ###############################################################################
-LINK_ACCESSORIES = link_dp_trace.o link_dp_cts.o link_fpga.o
+LINK_ACCESSORIES = link_dp_trace.o link_dp_cts.o
 
 AMD_DAL_LINK_ACCESSORIES = $(addprefix $(AMDDALPATH)/dc/link/accessories/, \
 $(LINK_ACCESSORIES))
@@ -61,4 +61,4 @@ link_edp_panel_control.o link_dp_irq_handler.o link_dp_dpia_bw.o
 AMD_DAL_LINK_PROTOCOLS = $(addprefix $(AMDDALPATH)/dc/link/protocols/, \
 $(LINK_PROTOCOLS))
 
-AMD_DISPLAY_FILES += $(AMD_DAL_LINK_PROTOCOLS)
\ No newline at end of file
+AMD_DISPLAY_FILES += $(AMD_DAL_LINK_PROTOCOLS)
diff --git a/drivers/gpu/drm/amd/display/dc/link/accessories/link_fpga.c b/drivers/gpu/drm/amd/display/dc/link/accessories/link_fpga.c
deleted file mode 100644
index d3cc604eed67..000000000000
--- a/drivers/gpu/drm/amd/display/dc/link/accessories/link_fpga.c
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * Copyright 2023 Advanced Micro Devices, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- *
- * Authors: AMD
- *
- */
-#include "link_fpga.h"
-#include "link/link_dpms.h"
-#include "dm_helpers.h"
-#include "link_hwss.h"
-#include "dccg.h"
-#include "resource.h"
-
-#define DC_LOGGER_INIT(logger)
-
-void dp_fpga_hpo_enable_link_and_stream(struct dc_state *state, struct pipe_ctx *pipe_ctx)
-{
-	struct dc *dc = pipe_ctx->stream->ctx->dc;
-	struct dc_stream_state *stream = pipe_ctx->stream;
-	struct link_mst_stream_allocation_table proposed_table = {0};
-	struct fixed31_32 avg_time_slots_per_mtp;
-	uint8_t req_slot_count = 0;
-	uint8_t vc_id = 1; /// VC ID always 1 for SST
-	struct dc_link_settings link_settings = pipe_ctx->link_config.dp_link_settings;
-	const struct link_hwss *link_hwss = get_link_hwss(stream->link, &pipe_ctx->link_res);
-	DC_LOGGER_INIT(pipe_ctx->stream->ctx->logger);
-
-	stream->link->cur_link_settings = link_settings;
-
-	if (link_hwss->ext.enable_dp_link_output)
-		link_hwss->ext.enable_dp_link_output(stream->link, &pipe_ctx->link_res,
-				stream->signal, pipe_ctx->clock_source->id,
-				&link_settings);
-
-	/* Enable DP_STREAM_ENC */
-	dc->hwss.enable_stream(pipe_ctx);
-
-	/* Set DPS PPS SDP (AKA "info frames") */
-	if (pipe_ctx->stream->timing.flags.DSC) {
-		link_set_dsc_pps_packet(pipe_ctx, true, true);
-	}
-
-	/* Allocate Payload */
-	if ((stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST) && (state->stream_count > 1)) {
-		// MST case
-		uint8_t i;
-
-		proposed_table.stream_count = state->stream_count;
-		for (i = 0; i < state->stream_count; i++) {
-			avg_time_slots_per_mtp = link_calculate_sst_avg_time_slots_per_mtp(state->streams[i], state->streams[i]->link);
-			req_slot_count = dc_fixpt_ceil(avg_time_slots_per_mtp);
-			proposed_table.stream_allocations[i].slot_count = req_slot_count;
-			proposed_table.stream_allocations[i].vcp_id = i+1;
-			/* NOTE: This makes assumption that pipe_ctx index is same as stream index */
-			proposed_table.stream_allocations[i].hpo_dp_stream_enc = state->res_ctx.pipe_ctx[i].stream_res.hpo_dp_stream_enc;
-		}
-	} else {
-		// SST case
-		avg_time_slots_per_mtp = link_calculate_sst_avg_time_slots_per_mtp(stream, stream->link);
-		req_slot_count = dc_fixpt_ceil(avg_time_slots_per_mtp);
-		proposed_table.stream_count = 1; /// Always 1 stream for SST
-		proposed_table.stream_allocations[0].slot_count = req_slot_count;
-		proposed_table.stream_allocations[0].vcp_id = vc_id;
-		proposed_table.stream_allocations[0].hpo_dp_stream_enc = pipe_ctx->stream_res.hpo_dp_stream_enc;
-	}
-
-	link_hwss->ext.update_stream_allocation_table(stream->link,
-			&pipe_ctx->link_res,
-			&proposed_table);
-
-	if (link_hwss->ext.set_throttled_vcp_size)
-		link_hwss->ext.set_throttled_vcp_size(pipe_ctx, avg_time_slots_per_mtp);
-
-	dc->hwss.unblank_stream(pipe_ctx, &stream->link->cur_link_settings);
-	dc->hwss.enable_audio_stream(pipe_ctx);
-}
-
diff --git a/drivers/gpu/drm/amd/display/dc/link/accessories/link_fpga.h b/drivers/gpu/drm/amd/display/dc/link/accessories/link_fpga.h
deleted file mode 100644
index 3a80f5595943..000000000000
--- a/drivers/gpu/drm/amd/display/dc/link/accessories/link_fpga.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright 2023 Advanced Micro Devices, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- *
- * Authors: AMD
- *
- */
-#ifndef __LINK_FPGA_H__
-#define __LINK_FPGA_H__
-#include "link.h"
-void dp_fpga_hpo_enable_link_and_stream(struct dc_state *state,
-		struct pipe_ctx *pipe_ctx);
-#endif /* __LINK_FPGA_H__ */
diff --git a/drivers/gpu/drm/amd/display/dc/link/link_dpms.c b/drivers/gpu/drm/amd/display/dc/link/link_dpms.c
index 75ae4fa06969..e5129580369a 100644
--- a/drivers/gpu/drm/amd/display/dc/link/link_dpms.c
+++ b/drivers/gpu/drm/amd/display/dc/link/link_dpms.c
@@ -38,7 +38,6 @@
 #include "link_dpms.h"
 #include "link_hwss.h"
 #include "link_validation.h"
-#include "accessories/link_fpga.h"
 #include "accessories/link_dp_trace.h"
 #include "protocols/link_dpcd.h"
 #include "protocols/link_ddc.h"
diff --git a/drivers/gpu/drm/amd/display/dc/link/link_factory.c b/drivers/gpu/drm/amd/display/dc/link/link_factory.c
index e406561c2c23..754aab662489 100644
--- a/drivers/gpu/drm/amd/display/dc/link/link_factory.c
+++ b/drivers/gpu/drm/amd/display/dc/link/link_factory.c
@@ -33,7 +33,6 @@
 #include "link_dpms.h"
 #include "accessories/link_dp_cts.h"
 #include "accessories/link_dp_trace.h"
-#include "accessories/link_fpga.h"
 #include "protocols/link_ddc.h"
 #include "protocols/link_dp_capability.h"
 #include "protocols/link_dp_dpia_bw.h"