drm/amd/display: Drop legacy code

This commit removes code that are not used by display anymore.
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/inc/hw/stream_encoder.h

@@ -178,10 +178,6 @@ struct stream_encoder_funcs {
 	void (*stop_dp_info_packets)(
 		struct stream_encoder *enc);
 
-	void (*reset_fifo)(
-		struct stream_encoder *enc
-	);
-
 	void (*dp_blank)(
 		struct dc_link *link,
 		struct stream_encoder *enc);

drivers/gpu/drm/amd/display/dc/inc/resource.h

@@ -584,13 +584,6 @@ bool get_temp_dp_link_res(struct dc_link *link,
 		struct link_resource *link_res,
 		struct dc_link_settings *link_settings);
 
-#if defined(CONFIG_DRM_AMD_DC_FP)
-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);
-#endif
-
 void reset_syncd_pipes_from_disabled_pipes(struct dc *dc,
 	struct dc_state *context);
 

drivers/gpu/drm/amd/display/dc/optc/dcn20/dcn20_optc.c

@@ -462,16 +462,6 @@ void optc2_setup_manual_trigger(struct timing_generator *optc)
 {
 	struct optc *optc1 = DCN10TG_FROM_TG(optc);
 
-	/* Set the min/max selectors unconditionally so that
-	 * DMCUB fw may change OTG timings when necessary
-	 * TODO: Remove the w/a after fixing the issue in DMCUB firmware
-	 */
-	REG_UPDATE_4(OTG_V_TOTAL_CONTROL,
-				 OTG_V_TOTAL_MIN_SEL, 1,
-				 OTG_V_TOTAL_MAX_SEL, 1,
-				 OTG_FORCE_LOCK_ON_EVENT, 0,
-				 OTG_SET_V_TOTAL_MIN_MASK, (1 << 1)); /* TRIGA */
-
 	REG_SET_8(OTG_TRIGA_CNTL, 0,
 			OTG_TRIGA_SOURCE_SELECT, 21,
 			OTG_TRIGA_SOURCE_PIPE_SELECT, optc->inst,

drivers/gpu/drm/amd/display/dc/resource/dcn21/dcn21_resource.c

@@ -581,32 +581,6 @@ static const struct resource_caps res_cap_rn = {
 		.num_dsc = 3,
 };
 
-#ifdef DIAGS_BUILD
-static const struct resource_caps res_cap_rn_FPGA_4pipe = {
-		.num_timing_generator = 4,
-		.num_opp = 4,
-		.num_video_plane = 4,
-		.num_audio = 7,
-		.num_stream_encoder = 4,
-		.num_pll = 4,
-		.num_dwb = 1,
-		.num_ddc = 4,
-		.num_dsc = 0,
-};
-
-static const struct resource_caps res_cap_rn_FPGA_2pipe_dsc = {
-		.num_timing_generator = 2,
-		.num_opp = 2,
-		.num_video_plane = 2,
-		.num_audio = 7,
-		.num_stream_encoder = 2,
-		.num_pll = 4,
-		.num_dwb = 1,
-		.num_ddc = 4,
-		.num_dsc = 2,
-};
-#endif
-
 static const struct dc_plane_cap plane_cap = {
 	.type = DC_PLANE_TYPE_DCN_UNIVERSAL,
 	.per_pixel_alpha = true,
@@ -1415,16 +1389,11 @@ static bool dcn21_resource_construct(
 	struct dc_context *ctx = dc->ctx;
 	struct irq_service_init_data init_data;
 	uint32_t pipe_fuses = read_pipe_fuses(ctx);
-	uint32_t num_pipes;
+	uint32_t num_pipes = 0;
 
 	ctx->dc_bios->regs = &bios_regs;
 
 	pool->base.res_cap = &res_cap_rn;
-#ifdef DIAGS_BUILD
-	if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment))
-		//pool->base.res_cap = &res_cap_nv10_FPGA_2pipe_dsc;
-		pool->base.res_cap = &res_cap_rn_FPGA_4pipe;
-#endif
 
 	pool->base.funcs = &dcn21_res_pool_funcs;