drm/amd/display: Clean FPGA code in dc

[Why]
Drop dead code for Linux.

[How]
Remove all IS_FPGA_MAXIMUS_DC and IS_DIAG_DC

Reviewed-by: Ariel Bernstein <eric.bernstein@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

63 files changed, 770 insertions, 1292 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.c
index 934e6423dc1a..1f36ad8a7de4 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.c
@@ -111,12 +111,10 @@ int dce112_set_clock(struct clk_mgr *clk_mgr_base, int requested_clk_khz)
 
 	bp->funcs->set_dce_clock(bp, &dce_clk_params);
 
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		if (dmcu && dmcu->funcs->is_dmcu_initialized(dmcu)) {
-			if (clk_mgr_dce->dfs_bypass_disp_clk != actual_clock)
-				dmcu->funcs->set_psr_wait_loop(dmcu,
-						actual_clock / 1000 / 7);
-		}
+	if (dmcu && dmcu->funcs->is_dmcu_initialized(dmcu)) {
+		if (clk_mgr_dce->dfs_bypass_disp_clk != actual_clock)
+			dmcu->funcs->set_psr_wait_loop(dmcu,
+					actual_clock / 1000 / 7);
 	}
 
 	clk_mgr_dce->dfs_bypass_disp_clk = actual_clock;
@@ -153,12 +151,10 @@ int dce112_set_dispclk(struct clk_mgr_internal *clk_mgr, int requested_clk_khz)
 		clk_mgr->cur_min_clks_state = DM_PP_CLOCKS_STATE_NOMINAL;
 
 
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		if (dmcu && dmcu->funcs->is_dmcu_initialized(dmcu)) {
-			if (clk_mgr->dfs_bypass_disp_clk != actual_clock)
-				dmcu->funcs->set_psr_wait_loop(dmcu,
-						actual_clock / 1000 / 7);
-		}
+	if (dmcu && dmcu->funcs->is_dmcu_initialized(dmcu)) {
+		if (clk_mgr->dfs_bypass_disp_clk != actual_clock)
+			dmcu->funcs->set_psr_wait_loop(dmcu,
+					actual_clock / 1000 / 7);
 	}
 
 	clk_mgr->dfs_bypass_disp_clk = actual_clock;
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_vbios_smu.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_vbios_smu.c
index 450eaead4f20..89b79dd39628 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_vbios_smu.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_vbios_smu.c
@@ -135,12 +135,10 @@ int rv1_vbios_smu_set_dispclk(struct clk_mgr_internal *clk_mgr, int requested_di
 			VBIOSSMC_MSG_SetDispclkFreq,
 			khz_to_mhz_ceil(requested_dispclk_khz));
 
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		if (dmcu && dmcu->funcs->is_dmcu_initialized(dmcu)) {
-			if (clk_mgr->dfs_bypass_disp_clk != actual_dispclk_set_mhz)
-				dmcu->funcs->set_psr_wait_loop(dmcu,
-						actual_dispclk_set_mhz / 7);
-		}
+	if (dmcu && dmcu->funcs->is_dmcu_initialized(dmcu)) {
+		if (clk_mgr->dfs_bypass_disp_clk != actual_dispclk_set_mhz)
+			dmcu->funcs->set_psr_wait_loop(dmcu,
+					actual_dispclk_set_mhz / 7);
 	}
 
 	return actual_dispclk_set_mhz * 1000;
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c
index 650f3b4b562e..c435f7632e8e 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c
@@ -531,6 +531,11 @@ void dcn20_clk_mgr_construct(
 		struct pp_smu_funcs *pp_smu,
 		struct dccg *dccg)
 {
+	int dprefclk_did;
+	int target_div;
+	uint32_t pll_req_reg;
+	struct fixed31_32 pll_req;
+
 	clk_mgr->base.ctx = ctx;
 	clk_mgr->pp_smu = pp_smu;
 	clk_mgr->base.funcs = &dcn2_funcs;
@@ -547,42 +552,34 @@ void dcn20_clk_mgr_construct(
 
 	clk_mgr->base.dprefclk_khz = 700000; // 700 MHz planned if VCO is 3.85 GHz, will be retrieved
 
-	if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment)) {
-		dcn2_funcs.update_clocks = dcn2_update_clocks_fpga;
-		clk_mgr->base.dentist_vco_freq_khz = 3850000;
+	/* DFS Slice 2 should be used for DPREFCLK */
+	dprefclk_did = REG_READ(CLK3_CLK2_DFS_CNTL);
+	/* Convert DPREFCLK DFS Slice DID to actual divider */
+	target_div = dentist_get_divider_from_did(dprefclk_did);
+	/* get FbMult value */
+	pll_req_reg = REG_READ(CLK3_CLK_PLL_REQ);
 
-	} else {
-		/* DFS Slice 2 should be used for DPREFCLK */
-		int dprefclk_did = REG_READ(CLK3_CLK2_DFS_CNTL);
-		/* Convert DPREFCLK DFS Slice DID to actual divider*/
-		int target_div = dentist_get_divider_from_did(dprefclk_did);
-
-		/* get FbMult value */
-		uint32_t pll_req_reg = REG_READ(CLK3_CLK_PLL_REQ);
-		struct fixed31_32 pll_req;
-
-		/* set up a fixed-point number
-		 * this works because the int part is on the right edge of the register
-		 * and the frac part is on the left edge
-		 */
+	/* set up a fixed-point number
+	 * this works because the int part is on the right edge of the register
+	 * and the frac part is on the left edge
+	 */
 
-		pll_req = dc_fixpt_from_int(pll_req_reg & clk_mgr->clk_mgr_mask->FbMult_int);
-		pll_req.value |= pll_req_reg & clk_mgr->clk_mgr_mask->FbMult_frac;
+	pll_req = dc_fixpt_from_int(pll_req_reg & clk_mgr->clk_mgr_mask->FbMult_int);
+	pll_req.value |= pll_req_reg & clk_mgr->clk_mgr_mask->FbMult_frac;
 
-		/* multiply by REFCLK period */
-		pll_req = dc_fixpt_mul_int(pll_req, 100000);
+	/* multiply by REFCLK period */
+	pll_req = dc_fixpt_mul_int(pll_req, 100000);
 
-		/* integer part is now VCO frequency in kHz */
-		clk_mgr->base.dentist_vco_freq_khz = dc_fixpt_floor(pll_req);
+	/* integer part is now VCO frequency in kHz */
+	clk_mgr->base.dentist_vco_freq_khz = dc_fixpt_floor(pll_req);
 
-		/* in case we don't get a value from the register, use default */
-		if (clk_mgr->base.dentist_vco_freq_khz == 0)
-			clk_mgr->base.dentist_vco_freq_khz = 3850000;
+	/* in case we don't get a value from the register, use default */
+	if (clk_mgr->base.dentist_vco_freq_khz == 0)
+		clk_mgr->base.dentist_vco_freq_khz = 3850000;
 
-		/* Calculate the DPREFCLK in kHz.*/
-		clk_mgr->base.dprefclk_khz = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR
-			* clk_mgr->base.dentist_vco_freq_khz) / target_div;
-	}
+	/* Calculate the DPREFCLK in kHz.*/
+	clk_mgr->base.dprefclk_khz = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR
+		* clk_mgr->base.dentist_vco_freq_khz) / target_div;
 	//Integrated_info table does not exist on dGPU projects so should not be referenced
 	//anywhere in code for dGPUs.
 	//Also there is no plan for now that DFS BYPASS will be used on NV10/12/14.
@@ -590,4 +587,3 @@ void dcn20_clk_mgr_construct(
 
 	dce_clock_read_ss_info(clk_mgr);
 }
-
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn201/dcn201_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn201/dcn201_clk_mgr.c
index 811720749faf..694fe4271b4d 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn201/dcn201_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn201/dcn201_clk_mgr.c
@@ -190,23 +190,17 @@ void dcn201_clk_mgr_construct(struct dc_context *ctx,
 	clk_mgr->dprefclk_ss_divider = 1000;
 	clk_mgr->ss_on_dprefclk = false;
 
-	if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment)) {
-		dcn201_funcs.update_clocks = dcn2_update_clocks_fpga;
-		clk_mgr->base.dprefclk_khz = 600000;
-		clk_mgr->base.dentist_vco_freq_khz = 3000000;
-	} else {
-		clk_mgr->base.dprefclk_khz = REG_READ(CLK4_CLK2_CURRENT_CNT);
-		clk_mgr->base.dprefclk_khz *= 100;
+	clk_mgr->base.dprefclk_khz = REG_READ(CLK4_CLK2_CURRENT_CNT);
+	clk_mgr->base.dprefclk_khz *= 100;
 
-		if (clk_mgr->base.dprefclk_khz == 0)
-			clk_mgr->base.dprefclk_khz = 600000;
+	if (clk_mgr->base.dprefclk_khz == 0)
+		clk_mgr->base.dprefclk_khz = 600000;
 
-		REG_GET(CLK4_CLK_PLL_REQ, FbMult_int, &clk_mgr->base.dentist_vco_freq_khz);
-		clk_mgr->base.dentist_vco_freq_khz *= 100000;
+	REG_GET(CLK4_CLK_PLL_REQ, FbMult_int, &clk_mgr->base.dentist_vco_freq_khz);
+	clk_mgr->base.dentist_vco_freq_khz *= 100000;
 
-		if (clk_mgr->base.dentist_vco_freq_khz == 0)
-			clk_mgr->base.dentist_vco_freq_khz = 3000000;
-	}
+	if (clk_mgr->base.dentist_vco_freq_khz == 0)
+		clk_mgr->base.dentist_vco_freq_khz = 3000000;
 
 	if (!debug->disable_dfs_bypass && bp->integrated_info)
 		if (bp->integrated_info->gpu_cap_info & DFS_BYPASS_ENABLE)
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
index bd9fd0b54f46..0c6a4ab72b1d 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
@@ -705,6 +705,7 @@ void rn_clk_mgr_construct(
 	struct dpm_clocks clock_table = { 0 };
 	enum pp_smu_status status = 0;
 	int is_green_sardine = 0;
+	struct clk_log_info log_info = {0};
 
 #if defined(CONFIG_DRM_AMD_DC_FP)
 	is_green_sardine = ASICREV_IS_GREEN_SARDINE(ctx->asic_id.hw_internal_rev);
@@ -725,48 +726,41 @@ void rn_clk_mgr_construct(
 
 	clk_mgr->smu_ver = rn_vbios_smu_get_smu_version(clk_mgr);
 
-	if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment)) {
-		dcn21_funcs.update_clocks = dcn2_update_clocks_fpga;
+	clk_mgr->periodic_retraining_disabled = rn_vbios_smu_is_periodic_retraining_disabled(clk_mgr);
+
+	/* SMU Version 55.51.0 and up no longer have an issue
+	 * that needs to limit minimum dispclk */
+	if (clk_mgr->smu_ver >= SMU_VER_55_51_0)
+		debug->min_disp_clk_khz = 0;
+
+	/* TODO: Check we get what we expect during bringup */
+	clk_mgr->base.dentist_vco_freq_khz = get_vco_frequency_from_reg(clk_mgr);
+
+	/* in case we don't get a value from the register, use default */
+	if (clk_mgr->base.dentist_vco_freq_khz == 0)
 		clk_mgr->base.dentist_vco_freq_khz = 3600000;
-	} else {
-		struct clk_log_info log_info = {0};
-
-		clk_mgr->periodic_retraining_disabled = rn_vbios_smu_is_periodic_retraining_disabled(clk_mgr);
-
-		/* SMU Version 55.51.0 and up no longer have an issue
-		 * that needs to limit minimum dispclk */
-		if (clk_mgr->smu_ver >= SMU_VER_55_51_0)
-			debug->min_disp_clk_khz = 0;
-
-		/* TODO: Check we get what we expect during bringup */
-		clk_mgr->base.dentist_vco_freq_khz = get_vco_frequency_from_reg(clk_mgr);
-
-		/* in case we don't get a value from the register, use default */
-		if (clk_mgr->base.dentist_vco_freq_khz == 0)
-			clk_mgr->base.dentist_vco_freq_khz = 3600000;
-
-		if (ctx->dc_bios->integrated_info->memory_type == LpDdr4MemType) {
-			if (clk_mgr->periodic_retraining_disabled) {
-				rn_bw_params.wm_table = lpddr4_wm_table_with_disabled_ppt;
-			} else {
-				if (is_green_sardine)
-					rn_bw_params.wm_table = lpddr4_wm_table_gs;
-				else
-					rn_bw_params.wm_table = lpddr4_wm_table_rn;
-			}
+
+	if (ctx->dc_bios->integrated_info->memory_type == LpDdr4MemType) {
+		if (clk_mgr->periodic_retraining_disabled) {
+			rn_bw_params.wm_table = lpddr4_wm_table_with_disabled_ppt;
 		} else {
 			if (is_green_sardine)
-				rn_bw_params.wm_table = ddr4_wm_table_gs;
-			else {
-				if (ctx->dc->config.is_single_rank_dimm)
-					rn_bw_params.wm_table = ddr4_1R_wm_table_rn;
-				else
-					rn_bw_params.wm_table = ddr4_wm_table_rn;
-			}
+				rn_bw_params.wm_table = lpddr4_wm_table_gs;
+			else
+				rn_bw_params.wm_table = lpddr4_wm_table_rn;
+		}
+	} else {
+		if (is_green_sardine)
+			rn_bw_params.wm_table = ddr4_wm_table_gs;
+		else {
+			if (ctx->dc->config.is_single_rank_dimm)
+				rn_bw_params.wm_table = ddr4_1R_wm_table_rn;
+			else
+				rn_bw_params.wm_table = ddr4_wm_table_rn;
 		}
-		/* Saved clocks configured at boot for debug purposes */
-		rn_dump_clk_registers(&clk_mgr->base.boot_snapshot, &clk_mgr->base, &log_info);
 	}
+	/* Saved clocks configured at boot for debug purposes */
+	rn_dump_clk_registers(&clk_mgr->base.boot_snapshot, &clk_mgr->base, &log_info);
 
 	clk_mgr->base.dprefclk_khz = 600000;
 	dce_clock_read_ss_info(clk_mgr);
@@ -786,9 +780,8 @@ void rn_clk_mgr_construct(
 		}
 	}
 
-	if (!IS_FPGA_MAXIMUS_DC(ctx->dce_environment) && clk_mgr->smu_ver >= 0x00371500) {
-		/* enable powerfeatures when displaycount goes to 0 */
+	/* enable powerfeatures when displaycount goes to 0 */
+	if (clk_mgr->smu_ver >= 0x00371500)
 		rn_vbios_smu_enable_48mhz_tmdp_refclk_pwrdwn(clk_mgr, !debug->disable_48mhz_pwrdwn);
-	}
 }
 
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.c
index 27fbe906682f..8c9d45e5b13b 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.c
@@ -147,17 +147,14 @@ int rn_vbios_smu_set_dispclk(struct clk_mgr_internal *clk_mgr, int requested_dis
 			VBIOSSMC_MSG_SetDispclkFreq,
 			khz_to_mhz_ceil(requested_dispclk_khz));
 
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		if (dmcu && dmcu->funcs->is_dmcu_initialized(dmcu)) {
-			if (clk_mgr->dfs_bypass_disp_clk != actual_dispclk_set_mhz)
-				dmcu->funcs->set_psr_wait_loop(dmcu,
-						actual_dispclk_set_mhz / 7);
-		}
+	if (dmcu && dmcu->funcs->is_dmcu_initialized(dmcu)) {
+		if (clk_mgr->dfs_bypass_disp_clk != actual_dispclk_set_mhz)
+			dmcu->funcs->set_psr_wait_loop(dmcu,
+					actual_dispclk_set_mhz / 7);
 	}
 
 	// pmfw always set clock more than or equal requested clock
-	if (!IS_DIAG_DC(dc->ctx->dce_environment))
-		ASSERT(actual_dispclk_set_mhz >= khz_to_mhz_ceil(requested_dispclk_khz));
+	ASSERT(actual_dispclk_set_mhz >= khz_to_mhz_ceil(requested_dispclk_khz));
 
 	return actual_dispclk_set_mhz * 1000;
 }
@@ -221,15 +218,13 @@ void rn_vbios_smu_set_phyclk(struct clk_mgr_internal *clk_mgr, int requested_phy
 int rn_vbios_smu_set_dppclk(struct clk_mgr_internal *clk_mgr, int requested_dpp_khz)
 {
 	int actual_dppclk_set_mhz = -1;
-	struct dc *dc = clk_mgr->base.ctx->dc;
 
 	actual_dppclk_set_mhz = rn_vbios_smu_send_msg_with_param(
 			clk_mgr,
 			VBIOSSMC_MSG_SetDppclkFreq,
 			khz_to_mhz_ceil(requested_dpp_khz));
 
-	if (!IS_DIAG_DC(dc->ctx->dce_environment))
-		ASSERT(actual_dppclk_set_mhz >= khz_to_mhz_ceil(requested_dpp_khz));
+	ASSERT(actual_dppclk_set_mhz >= khz_to_mhz_ceil(requested_dpp_khz));
 
 	return actual_dppclk_set_mhz * 1000;
 }
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c
index 3908e7cfd6cb..3271c8c7905d 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c
@@ -521,6 +521,8 @@ void dcn3_clk_mgr_construct(
 		struct pp_smu_funcs *pp_smu,
 		struct dccg *dccg)
 {
+	struct clk_state_registers_and_bypass s = { 0 };
+
 	clk_mgr->base.ctx = ctx;
 	clk_mgr->base.funcs = &dcn3_funcs;
 	clk_mgr->regs = &clk_mgr_regs;
@@ -537,27 +539,19 @@ void dcn3_clk_mgr_construct(
 
 	clk_mgr->base.dprefclk_khz = 730000; // 700 MHz planned if VCO is 3.85 GHz, will be retrieved
 
-	if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment)) {
-		clk_mgr->base.funcs  = &dcn3_fpga_funcs;
-		clk_mgr->base.dentist_vco_freq_khz = 3650000;
-
-	} else {
-		struct clk_state_registers_and_bypass s = { 0 };
+	/* integer part is now VCO frequency in kHz */
+	clk_mgr->base.dentist_vco_freq_khz = dcn30_get_vco_frequency_from_reg(clk_mgr);
 
-		/* integer part is now VCO frequency in kHz */
-		clk_mgr->base.dentist_vco_freq_khz = dcn30_get_vco_frequency_from_reg(clk_mgr);
-
-		/* in case we don't get a value from the register, use default */
-		if (clk_mgr->base.dentist_vco_freq_khz == 0)
-			clk_mgr->base.dentist_vco_freq_khz = 3650000;
-		/* Convert dprefclk units from MHz to KHz */
-		/* Value already divided by 10, some resolution lost */
+	/* in case we don't get a value from the register, use default */
+	if (clk_mgr->base.dentist_vco_freq_khz == 0)
+		clk_mgr->base.dentist_vco_freq_khz = 3650000;
+	/* Convert dprefclk units from MHz to KHz */
+	/* Value already divided by 10, some resolution lost */
 
-		/*TODO: uncomment assert once dcn3_dump_clk_registers is implemented */
-		//ASSERT(s.dprefclk != 0);
-		if (s.dprefclk != 0)
-			clk_mgr->base.dprefclk_khz = s.dprefclk * 1000;
-	}
+	/*TODO: uncomment assert once dcn3_dump_clk_registers is implemented */
+	//ASSERT(s.dprefclk != 0);
+	if (s.dprefclk != 0)
+		clk_mgr->base.dprefclk_khz = s.dprefclk * 1000;
 
 	clk_mgr->dfs_bypass_enabled = false;
 
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c
index 01383aac6b41..a5489fe6875f 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c
@@ -117,7 +117,7 @@ static void vg_update_clocks(struct clk_mgr *clk_mgr_base,
 
 			display_count = vg_get_active_display_cnt_wa(dc, context);
 			/* if we can go lower, go lower */
-			if (display_count == 0 && !IS_DIAG_DC(dc->ctx->dce_environment)) {
+			if (display_count == 0) {
 				union display_idle_optimization_u idle_info = { 0 };
 
 				idle_info.idle_info.df_request_disabled = 1;
@@ -151,10 +151,8 @@ static void vg_update_clocks(struct clk_mgr *clk_mgr_base,
 	}
 
 	// workaround: Limit dppclk to 100Mhz to avoid lower eDP panel switch to plus 4K monitor underflow.
-	if (!IS_DIAG_DC(dc->ctx->dce_environment)) {
-		if (new_clocks->dppclk_khz < 100000)
-			new_clocks->dppclk_khz = 100000;
-	}
+	if (new_clocks->dppclk_khz < 100000)
+		new_clocks->dppclk_khz = 100000;
 
 	if (should_set_clock(safe_to_lower, new_clocks->dppclk_khz, clk_mgr->base.clks.dppclk_khz)) {
 		if (clk_mgr->base.clks.dppclk_khz > new_clocks->dppclk_khz)
@@ -664,6 +662,7 @@ void vg_clk_mgr_construct(
 		struct dccg *dccg)
 {
 	struct smu_dpm_clks smu_dpm_clks = { 0 };
+	struct clk_log_info log_info = {0};
 
 	clk_mgr->base.base.ctx = ctx;
 	clk_mgr->base.base.funcs = &vg_funcs;
@@ -703,32 +702,25 @@ void vg_clk_mgr_construct(
 
 	ASSERT(smu_dpm_clks.dpm_clks);
 
-	if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment)) {
-		vg_funcs.update_clocks = dcn2_update_clocks_fpga;
-		clk_mgr->base.base.dentist_vco_freq_khz = 3600000;
-	} else {
-		struct clk_log_info log_info = {0};
+	clk_mgr->base.smu_ver = dcn301_smu_get_smu_version(&clk_mgr->base);
 
-		clk_mgr->base.smu_ver = dcn301_smu_get_smu_version(&clk_mgr->base);
+	if (clk_mgr->base.smu_ver)
+		clk_mgr->base.smu_present = true;
 
-		if (clk_mgr->base.smu_ver)
-			clk_mgr->base.smu_present = true;
+	/* TODO: Check we get what we expect during bringup */
+	clk_mgr->base.base.dentist_vco_freq_khz = get_vco_frequency_from_reg(&clk_mgr->base);
 
-		/* TODO: Check we get what we expect during bringup */
-		clk_mgr->base.base.dentist_vco_freq_khz = get_vco_frequency_from_reg(&clk_mgr->base);
-
-		/* in case we don't get a value from the register, use default */
-		if (clk_mgr->base.base.dentist_vco_freq_khz == 0)
-			clk_mgr->base.base.dentist_vco_freq_khz = 3600000;
+	/* in case we don't get a value from the register, use default */
+	if (clk_mgr->base.base.dentist_vco_freq_khz == 0)
+		clk_mgr->base.base.dentist_vco_freq_khz = 3600000;
 
-		if (ctx->dc_bios->integrated_info->memory_type == LpDdr5MemType) {
-			vg_bw_params.wm_table = lpddr5_wm_table;
-		} else {
-			vg_bw_params.wm_table = ddr4_wm_table;
-		}
-		/* Saved clocks configured at boot for debug purposes */
-		vg_dump_clk_registers(&clk_mgr->base.base.boot_snapshot, &clk_mgr->base.base, &log_info);
+	if (ctx->dc_bios->integrated_info->memory_type == LpDdr5MemType) {
+		vg_bw_params.wm_table = lpddr5_wm_table;
+	} else {
+		vg_bw_params.wm_table = ddr4_wm_table;
 	}
+	/* Saved clocks configured at boot for debug purposes */
+	vg_dump_clk_registers(&clk_mgr->base.base.boot_snapshot, &clk_mgr->base.base, &log_info);
 
 	clk_mgr->base.base.dprefclk_khz = 600000;
 	dce_clock_read_ss_info(&clk_mgr->base);
@@ -746,12 +738,6 @@ void vg_clk_mgr_construct(
 	if (smu_dpm_clks.dpm_clks && smu_dpm_clks.mc_address.quad_part != 0)
 		dm_helpers_free_gpu_mem(clk_mgr->base.base.ctx, DC_MEM_ALLOC_TYPE_FRAME_BUFFER,
 				smu_dpm_clks.dpm_clks);
-/*
-	if (!IS_FPGA_MAXIMUS_DC(ctx->dce_environment) && clk_mgr->base.smu_ver) {
-		 enable powerfeatures when displaycount goes to 0
-		dcn301_smu_enable_phy_refclk_pwrdwn(clk_mgr, !debug->disable_48mhz_pwrdwn);
-	}
-*/
 }
 
 void vg_clk_mgr_destroy(struct clk_mgr_internal *clk_mgr_int)
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
index 3c743cd3d3f0..7ccd96959256 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
@@ -205,10 +205,8 @@ void dcn31_update_clocks(struct clk_mgr *clk_mgr_base,
 	}
 
 	// workaround: Limit dppclk to 100Mhz to avoid lower eDP panel switch to plus 4K monitor underflow.
-	if (!IS_DIAG_DC(dc->ctx->dce_environment)) {
-		if (new_clocks->dppclk_khz < 100000)
-			new_clocks->dppclk_khz = 100000;
-	}
+	if (new_clocks->dppclk_khz < 100000)
+		new_clocks->dppclk_khz = 100000;
 
 	if (should_set_clock(safe_to_lower, new_clocks->dppclk_khz, clk_mgr->base.clks.dppclk_khz)) {
 		if (clk_mgr->base.clks.dppclk_khz > new_clocks->dppclk_khz)
@@ -672,6 +670,7 @@ void dcn31_clk_mgr_construct(
 		struct dccg *dccg)
 {
 	struct dcn31_smu_dpm_clks smu_dpm_clks = { 0 };
+	struct clk_log_info log_info = {0};
 
 	clk_mgr->base.base.ctx = ctx;
 	clk_mgr->base.base.funcs = &dcn31_funcs;
@@ -711,29 +710,22 @@ void dcn31_clk_mgr_construct(
 
 	ASSERT(smu_dpm_clks.dpm_clks);
 
-	if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment)) {
-		clk_mgr->base.base.funcs = &dcn3_fpga_funcs;
-	} else {
-		struct clk_log_info log_info = {0};
-
-		clk_mgr->base.smu_ver = dcn31_smu_get_smu_version(&clk_mgr->base);
+	clk_mgr->base.smu_ver = dcn31_smu_get_smu_version(&clk_mgr->base);
 
-		if (clk_mgr->base.smu_ver)
-			clk_mgr->base.smu_present = true;
+	if (clk_mgr->base.smu_ver)
+		clk_mgr->base.smu_present = true;
 
-		/* TODO: Check we get what we expect during bringup */
-		clk_mgr->base.base.dentist_vco_freq_khz = get_vco_frequency_from_reg(&clk_mgr->base);
-
-		if (ctx->dc_bios->integrated_info->memory_type == LpDdr5MemType) {
-			dcn31_bw_params.wm_table = lpddr5_wm_table;
-		} else {
-			dcn31_bw_params.wm_table = ddr5_wm_table;
-		}
-		/* Saved clocks configured at boot for debug purposes */
-		dcn31_dump_clk_registers(&clk_mgr->base.base.boot_snapshot,
-					 &clk_mgr->base.base, &log_info);
+	/* TODO: Check we get what we expect during bringup */
+	clk_mgr->base.base.dentist_vco_freq_khz = get_vco_frequency_from_reg(&clk_mgr->base);
 
+	if (ctx->dc_bios->integrated_info->memory_type == LpDdr5MemType) {
+		dcn31_bw_params.wm_table = lpddr5_wm_table;
+	} else {
+		dcn31_bw_params.wm_table = ddr5_wm_table;
 	}
+	/* Saved clocks configured at boot for debug purposes */
+	dcn31_dump_clk_registers(&clk_mgr->base.base.boot_snapshot,
+				 &clk_mgr->base.base, &log_info);
 
 	clk_mgr->base.base.dprefclk_khz = 600000;
 	clk_mgr->base.base.clks.ref_dtbclk_khz = 600000;
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c
index 2a0c696f5861..2f7c8996b19d 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c
@@ -241,10 +241,8 @@ void dcn314_update_clocks(struct clk_mgr *clk_mgr_base,
 	}
 
 	// workaround: Limit dppclk to 100Mhz to avoid lower eDP panel switch to plus 4K monitor underflow.
-	if (!IS_DIAG_DC(dc->ctx->dce_environment)) {
-		if (new_clocks->dppclk_khz < 100000)
-			new_clocks->dppclk_khz = 100000;
-	}
+	if (new_clocks->dppclk_khz < 100000)
+		new_clocks->dppclk_khz = 100000;
 
 	if (should_set_clock(safe_to_lower, new_clocks->dppclk_khz, clk_mgr->base.clks.dppclk_khz)) {
 		if (clk_mgr->base.clks.dppclk_khz > new_clocks->dppclk_khz)
@@ -724,6 +722,7 @@ void dcn314_clk_mgr_construct(
 		struct dccg *dccg)
 {
 	struct dcn314_smu_dpm_clks smu_dpm_clks = { 0 };
+	struct clk_log_info log_info = {0};
 
 	clk_mgr->base.base.ctx = ctx;
 	clk_mgr->base.base.funcs = &dcn314_funcs;
@@ -763,29 +762,22 @@ void dcn314_clk_mgr_construct(
 
 	ASSERT(smu_dpm_clks.dpm_clks);
 
-	if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment)) {
-		clk_mgr->base.base.funcs = &dcn3_fpga_funcs;
-	} else {
-		struct clk_log_info log_info = {0};
-
-		clk_mgr->base.smu_ver = dcn314_smu_get_smu_version(&clk_mgr->base);
+	clk_mgr->base.smu_ver = dcn314_smu_get_smu_version(&clk_mgr->base);
 
-		if (clk_mgr->base.smu_ver)
-			clk_mgr->base.smu_present = true;
+	if (clk_mgr->base.smu_ver)
+		clk_mgr->base.smu_present = true;
 
-		/* TODO: Check we get what we expect during bringup */
-		clk_mgr->base.base.dentist_vco_freq_khz = get_vco_frequency_from_reg(&clk_mgr->base);
+	/* TODO: Check we get what we expect during bringup */
+	clk_mgr->base.base.dentist_vco_freq_khz = get_vco_frequency_from_reg(&clk_mgr->base);
 
-		if (ctx->dc_bios->integrated_info->memory_type == LpDdr5MemType)
-			dcn314_bw_params.wm_table = lpddr5_wm_table;
-		else
-			dcn314_bw_params.wm_table = ddr5_wm_table;
+	if (ctx->dc_bios->integrated_info->memory_type == LpDdr5MemType)
+		dcn314_bw_params.wm_table = lpddr5_wm_table;
+	else
+		dcn314_bw_params.wm_table = ddr5_wm_table;
 
-		/* Saved clocks configured at boot for debug purposes */
-		dcn314_dump_clk_registers(&clk_mgr->base.base.boot_snapshot,
-					  &clk_mgr->base.base, &log_info);
-
-	}
+	/* Saved clocks configured at boot for debug purposes */
+	dcn314_dump_clk_registers(&clk_mgr->base.base.boot_snapshot,
+				  &clk_mgr->base.base, &log_info);
 
 	clk_mgr->base.base.dprefclk_khz = 600000;
 	clk_mgr->base.base.clks.ref_dtbclk_khz = 600000;
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c
index 300c6a5872d0..b2c4f97afc8b 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c
@@ -184,12 +184,10 @@ static void dcn315_update_clocks(struct clk_mgr *clk_mgr_base,
 	}
 
 	// workaround: Limit dppclk to 100Mhz to avoid lower eDP panel switch to plus 4K monitor underflow.
-	if (!IS_DIAG_DC(dc->ctx->dce_environment)) {
-		if (new_clocks->dppclk_khz < MIN_DPP_DISP_CLK)
-			new_clocks->dppclk_khz = MIN_DPP_DISP_CLK;
-		if (new_clocks->dispclk_khz < MIN_DPP_DISP_CLK)
-			new_clocks->dispclk_khz = MIN_DPP_DISP_CLK;
-	}
+	if (new_clocks->dppclk_khz < MIN_DPP_DISP_CLK)
+		new_clocks->dppclk_khz = MIN_DPP_DISP_CLK;
+	if (new_clocks->dispclk_khz < MIN_DPP_DISP_CLK)
+		new_clocks->dispclk_khz = MIN_DPP_DISP_CLK;
 
 	if (should_set_clock(safe_to_lower, new_clocks->dppclk_khz, clk_mgr->base.clks.dppclk_khz)) {
 		if (clk_mgr->base.clks.dppclk_khz > new_clocks->dppclk_khz)
@@ -600,6 +598,7 @@ void dcn315_clk_mgr_construct(
 		struct dccg *dccg)
 {
 	struct dcn315_smu_dpm_clks smu_dpm_clks = { 0 };
+	struct clk_log_info log_info = {0};
 
 	clk_mgr->base.base.ctx = ctx;
 	clk_mgr->base.base.funcs = &dcn315_funcs;
@@ -639,26 +638,19 @@ void dcn315_clk_mgr_construct(
 
 	ASSERT(smu_dpm_clks.dpm_clks);
 
-	if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment)) {
-		clk_mgr->base.base.funcs = &dcn3_fpga_funcs;
-	} else {
-		struct clk_log_info log_info = {0};
-
-		clk_mgr->base.smu_ver = dcn315_smu_get_smu_version(&clk_mgr->base);
+	clk_mgr->base.smu_ver = dcn315_smu_get_smu_version(&clk_mgr->base);
 
-		if (clk_mgr->base.smu_ver > 0)
-			clk_mgr->base.smu_present = true;
-
-		if (ctx->dc_bios->integrated_info->memory_type == LpDdr5MemType) {
-			dcn315_bw_params.wm_table = lpddr5_wm_table;
-		} else {
-			dcn315_bw_params.wm_table = ddr5_wm_table;
-		}
-		/* Saved clocks configured at boot for debug purposes */
-		dcn315_dump_clk_registers(&clk_mgr->base.base.boot_snapshot,
-					  &clk_mgr->base.base, &log_info);
+	if (clk_mgr->base.smu_ver > 0)
+		clk_mgr->base.smu_present = true;
 
+	if (ctx->dc_bios->integrated_info->memory_type == LpDdr5MemType) {
+		dcn315_bw_params.wm_table = lpddr5_wm_table;
+	} else {
+		dcn315_bw_params.wm_table = ddr5_wm_table;
 	}
+	/* Saved clocks configured at boot for debug purposes */
+	dcn315_dump_clk_registers(&clk_mgr->base.base.boot_snapshot,
+				  &clk_mgr->base.base, &log_info);
 
 	clk_mgr->base.base.dprefclk_khz = 600000;
 	clk_mgr->base.base.dprefclk_khz = dcn315_smu_get_dpref_clk(&clk_mgr->base);
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c
index 538126cefd4d..d7de756301cf 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c
@@ -207,12 +207,10 @@ static void dcn316_update_clocks(struct clk_mgr *clk_mgr_base,
 	}
 
 	// workaround: Limit dppclk to 100Mhz to avoid lower eDP panel switch to plus 4K monitor underflow.
-	if (!IS_DIAG_DC(dc->ctx->dce_environment)) {
-		if (new_clocks->dppclk_khz < 100000)
-			new_clocks->dppclk_khz = 100000;
-		if (new_clocks->dispclk_khz < 100000)
-			new_clocks->dispclk_khz = 100000;
-	}
+	if (new_clocks->dppclk_khz < 100000)
+		new_clocks->dppclk_khz = 100000;
+	if (new_clocks->dispclk_khz < 100000)
+		new_clocks->dispclk_khz = 100000;
 
 	if (should_set_clock(safe_to_lower, new_clocks->dppclk_khz, clk_mgr->base.clks.dppclk_khz)) {
 		if (clk_mgr->base.clks.dppclk_khz > new_clocks->dppclk_khz)
@@ -616,6 +614,7 @@ void dcn316_clk_mgr_construct(
 		struct dccg *dccg)
 {
 	struct dcn316_smu_dpm_clks smu_dpm_clks = { 0 };
+	struct clk_log_info log_info = {0};
 
 	clk_mgr->base.base.ctx = ctx;
 	clk_mgr->base.base.funcs = &dcn316_funcs;
@@ -655,35 +654,27 @@ void dcn316_clk_mgr_construct(
 
 	ASSERT(smu_dpm_clks.dpm_clks);
 
-	if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment)) {
-		clk_mgr->base.base.funcs = &dcn3_fpga_funcs;
-		clk_mgr->base.base.dentist_vco_freq_khz = 2500000;
-	} else {
-		struct clk_log_info log_info = {0};
-
-		clk_mgr->base.smu_ver = dcn316_smu_get_smu_version(&clk_mgr->base);
+	clk_mgr->base.smu_ver = dcn316_smu_get_smu_version(&clk_mgr->base);
 
-		if (clk_mgr->base.smu_ver > 0)
-			clk_mgr->base.smu_present = true;
+	if (clk_mgr->base.smu_ver > 0)
+		clk_mgr->base.smu_present = true;
 
-		// Skip this for now as it did not work on DCN315, renable during bring up
-		clk_mgr->base.base.dentist_vco_freq_khz = get_vco_frequency_from_reg(&clk_mgr->base);
+	// Skip this for now as it did not work on DCN315, renable during bring up
+	clk_mgr->base.base.dentist_vco_freq_khz = get_vco_frequency_from_reg(&clk_mgr->base);
 
-		/* in case we don't get a value from the register, use default */
-		if (clk_mgr->base.base.dentist_vco_freq_khz == 0)
-			clk_mgr->base.base.dentist_vco_freq_khz = 2500000; /* 2400MHz */
+	/* in case we don't get a value from the register, use default */
+	if (clk_mgr->base.base.dentist_vco_freq_khz == 0)
+		clk_mgr->base.base.dentist_vco_freq_khz = 2500000; /* 2400MHz */
 
 
-		if (ctx->dc_bios->integrated_info->memory_type == LpDdr5MemType) {
-			dcn316_bw_params.wm_table = lpddr5_wm_table;
-		} else {
-			dcn316_bw_params.wm_table = ddr4_wm_table;
-		}
-		/* Saved clocks configured at boot for debug purposes */
-		dcn316_dump_clk_registers(&clk_mgr->base.base.boot_snapshot,
-					  &clk_mgr->base.base, &log_info);
-
+	if (ctx->dc_bios->integrated_info->memory_type == LpDdr5MemType) {
+		dcn316_bw_params.wm_table = lpddr5_wm_table;
+	} else {
+		dcn316_bw_params.wm_table = ddr4_wm_table;
 	}
+	/* Saved clocks configured at boot for debug purposes */
+	dcn316_dump_clk_registers(&clk_mgr->base.base.boot_snapshot,
+				  &clk_mgr->base.base, &log_info);
 
 	clk_mgr->base.base.dprefclk_khz = 600000;
 	clk_mgr->base.base.dprefclk_khz = dcn316_smu_get_dpref_clk(&clk_mgr->base);
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
index 1df623b298a9..20bff6a346ba 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
@@ -941,7 +941,6 @@ void dcn32_clk_mgr_construct(
 			clk_mgr->base.clks.ref_dtbclk_khz = 268750;
 	}
 
-
 	/* integer part is now VCO frequency in kHz */
 	clk_mgr->base.dentist_vco_freq_khz = dcn32_get_vco_frequency_from_reg(clk_mgr);
 
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 9f8efee27721..af929ee11af5 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -3588,29 +3588,27 @@ static void commit_planes_for_stream(struct dc *dc,
 		}
 	}
 
-	if (!IS_DIAG_DC(dc->ctx->dce_environment)) {
-		for (i = 0; i < surface_count; i++) {
-			struct dc_plane_state *plane_state = srf_updates[i].surface;
-			/*set logical flag for lock/unlock use*/
-			for (j = 0; j < dc->res_pool->pipe_count; j++) {
-				struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[j];
-				if (!pipe_ctx->plane_state)
-					continue;
-				if (should_update_pipe_for_plane(context, pipe_ctx, plane_state))
-					continue;
-				pipe_ctx->plane_state->triplebuffer_flips = false;
-				if (update_type == UPDATE_TYPE_FAST &&
-					dc->hwss.program_triplebuffer != NULL &&
-					!pipe_ctx->plane_state->flip_immediate && dc->debug.enable_tri_buf) {
-						/*triple buffer for VUpdate  only*/
-						pipe_ctx->plane_state->triplebuffer_flips = true;
-				}
-			}
-			if (update_type == UPDATE_TYPE_FULL) {
-				/* force vsync flip when reconfiguring pipes to prevent underflow */
-				plane_state->flip_immediate = false;
+	for (i = 0; i < surface_count; i++) {
+		struct dc_plane_state *plane_state = srf_updates[i].surface;
+		/*set logical flag for lock/unlock use*/
+		for (j = 0; j < dc->res_pool->pipe_count; j++) {
+			struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[j];
+			if (!pipe_ctx->plane_state)
+				continue;
+			if (should_update_pipe_for_plane(context, pipe_ctx, plane_state))
+				continue;
+			pipe_ctx->plane_state->triplebuffer_flips = false;
+			if (update_type == UPDATE_TYPE_FAST &&
+				dc->hwss.program_triplebuffer != NULL &&
+				!pipe_ctx->plane_state->flip_immediate && dc->debug.enable_tri_buf) {
+					/*triple buffer for VUpdate  only*/
+					pipe_ctx->plane_state->triplebuffer_flips = true;
 			}
 		}
+		if (update_type == UPDATE_TYPE_FULL) {
+			/* force vsync flip when reconfiguring pipes to prevent underflow */
+			plane_state->flip_immediate = false;
+		}
 	}
 
 	// Update Type FULL, Surface updates
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
index 72b261ad9587..0d3ec50b1385 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
@@ -490,25 +490,6 @@ bool dc_stream_add_writeback(struct dc *dc,
 		struct dwbc *dwb = dc->res_pool->dwbc[wb_info->dwb_pipe_inst];
 		dwb->otg_inst = stream_status->primary_otg_inst;
 	}
-	if (IS_DIAG_DC(dc->ctx->dce_environment)) {
-		if (!dc->hwss.update_bandwidth(dc, dc->current_state)) {
-			dm_error("DC: update_bandwidth failed!\n");
-			return false;
-		}
-
-		/* enable writeback */
-		if (dc->hwss.enable_writeback) {
-			struct dwbc *dwb = dc->res_pool->dwbc[wb_info->dwb_pipe_inst];
-
-			if (dwb->funcs->is_enabled(dwb)) {
-				/* writeback pipe already enabled, only need to update */
-				dc->hwss.update_writeback(dc, wb_info, dc->current_state);
-			} else {
-				/* Enable writeback pipe from scratch*/
-				dc->hwss.enable_writeback(dc, wb_info, dc->current_state);
-			}
-		}
-	}
 	return true;
 }
 
@@ -553,17 +534,6 @@ bool dc_stream_remove_writeback(struct dc *dc,
 	}
 	stream->num_wb_info = j;
 
-	if (IS_DIAG_DC(dc->ctx->dce_environment)) {
-		/* recalculate and apply DML parameters */
-		if (!dc->hwss.update_bandwidth(dc, dc->current_state)) {
-			dm_error("DC: update_bandwidth failed!\n");
-			return false;
-		}
-
-		/* disable writeback */
-		if (dc->hwss.disable_writeback)
-			dc->hwss.disable_writeback(dc, dwb_pipe_inst);
-	}
 	return true;
 }
 
diff --git a/drivers/gpu/drm/amd/display/dc/dc_helper.c b/drivers/gpu/drm/amd/display/dc/dc_helper.c
index 3db7a2e11af5..3907eeff560c 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_helper.c
+++ b/drivers/gpu/drm/amd/display/dc/dc_helper.c
@@ -464,8 +464,7 @@ void generic_reg_wait(const struct dc_context *ctx,
 		field_value = get_reg_field_value_ex(reg_val, mask, shift);
 
 		if (field_value == condition_value) {
-			if (i * delay_between_poll_us > 1000 &&
-					!IS_FPGA_MAXIMUS_DC(ctx->dce_environment))
+			if (i * delay_between_poll_us > 1000)
 				DC_LOG_DC("REG_WAIT taking a while: %dms in %s line:%d\n",
 						delay_between_poll_us * i / 1000,
 						func_name, line);
@@ -477,8 +476,7 @@ void generic_reg_wait(const struct dc_context *ctx,
 			delay_between_poll_us, time_out_num_tries,
 			func_name, line);
 
-	if (!IS_FPGA_MAXIMUS_DC(ctx->dce_environment))
-		BREAK_TO_DEBUGGER();
+	BREAK_TO_DEBUGGER();
 }
 
 void generic_write_indirect_reg(const struct dc_context *ctx,
diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h
index 150c19286d67..6b4731b5e975 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_types.h
@@ -69,13 +69,6 @@ enum dce_environment {
 	DCE_ENV_VIRTUAL_HW
 };
 
-/* Note: use these macro definitions instead of direct comparison! */
-#define IS_FPGA_MAXIMUS_DC(dce_environment) \
-	(dce_environment == DCE_ENV_FPGA_MAXIMUS)
-
-#define IS_DIAG_DC(dce_environment) \
-	(IS_FPGA_MAXIMUS_DC(dce_environment) || (dce_environment == DCE_ENV_DIAG))
-
 struct dc_perf_trace {
 	unsigned long read_count;
 	unsigned long write_count;
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c b/drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c
index 462c7a3ec3cc..ed8936405dfa 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c
@@ -920,25 +920,6 @@ static bool dce112_program_pix_clk(
 	struct dce110_clk_src *clk_src = TO_DCE110_CLK_SRC(clock_source);
 	struct bp_pixel_clock_parameters bp_pc_params = {0};
 
-	if (IS_FPGA_MAXIMUS_DC(clock_source->ctx->dce_environment)) {
-		unsigned int inst = pix_clk_params->controller_id - CONTROLLER_ID_D0;
-		unsigned dp_dto_ref_100hz = 7000000;
-		unsigned clock_100hz = pll_settings->actual_pix_clk_100hz;
-
-		/* Set DTO values: phase = target clock, modulo = reference clock */
-		REG_WRITE(PHASE[inst], clock_100hz);
-		REG_WRITE(MODULO[inst], dp_dto_ref_100hz);
-
-		/* Enable DTO */
-		if (clk_src->cs_mask->PIPE0_DTO_SRC_SEL)
-			REG_UPDATE_2(PIXEL_RATE_CNTL[inst],
-					DP_DTO0_ENABLE, 1,
-					PIPE0_DTO_SRC_SEL, 1);
-		else
-			REG_UPDATE(PIXEL_RATE_CNTL[inst],
-					DP_DTO0_ENABLE, 1);
-		return true;
-	}
 	/* First disable SS
 	 * ATOMBIOS will enable by default SS on PLL for DP,
 	 * do not disable it here
@@ -1015,25 +996,6 @@ static bool dcn31_program_pix_clk(
 			REG_UPDATE(PIXEL_RATE_CNTL[inst],
 					DP_DTO0_ENABLE, 1);
 	} else {
-		if (IS_FPGA_MAXIMUS_DC(clock_source->ctx->dce_environment)) {
-			unsigned int inst = pix_clk_params->controller_id - CONTROLLER_ID_D0;
-			unsigned dp_dto_ref_100hz = 7000000;
-			unsigned clock_100hz = pll_settings->actual_pix_clk_100hz;
-
-			/* Set DTO values: phase = target clock, modulo = reference clock */
-			REG_WRITE(PHASE[inst], clock_100hz);
-			REG_WRITE(MODULO[inst], dp_dto_ref_100hz);
-
-			/* Enable DTO */
-			if (clk_src->cs_mask->PIPE0_DTO_SRC_SEL)
-				REG_UPDATE_2(PIXEL_RATE_CNTL[inst],
-						DP_DTO0_ENABLE, 1,
-						PIPE0_DTO_SRC_SEL, 1);
-			else
-				REG_UPDATE(PIXEL_RATE_CNTL[inst],
-						DP_DTO0_ENABLE, 1);
-			return true;
-		}
 
 		if (clk_src->cs_mask->PIPE0_DTO_SRC_SEL)
 			REG_UPDATE(PIXEL_RATE_CNTL[inst],
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c b/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c
index e74266cc0098..63009db8b5a7 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c
@@ -1093,11 +1093,9 @@ static void dcn21_dmcu_construct(
 
 	dce_dmcu_construct(dmcu_dce, ctx, regs, dmcu_shift, dmcu_mask);
 
-	if (!IS_FPGA_MAXIMUS_DC(ctx->dce_environment)) {
-		psp_version = dm_read_reg(ctx, mmMP0_SMN_C2PMSG_58);
-		dmcu_dce->base.auto_load_dmcu = ((psp_version & 0x00FF00FF) > 0x00110029);
-		dmcu_dce->base.psp_version = psp_version;
-	}
+	psp_version = dm_read_reg(ctx, mmMP0_SMN_C2PMSG_58);
+	dmcu_dce->base.auto_load_dmcu = ((psp_version & 0x00FF00FF) > 0x00110029);
+	dmcu_dce->base.psp_version = psp_version;
 }
 
 struct dmcu *dce_dmcu_create(
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
index 1a0be40d125c..c6fe2c00aedb 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -209,9 +209,6 @@ static bool dce110_enable_display_power_gating(
 	struct dc_context *ctx = dc->ctx;
 	unsigned int underlay_idx = dc->res_pool->underlay_pipe_index;
 
-	if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment))
-		return true;
-
 	if (power_gating == PIPE_GATING_CONTROL_INIT)
 		cntl = ASIC_PIPE_INIT;
 	else if (power_gating == PIPE_GATING_CONTROL_ENABLE)
diff --git a/drivers/gpu/drm/amd/display/dc/dce112/dce112_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce112/dce112_hw_sequencer.c
index 19873ee1f78d..690caaaff019 100644
--- a/drivers/gpu/drm/amd/display/dc/dce112/dce112_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce112/dce112_hw_sequencer.c
@@ -120,9 +120,6 @@ static bool dce112_enable_display_power_gating(
 	enum bp_pipe_control_action cntl;
 	struct dc_context *ctx = dc->ctx;
 
-	if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment))
-		return true;
-
 	if (power_gating == PIPE_GATING_CONTROL_INIT)
 		cntl = ASIC_PIPE_INIT;
 	else if (power_gating == PIPE_GATING_CONTROL_ENABLE)
diff --git a/drivers/gpu/drm/amd/display/dc/dce120/dce120_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce120/dce120_hw_sequencer.c
index d4afe6c824d2..45e08c4d5861 100644
--- a/drivers/gpu/drm/amd/display/dc/dce120/dce120_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce120/dce120_hw_sequencer.c
@@ -159,9 +159,6 @@ static bool dce120_enable_display_power_gating(
 	enum bp_pipe_control_action cntl;
 	struct dc_context *ctx = dc->ctx;
 
-	if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment))
-		return true;
-
 	if (power_gating == PIPE_GATING_CONTROL_INIT)
 		cntl = ASIC_PIPE_INIT;
 	else if (power_gating == PIPE_GATING_CONTROL_ENABLE)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index 905246a2ece4..13b4e5118459 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -1012,31 +1012,29 @@ static void dcn10_reset_back_end_for_pipe(
 		return;
 	}
 
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		link = pipe_ctx->stream->link;
-		/* DPMS may already disable or */
-		/* dpms_off status is incorrect due to fastboot
-		 * feature. When system resume from S4 with second
-		 * screen only, the dpms_off would be true but
-		 * VBIOS lit up eDP, so check link status too.
-		 */
-		if (!pipe_ctx->stream->dpms_off || link->link_status.link_active)
-			dc->link_srv->set_dpms_off(pipe_ctx);
-		else if (pipe_ctx->stream_res.audio)
-			dc->hwss.disable_audio_stream(pipe_ctx);
-
-		if (pipe_ctx->stream_res.audio) {
-			/*disable az_endpoint*/
-			pipe_ctx->stream_res.audio->funcs->az_disable(pipe_ctx->stream_res.audio);
-
-			/*free audio*/
-			if (dc->caps.dynamic_audio == true) {
-				/*we have to dynamic arbitrate the audio endpoints*/
-				/*we free the resource, need reset is_audio_acquired*/
-				update_audio_usage(&dc->current_state->res_ctx, dc->res_pool,
-						pipe_ctx->stream_res.audio, false);
-				pipe_ctx->stream_res.audio = NULL;
-			}
+	link = pipe_ctx->stream->link;
+	/* DPMS may already disable or */
+	/* dpms_off status is incorrect due to fastboot
+	 * feature. When system resume from S4 with second
+	 * screen only, the dpms_off would be true but
+	 * VBIOS lit up eDP, so check link status too.
+	 */
+	if (!pipe_ctx->stream->dpms_off || link->link_status.link_active)
+		dc->link_srv->set_dpms_off(pipe_ctx);
+	else if (pipe_ctx->stream_res.audio)
+		dc->hwss.disable_audio_stream(pipe_ctx);
+
+	if (pipe_ctx->stream_res.audio) {
+		/*disable az_endpoint*/
+		pipe_ctx->stream_res.audio->funcs->az_disable(pipe_ctx->stream_res.audio);
+
+		/*free audio*/
+		if (dc->caps.dynamic_audio == true) {
+			/*we have to dynamic arbitrate the audio endpoints*/
+			/*we free the resource, need reset is_audio_acquired*/
+			update_audio_usage(&dc->current_state->res_ctx, dc->res_pool,
+					pipe_ctx->stream_res.audio, false);
+			pipe_ctx->stream_res.audio = NULL;
 		}
 	}
 
@@ -1499,28 +1497,6 @@ void dcn10_init_hw(struct dc *dc)
 	if (dc->res_pool->dccg && dc->res_pool->dccg->funcs->dccg_init)
 		dc->res_pool->dccg->funcs->dccg_init(res_pool->dccg);
 
-	if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-
-		REG_WRITE(REFCLK_CNTL, 0);
-		REG_UPDATE(DCHUBBUB_GLOBAL_TIMER_CNTL, DCHUBBUB_GLOBAL_TIMER_ENABLE, 1);
-		REG_WRITE(DIO_MEM_PWR_CTRL, 0);
-
-		if (!dc->debug.disable_clock_gate) {
-			/* enable all DCN clock gating */
-			REG_WRITE(DCCG_GATE_DISABLE_CNTL, 0);
-
-			REG_WRITE(DCCG_GATE_DISABLE_CNTL2, 0);
-
-			REG_UPDATE(DCFCLK_CNTL, DCFCLK_GATE_DIS, 0);
-		}
-
-		//Enable ability to power gate / don't force power on permanently
-		if (hws->funcs.enable_power_gating_plane)
-			hws->funcs.enable_power_gating_plane(hws, true);
-
-		return;
-	}
-
 	if (!dcb->funcs->is_accelerated_mode(dcb))
 		hws->funcs.disable_vga(dc->hwseq);
 
@@ -1532,23 +1508,21 @@ void dcn10_init_hw(struct dc *dc)
 		res_pool->ref_clocks.xtalin_clock_inKhz =
 				dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency;
 
-		if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-			if (res_pool->dccg && res_pool->hubbub) {
+		if (res_pool->dccg && res_pool->hubbub) {
 
-				(res_pool->dccg->funcs->get_dccg_ref_freq)(res_pool->dccg,
-						dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency,
-						&res_pool->ref_clocks.dccg_ref_clock_inKhz);
+			(res_pool->dccg->funcs->get_dccg_ref_freq)(res_pool->dccg,
+					dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency,
+					&res_pool->ref_clocks.dccg_ref_clock_inKhz);
 
-				(res_pool->hubbub->funcs->get_dchub_ref_freq)(res_pool->hubbub,
-						res_pool->ref_clocks.dccg_ref_clock_inKhz,
-						&res_pool->ref_clocks.dchub_ref_clock_inKhz);
-			} else {
-				// Not all ASICs have DCCG sw component
-				res_pool->ref_clocks.dccg_ref_clock_inKhz =
-						res_pool->ref_clocks.xtalin_clock_inKhz;
-				res_pool->ref_clocks.dchub_ref_clock_inKhz =
-						res_pool->ref_clocks.xtalin_clock_inKhz;
-			}
+			(res_pool->hubbub->funcs->get_dchub_ref_freq)(res_pool->hubbub,
+					res_pool->ref_clocks.dccg_ref_clock_inKhz,
+					&res_pool->ref_clocks.dchub_ref_clock_inKhz);
+		} else {
+			// Not all ASICs have DCCG sw component
+			res_pool->ref_clocks.dccg_ref_clock_inKhz =
+					res_pool->ref_clocks.xtalin_clock_inKhz;
+			res_pool->ref_clocks.dchub_ref_clock_inKhz =
+					res_pool->ref_clocks.xtalin_clock_inKhz;
 		}
 	} else
 		ASSERT_CRITICAL(false);
@@ -3070,15 +3044,13 @@ void dcn10_prepare_bandwidth(
 	if (dc->debug.sanity_checks)
 		hws->funcs.verify_allow_pstate_change_high(dc);
 
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		if (context->stream_count == 0)
-			context->bw_ctx.bw.dcn.clk.phyclk_khz = 0;
+	if (context->stream_count == 0)
+		context->bw_ctx.bw.dcn.clk.phyclk_khz = 0;
 
-		dc->clk_mgr->funcs->update_clocks(
-				dc->clk_mgr,
-				context,
-				false);
-	}
+	dc->clk_mgr->funcs->update_clocks(
+			dc->clk_mgr,
+			context,
+			false);
 
 	dc->wm_optimized_required = hubbub->funcs->program_watermarks(hubbub,
 			&context->bw_ctx.bw.dcn.watermarks,
@@ -3110,15 +3082,13 @@ void dcn10_optimize_bandwidth(
 	if (dc->debug.sanity_checks)
 		hws->funcs.verify_allow_pstate_change_high(dc);
 
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		if (context->stream_count == 0)
-			context->bw_ctx.bw.dcn.clk.phyclk_khz = 0;
+	if (context->stream_count == 0)
+		context->bw_ctx.bw.dcn.clk.phyclk_khz = 0;
 
-		dc->clk_mgr->funcs->update_clocks(
-				dc->clk_mgr,
-				context,
-				true);
-	}
+	dc->clk_mgr->funcs->update_clocks(
+			dc->clk_mgr,
+			context,
+			true);
 
 	hubbub->funcs->program_watermarks(hubbub,
 			&context->bw_ctx.bw.dcn.watermarks,
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
index c9e53dc49c92..e1975991e075 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
@@ -653,11 +653,9 @@ void optc1_lock(struct timing_generator *optc)
 	REG_SET(OTG_MASTER_UPDATE_LOCK, 0,
 			OTG_MASTER_UPDATE_LOCK, 1);
 
-	/* Should be fast, status does not update on maximus */
-	if (optc->ctx->dce_environment != DCE_ENV_FPGA_MAXIMUS)
-		REG_WAIT(OTG_MASTER_UPDATE_LOCK,
-				UPDATE_LOCK_STATUS, 1,
-				1, 10);
+	REG_WAIT(OTG_MASTER_UPDATE_LOCK,
+			UPDATE_LOCK_STATUS, 1,
+			1, 10);
 
 	TRACE_OPTC_LOCK_UNLOCK_STATE(optc1, optc->inst, true);
 }
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
index 21ec1ba5ed75..a0625209c86d 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
@@ -1651,9 +1651,8 @@ static bool dcn10_resource_construct(
 	}
 
 	if (!resource_construct(num_virtual_links, dc, &pool->base,
-			(!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) ?
-			&res_create_funcs : &res_create_maximus_funcs)))
-			goto fail;
+			&res_create_funcs))
+		goto fail;
 
 	dcn10_hw_sequencer_construct(dc);
 	dc->caps.max_planes =  pool->base.pipe_count;
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
index e74c3ce561ab..b0a13eb8318c 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
@@ -2480,36 +2480,31 @@ static void dcn20_reset_back_end_for_pipe(
 		return;
 	}
 
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		/* DPMS may already disable or */
-		/* dpms_off status is incorrect due to fastboot
-		 * feature. When system resume from S4 with second
-		 * screen only, the dpms_off would be true but
-		 * VBIOS lit up eDP, so check link status too.
-		 */
-		if (!pipe_ctx->stream->dpms_off || link->link_status.link_active)
-			dc->link_srv->set_dpms_off(pipe_ctx);
-		else if (pipe_ctx->stream_res.audio)
-			dc->hwss.disable_audio_stream(pipe_ctx);
-
-		/* free acquired resources */
-		if (pipe_ctx->stream_res.audio) {
-			/*disable az_endpoint*/
-			pipe_ctx->stream_res.audio->funcs->az_disable(pipe_ctx->stream_res.audio);
-
-			/*free audio*/
-			if (dc->caps.dynamic_audio == true) {
-				/*we have to dynamic arbitrate the audio endpoints*/
-				/*we free the resource, need reset is_audio_acquired*/
-				update_audio_usage(&dc->current_state->res_ctx, dc->res_pool,
-						pipe_ctx->stream_res.audio, false);
-				pipe_ctx->stream_res.audio = NULL;
-			}
+	/* DPMS may already disable or */
+	/* dpms_off status is incorrect due to fastboot
+	 * feature. When system resume from S4 with second
+	 * screen only, the dpms_off would be true but
+	 * VBIOS lit up eDP, so check link status too.
+	 */
+	if (!pipe_ctx->stream->dpms_off || link->link_status.link_active)
+		dc->link_srv->set_dpms_off(pipe_ctx);
+	else if (pipe_ctx->stream_res.audio)
+		dc->hwss.disable_audio_stream(pipe_ctx);
+
+	/* free acquired resources */
+	if (pipe_ctx->stream_res.audio) {
+		/*disable az_endpoint*/
+		pipe_ctx->stream_res.audio->funcs->az_disable(pipe_ctx->stream_res.audio);
+
+		/*free audio*/
+		if (dc->caps.dynamic_audio == true) {
+			/*we have to dynamic arbitrate the audio endpoints*/
+			/*we free the resource, need reset is_audio_acquired*/
+			update_audio_usage(&dc->current_state->res_ctx, dc->res_pool,
+					pipe_ctx->stream_res.audio, false);
+			pipe_ctx->stream_res.audio = NULL;
 		}
 	}
-	else if (pipe_ctx->stream_res.dsc) {
-		dc->link_srv->set_dsc_enable(pipe_ctx, false);
-	}
 
 	/* by upper caller loop, parent pipe: pipe0, will be reset last.
 	 * back end share by all pipes and will be disable only when disable
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c
index 4192c522e59a..e4b44e691ce6 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c
@@ -145,8 +145,4 @@ void dcn20_hw_sequencer_construct(struct dc *dc)
 	dc->hwss = dcn20_funcs;
 	dc->hwseq->funcs = dcn20_private_funcs;
 
-	if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		dc->hwss.init_hw = dcn20_fpga_init_hw;
-		dc->hwseq->funcs.init_pipes = NULL;
-	}
 }
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.c
index a08c335b7383..e0edc163d767 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.c
@@ -391,10 +391,9 @@ void optc2_triplebuffer_lock(struct timing_generator *optc)
 	REG_SET(OTG_MASTER_UPDATE_LOCK, 0,
 		OTG_MASTER_UPDATE_LOCK, 1);
 
-	if (optc->ctx->dce_environment != DCE_ENV_FPGA_MAXIMUS)
-		REG_WAIT(OTG_MASTER_UPDATE_LOCK,
-				UPDATE_LOCK_STATUS, 1,
-				1, 10);
+	REG_WAIT(OTG_MASTER_UPDATE_LOCK,
+			UPDATE_LOCK_STATUS, 1,
+			1, 10);
 }
 
 void optc2_triplebuffer_unlock(struct timing_generator *optc)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index 1d8c5805ef20..7dcae3183e07 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -2488,15 +2488,9 @@ static bool dcn20_resource_construct(
 
 	dc->caps.dp_hdmi21_pcon_support = true;
 
-	if (dc->ctx->dce_environment == DCE_ENV_PRODUCTION_DRV) {
+	if (dc->ctx->dce_environment == DCE_ENV_PRODUCTION_DRV)
 		dc->debug = debug_defaults_drv;
-	} else if (dc->ctx->dce_environment == DCE_ENV_FPGA_MAXIMUS) {
-		pool->base.pipe_count = 4;
-		pool->base.mpcc_count = pool->base.pipe_count;
-		dc->debug = debug_defaults_diags;
-	} else {
-		dc->debug = debug_defaults_diags;
-	}
+
 	//dcn2.0x
 	dc->work_arounds.dedcn20_305_wa = true;
 
@@ -2734,9 +2728,8 @@ static bool dcn20_resource_construct(
 	}
 
 	if (!resource_construct(num_virtual_links, dc, &pool->base,
-			(!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) ?
-			&res_create_funcs : &res_create_maximus_funcs)))
-			goto create_fail;
+			&res_create_funcs))
+		goto create_fail;
 
 	dcn20_hw_sequencer_construct(dc);
 
diff --git a/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_hwseq.c
index 75472d53ff52..9e027db6d752 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_hwseq.c
@@ -231,52 +231,39 @@ void dcn201_init_hw(struct dc *dc)
 	if (dc->clk_mgr && dc->clk_mgr->funcs->init_clocks)
 		dc->clk_mgr->funcs->init_clocks(dc->clk_mgr);
 
-	if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		REG_WRITE(RBBMIF_TIMEOUT_DIS, 0xFFFFFFFF);
-		REG_WRITE(RBBMIF_TIMEOUT_DIS_2, 0xFFFFFFFF);
-
-		hws->funcs.dccg_init(hws);
-
-		REG_UPDATE(DCHUBBUB_GLOBAL_TIMER_CNTL, DCHUBBUB_GLOBAL_TIMER_REFDIV, 2);
-		REG_UPDATE(DCHUBBUB_GLOBAL_TIMER_CNTL, DCHUBBUB_GLOBAL_TIMER_ENABLE, 1);
-		REG_WRITE(REFCLK_CNTL, 0);
-	} else {
-		hws->funcs.bios_golden_init(dc);
-
-		if (dc->ctx->dc_bios->fw_info_valid) {
-			res_pool->ref_clocks.xtalin_clock_inKhz =
-				dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency;
-
-			if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-				if (res_pool->dccg && res_pool->hubbub) {
-					(res_pool->dccg->funcs->get_dccg_ref_freq)(res_pool->dccg,
-							dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency,
-							&res_pool->ref_clocks.dccg_ref_clock_inKhz);
-
-					(res_pool->hubbub->funcs->get_dchub_ref_freq)(res_pool->hubbub,
-							res_pool->ref_clocks.dccg_ref_clock_inKhz,
-							&res_pool->ref_clocks.dchub_ref_clock_inKhz);
-				} else {
-					res_pool->ref_clocks.dccg_ref_clock_inKhz =
-							res_pool->ref_clocks.xtalin_clock_inKhz;
-					res_pool->ref_clocks.dchub_ref_clock_inKhz =
-							res_pool->ref_clocks.xtalin_clock_inKhz;
-				}
-			}
-		} else
-			ASSERT_CRITICAL(false);
-		for (i = 0; i < dc->link_count; i++) {
-			/* Power up AND update implementation according to the
-			 * required signal (which may be different from the
-			 * default signal on connector).
-			 */
-			struct dc_link *link = dc->links[i];
-
-			link->link_enc->funcs->hw_init(link->link_enc);
+	hws->funcs.bios_golden_init(dc);
+
+	if (dc->ctx->dc_bios->fw_info_valid) {
+		res_pool->ref_clocks.xtalin_clock_inKhz =
+			dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency;
+
+		if (res_pool->dccg && res_pool->hubbub) {
+			(res_pool->dccg->funcs->get_dccg_ref_freq)(res_pool->dccg,
+					dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency,
+					&res_pool->ref_clocks.dccg_ref_clock_inKhz);
+
+			(res_pool->hubbub->funcs->get_dchub_ref_freq)(res_pool->hubbub,
+					res_pool->ref_clocks.dccg_ref_clock_inKhz,
+					&res_pool->ref_clocks.dchub_ref_clock_inKhz);
+		} else {
+			res_pool->ref_clocks.dccg_ref_clock_inKhz =
+					res_pool->ref_clocks.xtalin_clock_inKhz;
+			res_pool->ref_clocks.dchub_ref_clock_inKhz =
+					res_pool->ref_clocks.xtalin_clock_inKhz;
 		}
-		if (hws->fb_offset.quad_part == 0)
-			read_mmhub_vm_setup(hws);
+	} else
+		ASSERT_CRITICAL(false);
+	for (i = 0; i < dc->link_count; i++) {
+		/* Power up AND update implementation according to the
+		 * required signal (which may be different from the
+		 * default signal on connector).
+		 */
+		struct dc_link *link = dc->links[i];
+
+		link->link_enc->funcs->hw_init(link->link_enc);
 	}
+	if (hws->fb_offset.quad_part == 0)
+		read_mmhub_vm_setup(hws);
 
 	/* Blank pixel data with OPP DPG */
 	for (i = 0; i < res_pool->timing_generator_count; i++) {
@@ -362,10 +349,6 @@ void dcn201_init_hw(struct dc *dc)
 		tg->funcs->tg_init(tg);
 	}
 
-	/* end of FPGA. Below if real ASIC */
-	if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment))
-		return;
-
 	for (i = 0; i < res_pool->audio_count; i++) {
 		struct audio *audio = res_pool->audios[i];
 
diff --git a/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_optc.c b/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_optc.c
index 730875dfd8b4..70fcbec03fb6 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_optc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_optc.c
@@ -55,10 +55,9 @@ static void optc201_triplebuffer_lock(struct timing_generator *optc)
 	REG_SET(OTG_MASTER_UPDATE_LOCK, 0,
 		OTG_MASTER_UPDATE_LOCK, 1);
 
-	if (optc->ctx->dce_environment != DCE_ENV_FPGA_MAXIMUS)
-		REG_WAIT(OTG_MASTER_UPDATE_LOCK,
-				UPDATE_LOCK_STATUS, 1,
-				1, 10);
+	REG_WAIT(OTG_MASTER_UPDATE_LOCK,
+			UPDATE_LOCK_STATUS, 1,
+			1, 10);
 }
 
 static void optc201_triplebuffer_unlock(struct timing_generator *optc)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c b/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c
index 6ea70da28aaa..212c475d95cb 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c
@@ -1272,9 +1272,8 @@ static bool dcn201_resource_construct(
 	}
 
 	if (!resource_construct(num_virtual_links, dc, &pool->base,
-			(!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) ?
-			&res_create_funcs : &res_create_maximus_funcs)))
-			goto create_fail;
+			&res_create_funcs))
+		goto create_fail;
 
 	dcn201_hw_sequencer_construct(dc);
 
diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_init.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_init.c
index 8b58ce1db035..f024157bd6eb 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_init.c
@@ -151,8 +151,4 @@ void dcn21_hw_sequencer_construct(struct dc *dc)
 	dc->hwss = dcn21_funcs;
 	dc->hwseq->funcs = dcn21_private_funcs;
 
-	if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		dc->hwss.init_hw = dcn20_fpga_init_hw;
-		dc->hwseq->funcs.init_pipes = NULL;
-	}
 }
diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
index 19aaa557b2db..76268a7b7934 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
@@ -1503,11 +1503,6 @@ static bool dcn21_resource_construct(
 
 	if (dc->ctx->dce_environment == DCE_ENV_PRODUCTION_DRV)
 		dc->debug = debug_defaults_drv;
-	else if (dc->ctx->dce_environment == DCE_ENV_FPGA_MAXIMUS) {
-		pool->base.pipe_count = 4;
-		dc->debug = debug_defaults_diags;
-	} else
-		dc->debug = debug_defaults_diags;
 
 	// Init the vm_helper
 	if (dc->vm_helper)
@@ -1721,9 +1716,8 @@ static bool dcn21_resource_construct(
 	}
 
 	if (!resource_construct(num_virtual_links, dc, &pool->base,
-			(!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) ?
-			&res_create_funcs : &res_create_maximus_funcs)))
-			goto create_fail;
+			&res_create_funcs))
+		goto create_fail;
 
 	dcn21_hw_sequencer_construct(dc);
 
diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c
index 3303c9aae068..ad4e1023b00e 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c
@@ -330,10 +330,6 @@ void dcn30_enable_writeback(
 	DC_LOG_DWB("%s dwb_pipe_inst = %d, mpcc_inst = %d",\
 		__func__, wb_info->dwb_pipe_inst,\
 		wb_info->mpcc_inst);
-	if (IS_DIAG_DC(dc->ctx->dce_environment)) {
-		/*till diags switch to warmup interface*/
-		dcn30_mmhubbub_warmup(dc, 1, wb_info);
-	}
 	/* Update writeback pipe */
 	dcn30_set_writeback(dc, wb_info, context);
 
@@ -447,28 +443,6 @@ void dcn30_init_hw(struct dc *dc)
 	if (res_pool->dccg->funcs->dccg_init)
 		res_pool->dccg->funcs->dccg_init(res_pool->dccg);
 
-	if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-
-		REG_WRITE(REFCLK_CNTL, 0);
-		REG_UPDATE(DCHUBBUB_GLOBAL_TIMER_CNTL, DCHUBBUB_GLOBAL_TIMER_ENABLE, 1);
-		REG_WRITE(DIO_MEM_PWR_CTRL, 0);
-
-		if (!dc->debug.disable_clock_gate) {
-			/* enable all DCN clock gating */
-			REG_WRITE(DCCG_GATE_DISABLE_CNTL, 0);
-
-			REG_WRITE(DCCG_GATE_DISABLE_CNTL2, 0);
-
-			REG_UPDATE(DCFCLK_CNTL, DCFCLK_GATE_DIS, 0);
-		}
-
-		//Enable ability to power gate / don't force power on permanently
-		if (hws->funcs.enable_power_gating_plane)
-			hws->funcs.enable_power_gating_plane(hws, true);
-
-		return;
-	}
-
 	if (!dcb->funcs->is_accelerated_mode(dcb)) {
 		hws->funcs.bios_golden_init(dc);
 		hws->funcs.disable_vga(dc->hwseq);
@@ -491,23 +465,21 @@ void dcn30_init_hw(struct dc *dc)
 		res_pool->ref_clocks.xtalin_clock_inKhz =
 				dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency;
 
-		if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-			if (res_pool->dccg && res_pool->hubbub) {
+		if (res_pool->dccg && res_pool->hubbub) {
 
-				(res_pool->dccg->funcs->get_dccg_ref_freq)(res_pool->dccg,
-						dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency,
-						&res_pool->ref_clocks.dccg_ref_clock_inKhz);
+			(res_pool->dccg->funcs->get_dccg_ref_freq)(res_pool->dccg,
+					dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency,
+					&res_pool->ref_clocks.dccg_ref_clock_inKhz);
 
-				(res_pool->hubbub->funcs->get_dchub_ref_freq)(res_pool->hubbub,
-						res_pool->ref_clocks.dccg_ref_clock_inKhz,
-						&res_pool->ref_clocks.dchub_ref_clock_inKhz);
-			} else {
-				// Not all ASICs have DCCG sw component
-				res_pool->ref_clocks.dccg_ref_clock_inKhz =
-						res_pool->ref_clocks.xtalin_clock_inKhz;
-				res_pool->ref_clocks.dchub_ref_clock_inKhz =
-						res_pool->ref_clocks.xtalin_clock_inKhz;
-			}
+			(res_pool->hubbub->funcs->get_dchub_ref_freq)(res_pool->hubbub,
+					res_pool->ref_clocks.dccg_ref_clock_inKhz,
+					&res_pool->ref_clocks.dchub_ref_clock_inKhz);
+		} else {
+			// Not all ASICs have DCCG sw component
+			res_pool->ref_clocks.dccg_ref_clock_inKhz =
+					res_pool->ref_clocks.xtalin_clock_inKhz;
+			res_pool->ref_clocks.dchub_ref_clock_inKhz =
+					res_pool->ref_clocks.xtalin_clock_inKhz;
 		}
 	} else
 		ASSERT_CRITICAL(false);
diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_init.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_init.c
index 18e94d8ae54f..3d19acaa12f3 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_init.c
@@ -151,8 +151,4 @@ void dcn30_hw_sequencer_construct(struct dc *dc)
 	dc->hwss = dcn30_funcs;
 	dc->hwseq->funcs = dcn30_private_funcs;
 
-	if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		dc->hwss.init_hw = dcn20_fpga_init_hw;
-		dc->hwseq->funcs.init_pipes = NULL;
-	}
 }
diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.c
index 34b08d90dc1d..c6f5f3df8061 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.c
@@ -55,10 +55,9 @@ void optc3_triplebuffer_lock(struct timing_generator *optc)
 	REG_SET(OTG_MASTER_UPDATE_LOCK, 0,
 		OTG_MASTER_UPDATE_LOCK, 1);
 
-	if (optc->ctx->dce_environment != DCE_ENV_FPGA_MAXIMUS)
-		REG_WAIT(OTG_MASTER_UPDATE_LOCK,
-				UPDATE_LOCK_STATUS, 1,
-				1, 10);
+	REG_WAIT(OTG_MASTER_UPDATE_LOCK,
+			UPDATE_LOCK_STATUS, 1,
+			1, 10);
 
 	TRACE_OPTC_LOCK_UNLOCK_STATE(optc1, optc->inst, true);
 }
diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c
index 67a34cda3774..cd94b5f5fdb4 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c
@@ -2376,10 +2376,7 @@ static bool dcn30_resource_construct(
 
 	if (dc->ctx->dce_environment == DCE_ENV_PRODUCTION_DRV)
 		dc->debug = debug_defaults_drv;
-	else if (dc->ctx->dce_environment == DCE_ENV_FPGA_MAXIMUS) {
-		dc->debug = debug_defaults_diags;
-	} else
-		dc->debug = debug_defaults_diags;
+
 	// Init the vm_helper
 	if (dc->vm_helper)
 		vm_helper_init(dc->vm_helper, 16);
@@ -2577,8 +2574,7 @@ static bool dcn30_resource_construct(
 
 	/* Audio, Stream Encoders including DIG and virtual, MPC 3D LUTs */
 	if (!resource_construct(num_virtual_links, dc, &pool->base,
-			(!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) ?
-			&res_create_funcs : &res_create_maximus_funcs)))
+			&res_create_funcs))
 		goto create_fail;
 
 	/* HW Sequencer and Plane caps */
diff --git a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c
index 5ac2a272c380..1cf84a086fec 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c
@@ -1513,10 +1513,7 @@ static bool dcn301_resource_construct(
 
 	if (dc->ctx->dce_environment == DCE_ENV_PRODUCTION_DRV)
 		dc->debug = debug_defaults_drv;
-	else if (dc->ctx->dce_environment == DCE_ENV_FPGA_MAXIMUS) {
-		dc->debug = debug_defaults_diags;
-	} else
-		dc->debug = debug_defaults_diags;
+
 	// Init the vm_helper
 	if (dc->vm_helper)
 		vm_helper_init(dc->vm_helper, 16);
@@ -1710,9 +1707,8 @@ static bool dcn301_resource_construct(
 
 	/* Audio, Stream Encoders including HPO and virtual, MPC 3D LUTs */
 	if (!resource_construct(num_virtual_links, dc, &pool->base,
-			(!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) ?
-			&res_create_funcs : &res_create_maximus_funcs)))
-			goto create_fail;
+			&res_create_funcs))
+		goto create_fail;
 
 	/* HW Sequencer and Plane caps */
 	dcn301_hw_sequencer_construct(dc);
diff --git a/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c b/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c
index 9f93c43115ba..efd98d64588d 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c
@@ -1309,8 +1309,6 @@ static bool dcn302_resource_construct(
 
 	if (dc->ctx->dce_environment == DCE_ENV_PRODUCTION_DRV)
 		dc->debug = debug_defaults_drv;
-	else
-		dc->debug = debug_defaults_diags;
 
 	// Init the vm_helper
 	if (dc->vm_helper)
@@ -1489,8 +1487,7 @@ static bool dcn302_resource_construct(
 
 	/* Audio, Stream Encoders including HPO and virtual, MPC 3D LUTs */
 	if (!resource_construct(num_virtual_links, dc, pool,
-			(!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) ?
-					&res_create_funcs : &res_create_maximus_funcs)))
+			&res_create_funcs))
 		goto create_fail;
 
 	/* HW Sequencer and Plane caps */
diff --git a/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c b/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c
index 7f72ef882ca4..fcd126602178 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c
@@ -1232,8 +1232,6 @@ static bool dcn303_resource_construct(
 
 	if (dc->ctx->dce_environment == DCE_ENV_PRODUCTION_DRV)
 		dc->debug = debug_defaults_drv;
-	else
-		dc->debug = debug_defaults_diags;
 
 	// Init the vm_helper
 	if (dc->vm_helper)
@@ -1400,8 +1398,7 @@ static bool dcn303_resource_construct(
 
 	/* Audio, Stream Encoders including HPO and virtual, MPC 3D LUTs */
 	if (!resource_construct(num_virtual_links, dc, pool,
-			(!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) ?
-					&res_create_funcs : &res_create_maximus_funcs)))
+			&res_create_funcs))
 		goto create_fail;
 
 	/* HW Sequencer and Plane caps */
diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.c
index 55494730e500..2a7f47642a44 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.c
@@ -117,28 +117,6 @@ void dcn31_init_hw(struct dc *dc)
 	if (dc->clk_mgr && dc->clk_mgr->funcs->init_clocks)
 		dc->clk_mgr->funcs->init_clocks(dc->clk_mgr);
 
-	if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-
-		REG_WRITE(REFCLK_CNTL, 0);
-		REG_UPDATE(DCHUBBUB_GLOBAL_TIMER_CNTL, DCHUBBUB_GLOBAL_TIMER_ENABLE, 1);
-		REG_WRITE(DIO_MEM_PWR_CTRL, 0);
-
-		if (!dc->debug.disable_clock_gate) {
-			/* enable all DCN clock gating */
-			REG_WRITE(DCCG_GATE_DISABLE_CNTL, 0);
-
-			REG_WRITE(DCCG_GATE_DISABLE_CNTL2, 0);
-
-			REG_UPDATE(DCFCLK_CNTL, DCFCLK_GATE_DIS, 0);
-		}
-
-		//Enable ability to power gate / don't force power on permanently
-		if (hws->funcs.enable_power_gating_plane)
-			hws->funcs.enable_power_gating_plane(hws, true);
-
-		return;
-	}
-
 	if (!dcb->funcs->is_accelerated_mode(dcb)) {
 		hws->funcs.bios_golden_init(dc);
 		if (hws->funcs.disable_vga)
@@ -154,23 +132,21 @@ void dcn31_init_hw(struct dc *dc)
 		res_pool->ref_clocks.xtalin_clock_inKhz =
 				dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency;
 
-		if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-			if (res_pool->dccg && res_pool->hubbub) {
-
-				(res_pool->dccg->funcs->get_dccg_ref_freq)(res_pool->dccg,
-						dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency,
-						&res_pool->ref_clocks.dccg_ref_clock_inKhz);
-
-				(res_pool->hubbub->funcs->get_dchub_ref_freq)(res_pool->hubbub,
-						res_pool->ref_clocks.dccg_ref_clock_inKhz,
-						&res_pool->ref_clocks.dchub_ref_clock_inKhz);
-			} else {
-				// Not all ASICs have DCCG sw component
-				res_pool->ref_clocks.dccg_ref_clock_inKhz =
-						res_pool->ref_clocks.xtalin_clock_inKhz;
-				res_pool->ref_clocks.dchub_ref_clock_inKhz =
-						res_pool->ref_clocks.xtalin_clock_inKhz;
-			}
+		if (res_pool->dccg && res_pool->hubbub) {
+
+			(res_pool->dccg->funcs->get_dccg_ref_freq)(res_pool->dccg,
+					dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency,
+					&res_pool->ref_clocks.dccg_ref_clock_inKhz);
+
+			(res_pool->hubbub->funcs->get_dchub_ref_freq)(res_pool->hubbub,
+					res_pool->ref_clocks.dccg_ref_clock_inKhz,
+					&res_pool->ref_clocks.dchub_ref_clock_inKhz);
+		} else {
+			// Not all ASICs have DCCG sw component
+			res_pool->ref_clocks.dccg_ref_clock_inKhz =
+					res_pool->ref_clocks.xtalin_clock_inKhz;
+			res_pool->ref_clocks.dchub_ref_clock_inKhz =
+					res_pool->ref_clocks.xtalin_clock_inKhz;
 		}
 	} else
 		ASSERT_CRITICAL(false);
@@ -553,35 +529,31 @@ static void dcn31_reset_back_end_for_pipe(
 		pipe_ctx->stream_res.tg->funcs->set_drr(
 				pipe_ctx->stream_res.tg, NULL);
 
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		link = pipe_ctx->stream->link;
-		/* DPMS may already disable or */
-		/* dpms_off status is incorrect due to fastboot
-		 * feature. When system resume from S4 with second
-		 * screen only, the dpms_off would be true but
-		 * VBIOS lit up eDP, so check link status too.
-		 */
-		if (!pipe_ctx->stream->dpms_off || link->link_status.link_active)
-			dc->link_srv->set_dpms_off(pipe_ctx);
-		else if (pipe_ctx->stream_res.audio)
-			dc->hwss.disable_audio_stream(pipe_ctx);
-
-		/* free acquired resources */
-		if (pipe_ctx->stream_res.audio) {
-			/*disable az_endpoint*/
-			pipe_ctx->stream_res.audio->funcs->az_disable(pipe_ctx->stream_res.audio);
-
-			/*free audio*/
-			if (dc->caps.dynamic_audio == true) {
-				/*we have to dynamic arbitrate the audio endpoints*/
-				/*we free the resource, need reset is_audio_acquired*/
-				update_audio_usage(&dc->current_state->res_ctx, dc->res_pool,
-						pipe_ctx->stream_res.audio, false);
-				pipe_ctx->stream_res.audio = NULL;
-			}
+	link = pipe_ctx->stream->link;
+	/* DPMS may already disable or */
+	/* dpms_off status is incorrect due to fastboot
+	 * feature. When system resume from S4 with second
+	 * screen only, the dpms_off would be true but
+	 * VBIOS lit up eDP, so check link status too.
+	 */
+	if (!pipe_ctx->stream->dpms_off || link->link_status.link_active)
+		dc->link_srv->set_dpms_off(pipe_ctx);
+	else if (pipe_ctx->stream_res.audio)
+		dc->hwss.disable_audio_stream(pipe_ctx);
+
+	/* free acquired resources */
+	if (pipe_ctx->stream_res.audio) {
+		/*disable az_endpoint*/
+		pipe_ctx->stream_res.audio->funcs->az_disable(pipe_ctx->stream_res.audio);
+
+		/*free audio*/
+		if (dc->caps.dynamic_audio == true) {
+			/*we have to dynamic arbitrate the audio endpoints*/
+			/*we free the resource, need reset is_audio_acquired*/
+			update_audio_usage(&dc->current_state->res_ctx, dc->res_pool,
+					pipe_ctx->stream_res.audio, false);
+			pipe_ctx->stream_res.audio = NULL;
 		}
-	} else if (pipe_ctx->stream_res.dsc) {
-		dc->link_srv->set_dsc_enable(pipe_ctx, false);
 	}
 
 	pipe_ctx->stream = NULL;
diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c
index ba9e7dee6e5e..fc25cc300a17 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c
@@ -154,8 +154,4 @@ void dcn31_hw_sequencer_construct(struct dc *dc)
 	dc->hwss = dcn31_funcs;
 	dc->hwseq->funcs = dcn31_private_funcs;
 
-	if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		dc->hwss.init_hw = dcn20_fpga_init_hw;
-		dc->hwseq->funcs.init_pipes = NULL;
-	}
 }
diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
index ff8cd5076434..9c637c895f91 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
@@ -1341,13 +1341,6 @@ static struct dce_hwseq *dcn31_hwseq_create(
 		hws->regs = &hwseq_reg;
 		hws->shifts = &hwseq_shift;
 		hws->masks = &hwseq_mask;
-		/* DCN3.1 FPGA Workaround
-		 * Need to enable HPO DP Stream Encoder before setting OTG master enable.
-		 * To do so, move calling function enable_stream_timing to only be done AFTER calling
-		 * function core_link_enable_stream
-		 */
-		if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment))
-			hws->wa.dp_hpo_and_otg_sequence = true;
 	}
 	return hws;
 }
@@ -1988,10 +1981,7 @@ static bool dcn31_resource_construct(
 
 	if (dc->ctx->dce_environment == DCE_ENV_PRODUCTION_DRV)
 		dc->debug = debug_defaults_drv;
-	else if (dc->ctx->dce_environment == DCE_ENV_FPGA_MAXIMUS) {
-		dc->debug = debug_defaults_diags;
-	} else
-		dc->debug = debug_defaults_diags;
+
 	// Init the vm_helper
 	if (dc->vm_helper)
 		vm_helper_init(dc->vm_helper, 16);
@@ -2195,9 +2185,8 @@ static bool dcn31_resource_construct(
 
 	/* Audio, Stream Encoders including HPO and virtual, MPC 3D LUTs */
 	if (!resource_construct(num_virtual_links, dc, &pool->base,
-			(!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) ?
-			&res_create_funcs : &res_create_maximus_funcs)))
-			goto create_fail;
+			&res_create_funcs))
+		goto create_fail;
 
 	/* HW Sequencer and Plane caps */
 	dcn31_hw_sequencer_construct(dc);
diff --git a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_init.c b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_init.c
index 90be62c05822..86d6a514dec0 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_init.c
@@ -160,8 +160,4 @@ void dcn314_hw_sequencer_construct(struct dc *dc)
 	dc->hwss = dcn314_funcs;
 	dc->hwseq->funcs = dcn314_private_funcs;
 
-	if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		dc->hwss.init_hw = dcn20_fpga_init_hw;
-		dc->hwseq->funcs.init_pipes = NULL;
-	}
 }
diff --git a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
index abeeede38fb3..2483d37e425d 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
@@ -1375,13 +1375,6 @@ static struct dce_hwseq *dcn314_hwseq_create(
 		hws->regs = &hwseq_reg;
 		hws->shifts = &hwseq_shift;
 		hws->masks = &hwseq_mask;
-		/* DCN3.1 FPGA Workaround
-		 * Need to enable HPO DP Stream Encoder before setting OTG master enable.
-		 * To do so, move calling function enable_stream_timing to only be done AFTER calling
-		 * function core_link_enable_stream
-		 */
-		if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment))
-			hws->wa.dp_hpo_and_otg_sequence = true;
 	}
 	return hws;
 }
@@ -2101,8 +2094,7 @@ static bool dcn314_resource_construct(
 
 	/* Audio, Stream Encoders including HPO and virtual, MPC 3D LUTs */
 	if (!resource_construct(num_virtual_links, dc, &pool->base,
-				(!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) ?
-				 &res_create_funcs : &res_create_maximus_funcs)))
+			&res_create_funcs))
 		goto create_fail;
 
 	/* HW Sequencer and Plane caps */
diff --git a/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c b/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c
index 95fd3d087ea3..e6d87c162d26 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c
@@ -1342,13 +1342,6 @@ static struct dce_hwseq *dcn31_hwseq_create(
 		hws->regs = &hwseq_reg;
 		hws->shifts = &hwseq_shift;
 		hws->masks = &hwseq_mask;
-		/* DCN3.1 FPGA Workaround
-		 * Need to enable HPO DP Stream Encoder before setting OTG master enable.
-		 * To do so, move calling function enable_stream_timing to only be done AFTER calling
-		 * function core_link_enable_stream
-		 */
-		if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment))
-			hws->wa.dp_hpo_and_otg_sequence = true;
 	}
 	return hws;
 }
@@ -1947,10 +1940,7 @@ static bool dcn315_resource_construct(
 
 	if (dc->ctx->dce_environment == DCE_ENV_PRODUCTION_DRV)
 		dc->debug = debug_defaults_drv;
-	else if (dc->ctx->dce_environment == DCE_ENV_FPGA_MAXIMUS) {
-		dc->debug = debug_defaults_diags;
-	} else
-		dc->debug = debug_defaults_diags;
+
 	// Init the vm_helper
 	if (dc->vm_helper)
 		vm_helper_init(dc->vm_helper, 16);
@@ -2131,9 +2121,8 @@ static bool dcn315_resource_construct(
 
 	/* Audio, Stream Encoders including HPO and virtual, MPC 3D LUTs */
 	if (!resource_construct(num_virtual_links, dc, &pool->base,
-			(!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) ?
-			&res_create_funcs : &res_create_maximus_funcs)))
-			goto create_fail;
+			&res_create_funcs))
+		goto create_fail;
 
 	/* HW Sequencer and Plane caps */
 	dcn31_hw_sequencer_construct(dc);
diff --git a/drivers/gpu/drm/amd/display/dc/dcn316/dcn316_resource.c b/drivers/gpu/drm/amd/display/dc/dcn316/dcn316_resource.c
index 9ead347a33e9..a3be61cc541f 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn316/dcn316_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn316/dcn316_resource.c
@@ -1340,13 +1340,6 @@ static struct dce_hwseq *dcn31_hwseq_create(
 		hws->regs = &hwseq_reg;
 		hws->shifts = &hwseq_shift;
 		hws->masks = &hwseq_mask;
-		/* DCN3.1 FPGA Workaround
-		 * Need to enable HPO DP Stream Encoder before setting OTG master enable.
-		 * To do so, move calling function enable_stream_timing to only be done AFTER calling
-		 * function core_link_enable_stream
-		 */
-		if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment))
-			hws->wa.dp_hpo_and_otg_sequence = true;
 	}
 	return hws;
 }
@@ -1844,10 +1837,7 @@ static bool dcn316_resource_construct(
 
 	if (dc->ctx->dce_environment == DCE_ENV_PRODUCTION_DRV)
 		dc->debug = debug_defaults_drv;
-	else if (dc->ctx->dce_environment == DCE_ENV_FPGA_MAXIMUS) {
-		dc->debug = debug_defaults_diags;
-	} else
-		dc->debug = debug_defaults_diags;
+
 	// Init the vm_helper
 	if (dc->vm_helper)
 		vm_helper_init(dc->vm_helper, 16);
@@ -2028,9 +2018,8 @@ static bool dcn316_resource_construct(
 
 	/* Audio, Stream Encoders including HPO and virtual, MPC 3D LUTs */
 	if (!resource_construct(num_virtual_links, dc, &pool->base,
-			(!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) ?
-			&res_create_funcs : &res_create_maximus_funcs)))
-			goto create_fail;
+			&res_create_funcs))
+		goto create_fail;
 
 	/* HW Sequencer and Plane caps */
 	dcn31_hw_sequencer_construct(dc);
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c
index 24a890d879b8..6f9a165c1eab 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c
@@ -161,8 +161,4 @@ void dcn32_hw_sequencer_init_functions(struct dc *dc)
 	dc->hwss = dcn32_funcs;
 	dc->hwseq->funcs = dcn32_private_funcs;
 
-	if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		dc->hwss.init_hw = dcn20_fpga_init_hw;
-		dc->hwseq->funcs.init_pipes = NULL;
-	}
 }
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
index 98c394f9f8cf..33abc8c9d4be 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
@@ -2260,10 +2260,7 @@ static bool dcn32_resource_construct(
 
 	if (dc->ctx->dce_environment == DCE_ENV_PRODUCTION_DRV)
 		dc->debug = debug_defaults_drv;
-	else if (dc->ctx->dce_environment == DCE_ENV_FPGA_MAXIMUS) {
-		dc->debug = debug_defaults_diags;
-	} else
-		dc->debug = debug_defaults_diags;
+
 	// Init the vm_helper
 	if (dc->vm_helper)
 		vm_helper_init(dc->vm_helper, 16);
@@ -2319,8 +2316,7 @@ static bool dcn32_resource_construct(
 	}
 
 	/* DML */
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment))
-		dml_init_instance(&dc->dml, &dcn3_2_soc, &dcn3_2_ip, DML_PROJECT_DCN32);
+	dml_init_instance(&dc->dml, &dcn3_2_soc, &dcn3_2_ip, DML_PROJECT_DCN32);
 
 	/* IRQ Service */
 	init_data.ctx = dc->ctx;
@@ -2457,9 +2453,8 @@ static bool dcn32_resource_construct(
 
 	/* Audio, HWSeq, Stream Encoders including HPO and virtual, MPC 3D LUTs */
 	if (!resource_construct(num_virtual_links, dc, &pool->base,
-			(!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) ?
-			&res_create_funcs : &res_create_maximus_funcs)))
-			goto create_fail;
+			&res_create_funcs))
+		goto create_fail;
 
 	/* HW Sequencer init functions and Plane caps */
 	dcn32_hw_sequencer_init_functions(dc);
diff --git a/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c b/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c
index f4cd9749ffdf..af0bb3e94250 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c
@@ -1801,10 +1801,7 @@ static bool dcn321_resource_construct(
 
 	if (dc->ctx->dce_environment == DCE_ENV_PRODUCTION_DRV)
 		dc->debug = debug_defaults_drv;
-	else if (dc->ctx->dce_environment == DCE_ENV_FPGA_MAXIMUS) {
-		dc->debug = debug_defaults_diags;
-	} else
-		dc->debug = debug_defaults_diags;
+
 	// Init the vm_helper
 	if (dc->vm_helper)
 		vm_helper_init(dc->vm_helper, 16);
@@ -1860,8 +1857,7 @@ static bool dcn321_resource_construct(
 	}
 
 	/* DML */
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment))
-		dml_init_instance(&dc->dml, &dcn3_21_soc, &dcn3_21_ip, DML_PROJECT_DCN32);
+	dml_init_instance(&dc->dml, &dcn3_21_soc, &dcn3_21_ip, DML_PROJECT_DCN32);
 
 	/* IRQ Service */
 	init_data.ctx = dc->ctx;
@@ -1993,9 +1989,8 @@ static bool dcn321_resource_construct(
 
 	/* Audio, HWSeq, Stream Encoders including HPO and virtual, MPC 3D LUTs */
 	if (!resource_construct(num_virtual_links, dc, &pool->base,
-			(!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) ?
-			&res_create_funcs : &res_create_maximus_funcs)))
-			goto create_fail;
+			&res_create_funcs))
+		goto create_fail;
 
 	/* HW Sequencer init functions and Plane caps */
 	dcn32_hw_sequencer_init_functions(dc);
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn301/dcn301_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn301/dcn301_fpu.c
index 422f17aefd4a..6ce90678b33c 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn301/dcn301_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn301/dcn301_fpu.c
@@ -333,45 +333,43 @@ void dcn301_update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_param
 	memcpy(s, dcn3_01_soc.clock_limits, sizeof(dcn3_01_soc.clock_limits));
 
 	/* Default clock levels are used for diags, which may lead to overclocking. */
-	if (!IS_DIAG_DC(dc->ctx->dce_environment)) {
-		dcn3_01_ip.max_num_otg = pool->base.res_cap->num_timing_generator;
-		dcn3_01_ip.max_num_dpp = pool->base.pipe_count;
-		dcn3_01_soc.num_chans = bw_params->num_channels;
-
-		ASSERT(clk_table->num_entries);
-		for (i = 0; i < clk_table->num_entries; i++) {
-			/* loop backwards*/
-			for (closest_clk_lvl = 0, j = dcn3_01_soc.num_states - 1; j >= 0; j--) {
-				if ((unsigned int) dcn3_01_soc.clock_limits[j].dcfclk_mhz <= clk_table->entries[i].dcfclk_mhz) {
-					closest_clk_lvl = j;
-					break;
-				}
+	dcn3_01_ip.max_num_otg = pool->base.res_cap->num_timing_generator;
+	dcn3_01_ip.max_num_dpp = pool->base.pipe_count;
+	dcn3_01_soc.num_chans = bw_params->num_channels;
+
+	ASSERT(clk_table->num_entries);
+	for (i = 0; i < clk_table->num_entries; i++) {
+		/* loop backwards*/
+		for (closest_clk_lvl = 0, j = dcn3_01_soc.num_states - 1; j >= 0; j--) {
+			if ((unsigned int) dcn3_01_soc.clock_limits[j].dcfclk_mhz <= clk_table->entries[i].dcfclk_mhz) {
+				closest_clk_lvl = j;
+				break;
 			}
-
-			s[i].state = i;
-			s[i].dcfclk_mhz = clk_table->entries[i].dcfclk_mhz;
-			s[i].fabricclk_mhz = clk_table->entries[i].fclk_mhz;
-			s[i].socclk_mhz = clk_table->entries[i].socclk_mhz;
-			s[i].dram_speed_mts = clk_table->entries[i].memclk_mhz * 2;
-
-			s[i].dispclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dispclk_mhz;
-			s[i].dppclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dppclk_mhz;
-			s[i].dram_bw_per_chan_gbps =
-				dcn3_01_soc.clock_limits[closest_clk_lvl].dram_bw_per_chan_gbps;
-			s[i].dscclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dscclk_mhz;
-			s[i].dtbclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dtbclk_mhz;
-			s[i].phyclk_d18_mhz =
-				dcn3_01_soc.clock_limits[closest_clk_lvl].phyclk_d18_mhz;
-			s[i].phyclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].phyclk_mhz;
 		}
 
-		if (clk_table->num_entries) {
-			dcn3_01_soc.num_states = clk_table->num_entries;
-			/* duplicate last level */
-			s[dcn3_01_soc.num_states] =
-				dcn3_01_soc.clock_limits[dcn3_01_soc.num_states - 1];
-			s[dcn3_01_soc.num_states].state = dcn3_01_soc.num_states;
-		}
+		s[i].state = i;
+		s[i].dcfclk_mhz = clk_table->entries[i].dcfclk_mhz;
+		s[i].fabricclk_mhz = clk_table->entries[i].fclk_mhz;
+		s[i].socclk_mhz = clk_table->entries[i].socclk_mhz;
+		s[i].dram_speed_mts = clk_table->entries[i].memclk_mhz * 2;
+
+		s[i].dispclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dispclk_mhz;
+		s[i].dppclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dppclk_mhz;
+		s[i].dram_bw_per_chan_gbps =
+			dcn3_01_soc.clock_limits[closest_clk_lvl].dram_bw_per_chan_gbps;
+		s[i].dscclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dscclk_mhz;
+		s[i].dtbclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dtbclk_mhz;
+		s[i].phyclk_d18_mhz =
+			dcn3_01_soc.clock_limits[closest_clk_lvl].phyclk_d18_mhz;
+		s[i].phyclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].phyclk_mhz;
+	}
+
+	if (clk_table->num_entries) {
+		dcn3_01_soc.num_states = clk_table->num_entries;
+		/* duplicate last level */
+		s[dcn3_01_soc.num_states] =
+			dcn3_01_soc.clock_limits[dcn3_01_soc.num_states - 1];
+		s[dcn3_01_soc.num_states].state = dcn3_01_soc.num_states;
 	}
 
 	memcpy(dcn3_01_soc.clock_limits, s, sizeof(dcn3_01_soc.clock_limits));
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn31/dcn31_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn31/dcn31_fpu.c
index 19d034341e64..deb6d162a2d5 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn31/dcn31_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn31/dcn31_fpu.c
@@ -582,6 +582,7 @@ void dcn31_update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_params
 	struct _vcs_dpi_voltage_scaling_st *s = dc->scratch.update_bw_bounding_box.clock_limits;
 	struct clk_limit_table *clk_table = &bw_params->clk_table;
 	unsigned int i, closest_clk_lvl;
+	int max_dispclk_mhz = 0, max_dppclk_mhz = 0;
 	int j;
 
 	dc_assert_fp_enabled();
@@ -589,59 +590,55 @@ void dcn31_update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_params
 	memcpy(s, dcn3_1_soc.clock_limits, sizeof(dcn3_1_soc.clock_limits));
 
 	// Default clock levels are used for diags, which may lead to overclocking.
-	if (!IS_DIAG_DC(dc->ctx->dce_environment)) {
-		int max_dispclk_mhz = 0, max_dppclk_mhz = 0;
+	dcn3_1_ip.max_num_otg = dc->res_pool->res_cap->num_timing_generator;
+	dcn3_1_ip.max_num_dpp = dc->res_pool->pipe_count;
+	dcn3_1_soc.num_chans = bw_params->num_channels;
 
-		dcn3_1_ip.max_num_otg = dc->res_pool->res_cap->num_timing_generator;
-		dcn3_1_ip.max_num_dpp = dc->res_pool->pipe_count;
-		dcn3_1_soc.num_chans = bw_params->num_channels;
+	ASSERT(clk_table->num_entries);
 
-		ASSERT(clk_table->num_entries);
+	/* Prepass to find max clocks independent of voltage level. */
+	for (i = 0; i < clk_table->num_entries; ++i) {
+		if (clk_table->entries[i].dispclk_mhz > max_dispclk_mhz)
+			max_dispclk_mhz = clk_table->entries[i].dispclk_mhz;
+		if (clk_table->entries[i].dppclk_mhz > max_dppclk_mhz)
+			max_dppclk_mhz = clk_table->entries[i].dppclk_mhz;
+	}
 
-		/* Prepass to find max clocks independent of voltage level. */
-		for (i = 0; i < clk_table->num_entries; ++i) {
-			if (clk_table->entries[i].dispclk_mhz > max_dispclk_mhz)
-				max_dispclk_mhz = clk_table->entries[i].dispclk_mhz;
-			if (clk_table->entries[i].dppclk_mhz > max_dppclk_mhz)
-				max_dppclk_mhz = clk_table->entries[i].dppclk_mhz;
+	for (i = 0; i < clk_table->num_entries; i++) {
+		/* loop backwards*/
+		for (closest_clk_lvl = 0, j = dcn3_1_soc.num_states - 1; j >= 0; j--) {
+			if ((unsigned int) dcn3_1_soc.clock_limits[j].dcfclk_mhz <= clk_table->entries[i].dcfclk_mhz) {
+				closest_clk_lvl = j;
+				break;
+			}
 		}
 
-		for (i = 0; i < clk_table->num_entries; i++) {
-			/* loop backwards*/
-			for (closest_clk_lvl = 0, j = dcn3_1_soc.num_states - 1; j >= 0; j--) {
-				if ((unsigned int) dcn3_1_soc.clock_limits[j].dcfclk_mhz <= clk_table->entries[i].dcfclk_mhz) {
-					closest_clk_lvl = j;
-					break;
-				}
-			}
+		s[i].state = i;
 
-			s[i].state = i;
-
-			/* Clocks dependent on voltage level. */
-			s[i].dcfclk_mhz = clk_table->entries[i].dcfclk_mhz;
-			s[i].fabricclk_mhz = clk_table->entries[i].fclk_mhz;
-			s[i].socclk_mhz = clk_table->entries[i].socclk_mhz;
-			s[i].dram_speed_mts = clk_table->entries[i].memclk_mhz *
-				2 * clk_table->entries[i].wck_ratio;
-
-			/* Clocks independent of voltage level. */
-			s[i].dispclk_mhz = max_dispclk_mhz ? max_dispclk_mhz :
-				dcn3_1_soc.clock_limits[closest_clk_lvl].dispclk_mhz;
-
-			s[i].dppclk_mhz = max_dppclk_mhz ? max_dppclk_mhz :
-				dcn3_1_soc.clock_limits[closest_clk_lvl].dppclk_mhz;
-
-			s[i].dram_bw_per_chan_gbps =
-				dcn3_1_soc.clock_limits[closest_clk_lvl].dram_bw_per_chan_gbps;
-			s[i].dscclk_mhz = dcn3_1_soc.clock_limits[closest_clk_lvl].dscclk_mhz;
-			s[i].dtbclk_mhz = dcn3_1_soc.clock_limits[closest_clk_lvl].dtbclk_mhz;
-			s[i].phyclk_d18_mhz =
-				dcn3_1_soc.clock_limits[closest_clk_lvl].phyclk_d18_mhz;
-			s[i].phyclk_mhz = dcn3_1_soc.clock_limits[closest_clk_lvl].phyclk_mhz;
-		}
-		if (clk_table->num_entries) {
-			dcn3_1_soc.num_states = clk_table->num_entries;
-		}
+		/* Clocks dependent on voltage level. */
+		s[i].dcfclk_mhz = clk_table->entries[i].dcfclk_mhz;
+		s[i].fabricclk_mhz = clk_table->entries[i].fclk_mhz;
+		s[i].socclk_mhz = clk_table->entries[i].socclk_mhz;
+		s[i].dram_speed_mts = clk_table->entries[i].memclk_mhz *
+			2 * clk_table->entries[i].wck_ratio;
+
+		/* Clocks independent of voltage level. */
+		s[i].dispclk_mhz = max_dispclk_mhz ? max_dispclk_mhz :
+			dcn3_1_soc.clock_limits[closest_clk_lvl].dispclk_mhz;
+
+		s[i].dppclk_mhz = max_dppclk_mhz ? max_dppclk_mhz :
+			dcn3_1_soc.clock_limits[closest_clk_lvl].dppclk_mhz;
+
+		s[i].dram_bw_per_chan_gbps =
+			dcn3_1_soc.clock_limits[closest_clk_lvl].dram_bw_per_chan_gbps;
+		s[i].dscclk_mhz = dcn3_1_soc.clock_limits[closest_clk_lvl].dscclk_mhz;
+		s[i].dtbclk_mhz = dcn3_1_soc.clock_limits[closest_clk_lvl].dtbclk_mhz;
+		s[i].phyclk_d18_mhz =
+			dcn3_1_soc.clock_limits[closest_clk_lvl].phyclk_d18_mhz;
+		s[i].phyclk_mhz = dcn3_1_soc.clock_limits[closest_clk_lvl].phyclk_mhz;
+	}
+	if (clk_table->num_entries) {
+		dcn3_1_soc.num_states = clk_table->num_entries;
 	}
 
 	memcpy(dcn3_1_soc.clock_limits, s, sizeof(dcn3_1_soc.clock_limits));
@@ -655,10 +652,7 @@ void dcn31_update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_params
 		dcn3_1_soc.dram_clock_change_latency_us = dc->debug.dram_clock_change_latency_ns / 1000;
 	}
 
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment))
-		dml_init_instance(&dc->dml, &dcn3_1_soc, &dcn3_1_ip, DML_PROJECT_DCN31);
-	else
-		dml_init_instance(&dc->dml, &dcn3_1_soc, &dcn3_1_ip, DML_PROJECT_DCN31_FPGA);
+	dml_init_instance(&dc->dml, &dcn3_1_soc, &dcn3_1_ip, DML_PROJECT_DCN31);
 }
 
 void dcn315_update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_params)
@@ -719,10 +713,7 @@ void dcn315_update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_param
 		dcn3_15_soc.dram_clock_change_latency_us = dc->debug.dram_clock_change_latency_ns / 1000;
 	}
 
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment))
-		dml_init_instance(&dc->dml, &dcn3_15_soc, &dcn3_15_ip, DML_PROJECT_DCN315);
-	else
-		dml_init_instance(&dc->dml, &dcn3_15_soc, &dcn3_15_ip, DML_PROJECT_DCN31_FPGA);
+	dml_init_instance(&dc->dml, &dcn3_15_soc, &dcn3_15_ip, DML_PROJECT_DCN315);
 }
 
 void dcn316_update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_params)
@@ -738,71 +729,68 @@ void dcn316_update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_param
 	memcpy(s, dcn3_16_soc.clock_limits, sizeof(dcn3_16_soc.clock_limits));
 
 	// Default clock levels are used for diags, which may lead to overclocking.
-	if (!IS_DIAG_DC(dc->ctx->dce_environment)) {
-
-		dcn3_16_ip.max_num_otg = dc->res_pool->res_cap->num_timing_generator;
-		dcn3_16_ip.max_num_dpp = dc->res_pool->pipe_count;
-		dcn3_16_soc.num_chans = bw_params->num_channels;
+	dcn3_16_ip.max_num_otg = dc->res_pool->res_cap->num_timing_generator;
+	dcn3_16_ip.max_num_dpp = dc->res_pool->pipe_count;
+	dcn3_16_soc.num_chans = bw_params->num_channels;
 
-		ASSERT(clk_table->num_entries);
+	ASSERT(clk_table->num_entries);
 
-		/* Prepass to find max clocks independent of voltage level. */
-		for (i = 0; i < clk_table->num_entries; ++i) {
-			if (clk_table->entries[i].dispclk_mhz > max_dispclk_mhz)
-				max_dispclk_mhz = clk_table->entries[i].dispclk_mhz;
-			if (clk_table->entries[i].dppclk_mhz > max_dppclk_mhz)
-				max_dppclk_mhz = clk_table->entries[i].dppclk_mhz;
-		}
+	/* Prepass to find max clocks independent of voltage level. */
+	for (i = 0; i < clk_table->num_entries; ++i) {
+		if (clk_table->entries[i].dispclk_mhz > max_dispclk_mhz)
+			max_dispclk_mhz = clk_table->entries[i].dispclk_mhz;
+		if (clk_table->entries[i].dppclk_mhz > max_dppclk_mhz)
+			max_dppclk_mhz = clk_table->entries[i].dppclk_mhz;
+	}
 
-		for (i = 0; i < clk_table->num_entries; i++) {
-			/* loop backwards*/
-			for (closest_clk_lvl = 0, j = dcn3_16_soc.num_states - 1; j >= 0; j--) {
-				if ((unsigned int) dcn3_16_soc.clock_limits[j].dcfclk_mhz <=
-				    clk_table->entries[i].dcfclk_mhz) {
-					closest_clk_lvl = j;
-					break;
-				}
-			}
-			// Ported from DCN315
-			if (clk_table->num_entries == 1) {
-				/*smu gives one DPM level, let's take the highest one*/
-				closest_clk_lvl = dcn3_16_soc.num_states - 1;
+	for (i = 0; i < clk_table->num_entries; i++) {
+		/* loop backwards*/
+		for (closest_clk_lvl = 0, j = dcn3_16_soc.num_states - 1; j >= 0; j--) {
+			if ((unsigned int) dcn3_16_soc.clock_limits[j].dcfclk_mhz <=
+			    clk_table->entries[i].dcfclk_mhz) {
+				closest_clk_lvl = j;
+				break;
 			}
+		}
+		// Ported from DCN315
+		if (clk_table->num_entries == 1) {
+			/*smu gives one DPM level, let's take the highest one*/
+			closest_clk_lvl = dcn3_16_soc.num_states - 1;
+		}
 
-			s[i].state = i;
+		s[i].state = i;
 
-			/* Clocks dependent on voltage level. */
-			s[i].dcfclk_mhz = clk_table->entries[i].dcfclk_mhz;
-			if (clk_table->num_entries == 1 &&
-			    s[i].dcfclk_mhz <
-			    dcn3_16_soc.clock_limits[closest_clk_lvl].dcfclk_mhz) {
-				/*SMU fix not released yet*/
-				s[i].dcfclk_mhz =
-					dcn3_16_soc.clock_limits[closest_clk_lvl].dcfclk_mhz;
-			}
-			s[i].fabricclk_mhz = clk_table->entries[i].fclk_mhz;
-			s[i].socclk_mhz = clk_table->entries[i].socclk_mhz;
-			s[i].dram_speed_mts = clk_table->entries[i].memclk_mhz *
-				2 * clk_table->entries[i].wck_ratio;
-
-			/* Clocks independent of voltage level. */
-			s[i].dispclk_mhz = max_dispclk_mhz ? max_dispclk_mhz :
-				dcn3_16_soc.clock_limits[closest_clk_lvl].dispclk_mhz;
-
-			s[i].dppclk_mhz = max_dppclk_mhz ? max_dppclk_mhz :
-				dcn3_16_soc.clock_limits[closest_clk_lvl].dppclk_mhz;
-
-			s[i].dram_bw_per_chan_gbps =
-				dcn3_16_soc.clock_limits[closest_clk_lvl].dram_bw_per_chan_gbps;
-			s[i].dscclk_mhz = dcn3_16_soc.clock_limits[closest_clk_lvl].dscclk_mhz;
-			s[i].dtbclk_mhz = dcn3_16_soc.clock_limits[closest_clk_lvl].dtbclk_mhz;
-			s[i].phyclk_d18_mhz =
-				dcn3_16_soc.clock_limits[closest_clk_lvl].phyclk_d18_mhz;
-			s[i].phyclk_mhz = dcn3_16_soc.clock_limits[closest_clk_lvl].phyclk_mhz;
-		}
-		if (clk_table->num_entries) {
-			dcn3_16_soc.num_states = clk_table->num_entries;
+		/* Clocks dependent on voltage level. */
+		s[i].dcfclk_mhz = clk_table->entries[i].dcfclk_mhz;
+		if (clk_table->num_entries == 1 &&
+		    s[i].dcfclk_mhz <
+		    dcn3_16_soc.clock_limits[closest_clk_lvl].dcfclk_mhz) {
+			/*SMU fix not released yet*/
+			s[i].dcfclk_mhz =
+				dcn3_16_soc.clock_limits[closest_clk_lvl].dcfclk_mhz;
 		}
+		s[i].fabricclk_mhz = clk_table->entries[i].fclk_mhz;
+		s[i].socclk_mhz = clk_table->entries[i].socclk_mhz;
+		s[i].dram_speed_mts = clk_table->entries[i].memclk_mhz *
+			2 * clk_table->entries[i].wck_ratio;
+
+		/* Clocks independent of voltage level. */
+		s[i].dispclk_mhz = max_dispclk_mhz ? max_dispclk_mhz :
+			dcn3_16_soc.clock_limits[closest_clk_lvl].dispclk_mhz;
+
+		s[i].dppclk_mhz = max_dppclk_mhz ? max_dppclk_mhz :
+			dcn3_16_soc.clock_limits[closest_clk_lvl].dppclk_mhz;
+
+		s[i].dram_bw_per_chan_gbps =
+			dcn3_16_soc.clock_limits[closest_clk_lvl].dram_bw_per_chan_gbps;
+		s[i].dscclk_mhz = dcn3_16_soc.clock_limits[closest_clk_lvl].dscclk_mhz;
+		s[i].dtbclk_mhz = dcn3_16_soc.clock_limits[closest_clk_lvl].dtbclk_mhz;
+		s[i].phyclk_d18_mhz =
+			dcn3_16_soc.clock_limits[closest_clk_lvl].phyclk_d18_mhz;
+		s[i].phyclk_mhz = dcn3_16_soc.clock_limits[closest_clk_lvl].phyclk_mhz;
+	}
+	if (clk_table->num_entries) {
+		dcn3_16_soc.num_states = clk_table->num_entries;
 	}
 
 	memcpy(dcn3_16_soc.clock_limits, s, sizeof(dcn3_16_soc.clock_limits));
@@ -817,10 +805,7 @@ void dcn316_update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_param
 		dcn3_16_soc.dram_clock_change_latency_us = dc->debug.dram_clock_change_latency_ns / 1000;
 	}
 
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment))
-		dml_init_instance(&dc->dml, &dcn3_16_soc, &dcn3_16_ip, DML_PROJECT_DCN31);
-	else
-		dml_init_instance(&dc->dml, &dcn3_16_soc, &dcn3_16_ip, DML_PROJECT_DCN31_FPGA);
+	dml_init_instance(&dc->dml, &dcn3_16_soc, &dcn3_16_ip, DML_PROJECT_DCN31);
 }
 
 int dcn_get_max_non_odm_pix_rate_100hz(struct _vcs_dpi_soc_bounding_box_st *soc)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_rq_dlg_calc_31.c b/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_rq_dlg_calc_31.c
index fcde8f21b8be..4113ce79c4af 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_rq_dlg_calc_31.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_rq_dlg_calc_31.c
@@ -1432,14 +1432,6 @@ static void dml_rq_dlg_get_dlg_params(
 	dml_print("DML_DLG: %s: disp_dlg_regs->dst_y_per_vm_flip    = 0x%x\n", __func__, disp_dlg_regs->dst_y_per_vm_flip);
 	dml_print("DML_DLG: %s: disp_dlg_regs->dst_y_per_row_flip   = 0x%x\n", __func__, disp_dlg_regs->dst_y_per_row_flip);
 
-	// hack for FPGA
-	if (mode_lib->project == DML_PROJECT_DCN31_FPGA) {
-		if (disp_dlg_regs->vratio_prefetch >= (unsigned int) dml_pow(2, 22)) {
-			disp_dlg_regs->vratio_prefetch = (unsigned int) dml_pow(2, 22) - 1;
-			dml_print("vratio_prefetch exceed the max value, the register field is [21:0]\n");
-		}
-	}
-
 	disp_dlg_regs->refcyc_per_pte_group_vblank_l = (unsigned int) (dst_y_per_row_vblank * (double) htotal * ref_freq_to_pix_freq / (double) dpte_groups_per_row_ub_l);
 	ASSERT(disp_dlg_regs->refcyc_per_pte_group_vblank_l < (unsigned int)dml_pow(2, 13));
 
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c
index 554152371eb5..318b9c2bc9be 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c
@@ -190,8 +190,7 @@ void dcn314_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_p
 	dc_assert_fp_enabled();
 
 	// Default clock levels are used for diags, which may lead to overclocking.
-	if (!IS_DIAG_DC(dc->ctx->dce_environment) && dc->config.use_default_clock_table == false) {
-
+	if (dc->config.use_default_clock_table == false) {
 		dcn3_14_ip.max_num_otg = dc->res_pool->res_cap->num_timing_generator;
 		dcn3_14_ip.max_num_dpp = dc->res_pool->pipe_count;
 
@@ -267,10 +266,7 @@ void dcn314_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_p
 
 	dcn20_patch_bounding_box(dc, &dcn3_14_soc);
 
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment))
 		dml_init_instance(&dc->dml, &dcn3_14_soc, &dcn3_14_ip, DML_PROJECT_DCN314);
-	else
-		dml_init_instance(&dc->dml, &dcn3_14_soc, &dcn3_14_ip, DML_PROJECT_DCN31_FPGA);
 }
 
 static bool is_dual_plane(enum surface_pixel_format format)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_rq_dlg_calc_314.c b/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_rq_dlg_calc_314.c
index 61ba3e33bb11..b3e8dc08030c 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_rq_dlg_calc_314.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_rq_dlg_calc_314.c
@@ -1520,14 +1520,6 @@ static void dml_rq_dlg_get_dlg_params(
 	dml_print("DML_DLG: %s: disp_dlg_regs->dst_y_per_vm_flip    = 0x%x\n", __func__, disp_dlg_regs->dst_y_per_vm_flip);
 	dml_print("DML_DLG: %s: disp_dlg_regs->dst_y_per_row_flip   = 0x%x\n", __func__, disp_dlg_regs->dst_y_per_row_flip);
 
-	// hack for FPGA
-	if (mode_lib->project == DML_PROJECT_DCN31_FPGA) {
-		if (disp_dlg_regs->vratio_prefetch >= (unsigned int) dml_pow(2, 22)) {
-			disp_dlg_regs->vratio_prefetch = (unsigned int) dml_pow(2, 22) - 1;
-			dml_print("vratio_prefetch exceed the max value, the register field is [21:0]\n");
-		}
-	}
-
 	disp_dlg_regs->refcyc_per_pte_group_vblank_l = (unsigned int) (dst_y_per_row_vblank * (double) htotal * ref_freq_to_pix_freq / (double) dpte_groups_per_row_ub_l);
 	ASSERT(disp_dlg_regs->refcyc_per_pte_group_vblank_l < (unsigned int)dml_pow(2, 13));
 
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
index d8d8fcd5ef1f..137ff970c9aa 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
@@ -2530,80 +2530,78 @@ void dcn32_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_pa
 {
 	dc_assert_fp_enabled();
 
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		/* Overrides from dc->config options */
-		dcn3_2_ip.clamp_min_dcfclk = dc->config.clamp_min_dcfclk;
-
-		/* Override from passed dc->bb_overrides if available*/
-		if ((int)(dcn3_2_soc.sr_exit_time_us * 1000) != dc->bb_overrides.sr_exit_time_ns
-				&& dc->bb_overrides.sr_exit_time_ns) {
-			dcn3_2_soc.sr_exit_time_us = dc->bb_overrides.sr_exit_time_ns / 1000.0;
-		}
+	/* Overrides from dc->config options */
+	dcn3_2_ip.clamp_min_dcfclk = dc->config.clamp_min_dcfclk;
 
-		if ((int)(dcn3_2_soc.sr_enter_plus_exit_time_us * 1000)
-				!= dc->bb_overrides.sr_enter_plus_exit_time_ns
-				&& dc->bb_overrides.sr_enter_plus_exit_time_ns) {
-			dcn3_2_soc.sr_enter_plus_exit_time_us =
-				dc->bb_overrides.sr_enter_plus_exit_time_ns / 1000.0;
-		}
+	/* Override from passed dc->bb_overrides if available*/
+	if ((int)(dcn3_2_soc.sr_exit_time_us * 1000) != dc->bb_overrides.sr_exit_time_ns
+			&& dc->bb_overrides.sr_exit_time_ns) {
+		dcn3_2_soc.sr_exit_time_us = dc->bb_overrides.sr_exit_time_ns / 1000.0;
+	}
 
-		if ((int)(dcn3_2_soc.urgent_latency_us * 1000) != dc->bb_overrides.urgent_latency_ns
-			&& dc->bb_overrides.urgent_latency_ns) {
-			dcn3_2_soc.urgent_latency_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
-			dcn3_2_soc.urgent_latency_pixel_data_only_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
-		}
+	if ((int)(dcn3_2_soc.sr_enter_plus_exit_time_us * 1000)
+			!= dc->bb_overrides.sr_enter_plus_exit_time_ns
+			&& dc->bb_overrides.sr_enter_plus_exit_time_ns) {
+		dcn3_2_soc.sr_enter_plus_exit_time_us =
+			dc->bb_overrides.sr_enter_plus_exit_time_ns / 1000.0;
+	}
 
-		if ((int)(dcn3_2_soc.dram_clock_change_latency_us * 1000)
-				!= dc->bb_overrides.dram_clock_change_latency_ns
-				&& dc->bb_overrides.dram_clock_change_latency_ns) {
-			dcn3_2_soc.dram_clock_change_latency_us =
-				dc->bb_overrides.dram_clock_change_latency_ns / 1000.0;
-		}
+	if ((int)(dcn3_2_soc.urgent_latency_us * 1000) != dc->bb_overrides.urgent_latency_ns
+		&& dc->bb_overrides.urgent_latency_ns) {
+		dcn3_2_soc.urgent_latency_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
+		dcn3_2_soc.urgent_latency_pixel_data_only_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
+	}
 
-		if ((int)(dcn3_2_soc.fclk_change_latency_us * 1000)
-				!= dc->bb_overrides.fclk_clock_change_latency_ns
-				&& dc->bb_overrides.fclk_clock_change_latency_ns) {
-			dcn3_2_soc.fclk_change_latency_us =
-				dc->bb_overrides.fclk_clock_change_latency_ns / 1000;
-		}
+	if ((int)(dcn3_2_soc.dram_clock_change_latency_us * 1000)
+			!= dc->bb_overrides.dram_clock_change_latency_ns
+			&& dc->bb_overrides.dram_clock_change_latency_ns) {
+		dcn3_2_soc.dram_clock_change_latency_us =
+			dc->bb_overrides.dram_clock_change_latency_ns / 1000.0;
+	}
 
-		if ((int)(dcn3_2_soc.dummy_pstate_latency_us * 1000)
-				!= dc->bb_overrides.dummy_clock_change_latency_ns
-				&& dc->bb_overrides.dummy_clock_change_latency_ns) {
-			dcn3_2_soc.dummy_pstate_latency_us =
-				dc->bb_overrides.dummy_clock_change_latency_ns / 1000.0;
-		}
+	if ((int)(dcn3_2_soc.fclk_change_latency_us * 1000)
+			!= dc->bb_overrides.fclk_clock_change_latency_ns
+			&& dc->bb_overrides.fclk_clock_change_latency_ns) {
+		dcn3_2_soc.fclk_change_latency_us =
+			dc->bb_overrides.fclk_clock_change_latency_ns / 1000;
+	}
 
-		/* Override from VBIOS if VBIOS bb_info available */
-		if (dc->ctx->dc_bios->funcs->get_soc_bb_info) {
-			struct bp_soc_bb_info bb_info = {0};
+	if ((int)(dcn3_2_soc.dummy_pstate_latency_us * 1000)
+			!= dc->bb_overrides.dummy_clock_change_latency_ns
+			&& dc->bb_overrides.dummy_clock_change_latency_ns) {
+		dcn3_2_soc.dummy_pstate_latency_us =
+			dc->bb_overrides.dummy_clock_change_latency_ns / 1000.0;
+	}
 
-			if (dc->ctx->dc_bios->funcs->get_soc_bb_info(dc->ctx->dc_bios, &bb_info) == BP_RESULT_OK) {
-				if (bb_info.dram_clock_change_latency_100ns > 0)
-					dcn3_2_soc.dram_clock_change_latency_us =
-						bb_info.dram_clock_change_latency_100ns * 10;
+	/* Override from VBIOS if VBIOS bb_info available */
+	if (dc->ctx->dc_bios->funcs->get_soc_bb_info) {
+		struct bp_soc_bb_info bb_info = {0};
 
-				if (bb_info.dram_sr_enter_exit_latency_100ns > 0)
-					dcn3_2_soc.sr_enter_plus_exit_time_us =
-						bb_info.dram_sr_enter_exit_latency_100ns * 10;
+		if (dc->ctx->dc_bios->funcs->get_soc_bb_info(dc->ctx->dc_bios, &bb_info) == BP_RESULT_OK) {
+			if (bb_info.dram_clock_change_latency_100ns > 0)
+				dcn3_2_soc.dram_clock_change_latency_us =
+					bb_info.dram_clock_change_latency_100ns * 10;
 
-				if (bb_info.dram_sr_exit_latency_100ns > 0)
-					dcn3_2_soc.sr_exit_time_us =
-						bb_info.dram_sr_exit_latency_100ns * 10;
-			}
-		}
+			if (bb_info.dram_sr_enter_exit_latency_100ns > 0)
+				dcn3_2_soc.sr_enter_plus_exit_time_us =
+					bb_info.dram_sr_enter_exit_latency_100ns * 10;
 
-		/* Override from VBIOS for num_chan */
-		if (dc->ctx->dc_bios->vram_info.num_chans) {
-			dcn3_2_soc.num_chans = dc->ctx->dc_bios->vram_info.num_chans;
-			dcn3_2_soc.mall_allocated_for_dcn_mbytes = (double)(dcn32_calc_num_avail_chans_for_mall(dc,
-				dc->ctx->dc_bios->vram_info.num_chans) * dc->caps.mall_size_per_mem_channel);
+			if (bb_info.dram_sr_exit_latency_100ns > 0)
+				dcn3_2_soc.sr_exit_time_us =
+					bb_info.dram_sr_exit_latency_100ns * 10;
 		}
+	}
 
-		if (dc->ctx->dc_bios->vram_info.dram_channel_width_bytes)
-			dcn3_2_soc.dram_channel_width_bytes = dc->ctx->dc_bios->vram_info.dram_channel_width_bytes;
+	/* Override from VBIOS for num_chan */
+	if (dc->ctx->dc_bios->vram_info.num_chans) {
+		dcn3_2_soc.num_chans = dc->ctx->dc_bios->vram_info.num_chans;
+		dcn3_2_soc.mall_allocated_for_dcn_mbytes = (double)(dcn32_calc_num_avail_chans_for_mall(dc,
+			dc->ctx->dc_bios->vram_info.num_chans) * dc->caps.mall_size_per_mem_channel);
 	}
 
+	if (dc->ctx->dc_bios->vram_info.dram_channel_width_bytes)
+		dcn3_2_soc.dram_channel_width_bytes = dc->ctx->dc_bios->vram_info.dram_channel_width_bytes;
+
 	/* DML DSC delay factor workaround */
 	dcn3_2_ip.dsc_delay_factor_wa = dc->debug.dsc_delay_factor_wa_x1000 / 1000.0;
 
@@ -2614,7 +2612,7 @@ void dcn32_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_pa
 	dc->dml.soc.dispclk_dppclk_vco_speed_mhz = dc->clk_mgr->dentist_vco_freq_khz / 1000.0;
 
 	/* Overrides Clock levelsfrom CLK Mgr table entries as reported by PM FW */
-	if ((!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) && (bw_params->clk_table.entries[0].memclk_mhz)) {
+	if (bw_params->clk_table.entries[0].memclk_mhz) {
 		if (dc->debug.use_legacy_soc_bb_mechanism) {
 			unsigned int i = 0, j = 0, num_states = 0;
 
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
index 342a1bcb4927..ffd7c3c1b142 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
@@ -471,80 +471,78 @@ static void dcn321_get_optimal_dcfclk_fclk_for_uclk(unsigned int uclk_mts,
 void dcn321_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_params)
 {
 	dc_assert_fp_enabled();
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		/* Overrides from dc->config options */
-		dcn3_21_ip.clamp_min_dcfclk = dc->config.clamp_min_dcfclk;
-
-		/* Override from passed dc->bb_overrides if available*/
-		if ((int)(dcn3_21_soc.sr_exit_time_us * 1000) != dc->bb_overrides.sr_exit_time_ns
-				&& dc->bb_overrides.sr_exit_time_ns) {
-			dcn3_21_soc.sr_exit_time_us = dc->bb_overrides.sr_exit_time_ns / 1000.0;
-		}
+	/* Overrides from dc->config options */
+	dcn3_21_ip.clamp_min_dcfclk = dc->config.clamp_min_dcfclk;
 
-		if ((int)(dcn3_21_soc.sr_enter_plus_exit_time_us * 1000)
-				!= dc->bb_overrides.sr_enter_plus_exit_time_ns
-				&& dc->bb_overrides.sr_enter_plus_exit_time_ns) {
-			dcn3_21_soc.sr_enter_plus_exit_time_us =
-				dc->bb_overrides.sr_enter_plus_exit_time_ns / 1000.0;
-		}
+	/* Override from passed dc->bb_overrides if available*/
+	if ((int)(dcn3_21_soc.sr_exit_time_us * 1000) != dc->bb_overrides.sr_exit_time_ns
+			&& dc->bb_overrides.sr_exit_time_ns) {
+		dcn3_21_soc.sr_exit_time_us = dc->bb_overrides.sr_exit_time_ns / 1000.0;
+	}
 
-		if ((int)(dcn3_21_soc.urgent_latency_us * 1000) != dc->bb_overrides.urgent_latency_ns
-			&& dc->bb_overrides.urgent_latency_ns) {
-			dcn3_21_soc.urgent_latency_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
-			dcn3_21_soc.urgent_latency_pixel_data_only_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
-		}
+	if ((int)(dcn3_21_soc.sr_enter_plus_exit_time_us * 1000)
+			!= dc->bb_overrides.sr_enter_plus_exit_time_ns
+			&& dc->bb_overrides.sr_enter_plus_exit_time_ns) {
+		dcn3_21_soc.sr_enter_plus_exit_time_us =
+			dc->bb_overrides.sr_enter_plus_exit_time_ns / 1000.0;
+	}
 
-		if ((int)(dcn3_21_soc.dram_clock_change_latency_us * 1000)
-				!= dc->bb_overrides.dram_clock_change_latency_ns
-				&& dc->bb_overrides.dram_clock_change_latency_ns) {
-			dcn3_21_soc.dram_clock_change_latency_us =
-				dc->bb_overrides.dram_clock_change_latency_ns / 1000.0;
-		}
+	if ((int)(dcn3_21_soc.urgent_latency_us * 1000) != dc->bb_overrides.urgent_latency_ns
+		&& dc->bb_overrides.urgent_latency_ns) {
+		dcn3_21_soc.urgent_latency_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
+		dcn3_21_soc.urgent_latency_pixel_data_only_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
+	}
 
-		if ((int)(dcn3_21_soc.fclk_change_latency_us * 1000)
-				!= dc->bb_overrides.fclk_clock_change_latency_ns
-				&& dc->bb_overrides.fclk_clock_change_latency_ns) {
-			dcn3_21_soc.fclk_change_latency_us =
-				dc->bb_overrides.fclk_clock_change_latency_ns / 1000;
-		}
+	if ((int)(dcn3_21_soc.dram_clock_change_latency_us * 1000)
+			!= dc->bb_overrides.dram_clock_change_latency_ns
+			&& dc->bb_overrides.dram_clock_change_latency_ns) {
+		dcn3_21_soc.dram_clock_change_latency_us =
+			dc->bb_overrides.dram_clock_change_latency_ns / 1000.0;
+	}
 
-		if ((int)(dcn3_21_soc.dummy_pstate_latency_us * 1000)
-				!= dc->bb_overrides.dummy_clock_change_latency_ns
-				&& dc->bb_overrides.dummy_clock_change_latency_ns) {
-			dcn3_21_soc.dummy_pstate_latency_us =
-				dc->bb_overrides.dummy_clock_change_latency_ns / 1000.0;
-		}
+	if ((int)(dcn3_21_soc.fclk_change_latency_us * 1000)
+			!= dc->bb_overrides.fclk_clock_change_latency_ns
+			&& dc->bb_overrides.fclk_clock_change_latency_ns) {
+		dcn3_21_soc.fclk_change_latency_us =
+			dc->bb_overrides.fclk_clock_change_latency_ns / 1000;
+	}
 
-		/* Override from VBIOS if VBIOS bb_info available */
-		if (dc->ctx->dc_bios->funcs->get_soc_bb_info) {
-			struct bp_soc_bb_info bb_info = {0};
+	if ((int)(dcn3_21_soc.dummy_pstate_latency_us * 1000)
+			!= dc->bb_overrides.dummy_clock_change_latency_ns
+			&& dc->bb_overrides.dummy_clock_change_latency_ns) {
+		dcn3_21_soc.dummy_pstate_latency_us =
+			dc->bb_overrides.dummy_clock_change_latency_ns / 1000.0;
+	}
 
-			if (dc->ctx->dc_bios->funcs->get_soc_bb_info(dc->ctx->dc_bios, &bb_info) == BP_RESULT_OK) {
-				if (bb_info.dram_clock_change_latency_100ns > 0)
-					dcn3_21_soc.dram_clock_change_latency_us =
-						bb_info.dram_clock_change_latency_100ns * 10;
+	/* Override from VBIOS if VBIOS bb_info available */
+	if (dc->ctx->dc_bios->funcs->get_soc_bb_info) {
+		struct bp_soc_bb_info bb_info = {0};
 
-				if (bb_info.dram_sr_enter_exit_latency_100ns > 0)
-					dcn3_21_soc.sr_enter_plus_exit_time_us =
-						bb_info.dram_sr_enter_exit_latency_100ns * 10;
+		if (dc->ctx->dc_bios->funcs->get_soc_bb_info(dc->ctx->dc_bios, &bb_info) == BP_RESULT_OK) {
+			if (bb_info.dram_clock_change_latency_100ns > 0)
+				dcn3_21_soc.dram_clock_change_latency_us =
+					bb_info.dram_clock_change_latency_100ns * 10;
 
-				if (bb_info.dram_sr_exit_latency_100ns > 0)
-					dcn3_21_soc.sr_exit_time_us =
-						bb_info.dram_sr_exit_latency_100ns * 10;
-			}
-		}
+			if (bb_info.dram_sr_enter_exit_latency_100ns > 0)
+				dcn3_21_soc.sr_enter_plus_exit_time_us =
+					bb_info.dram_sr_enter_exit_latency_100ns * 10;
 
-		/* Override from VBIOS for num_chan */
-		if (dc->ctx->dc_bios->vram_info.num_chans) {
-			dcn3_21_soc.num_chans = dc->ctx->dc_bios->vram_info.num_chans;
-			dcn3_21_soc.mall_allocated_for_dcn_mbytes = (double)(dcn32_calc_num_avail_chans_for_mall(dc,
-				dc->ctx->dc_bios->vram_info.num_chans) * dc->caps.mall_size_per_mem_channel);
+			if (bb_info.dram_sr_exit_latency_100ns > 0)
+				dcn3_21_soc.sr_exit_time_us =
+					bb_info.dram_sr_exit_latency_100ns * 10;
 		}
+	}
 
-		if (dc->ctx->dc_bios->vram_info.dram_channel_width_bytes)
-			dcn3_21_soc.dram_channel_width_bytes = dc->ctx->dc_bios->vram_info.dram_channel_width_bytes;
+	/* Override from VBIOS for num_chan */
+	if (dc->ctx->dc_bios->vram_info.num_chans) {
+		dcn3_21_soc.num_chans = dc->ctx->dc_bios->vram_info.num_chans;
+		dcn3_21_soc.mall_allocated_for_dcn_mbytes = (double)(dcn32_calc_num_avail_chans_for_mall(dc,
+			dc->ctx->dc_bios->vram_info.num_chans) * dc->caps.mall_size_per_mem_channel);
 	}
 
+	if (dc->ctx->dc_bios->vram_info.dram_channel_width_bytes)
+		dcn3_21_soc.dram_channel_width_bytes = dc->ctx->dc_bios->vram_info.dram_channel_width_bytes;
+
 	/* DML DSC delay factor workaround */
 	dcn3_21_ip.dsc_delay_factor_wa = dc->debug.dsc_delay_factor_wa_x1000 / 1000.0;
 
@@ -555,7 +553,6 @@ void dcn321_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_p
 	dc->dml.soc.dispclk_dppclk_vco_speed_mhz = dc->clk_mgr->dentist_vco_freq_khz / 1000.0;
 
 	/* Overrides Clock levelsfrom CLK Mgr table entries as reported by PM FW */
-	if ((!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) && (bw_params->clk_table.entries[0].memclk_mhz)) {
 		if (dc->debug.use_legacy_soc_bb_mechanism) {
 			unsigned int i = 0, j = 0, num_states = 0;
 
@@ -699,6 +696,5 @@ void dcn321_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_p
 		dml_init_instance(&dc->dml, &dcn3_21_soc, &dcn3_21_ip, DML_PROJECT_DCN32);
 		if (dc->current_state)
 			dml_init_instance(&dc->current_state->bw_ctx.dml, &dcn3_21_soc, &dcn3_21_ip, DML_PROJECT_DCN32);
-	}
 }
 
diff --git a/drivers/gpu/drm/amd/display/dc/dml/display_mode_lib.c b/drivers/gpu/drm/amd/display/dc/dml/display_mode_lib.c
index bdf3ac6cadd5..da0cfbb071e6 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/display_mode_lib.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/display_mode_lib.c
@@ -113,7 +113,6 @@ void dml_init_instance(struct display_mode_lib *lib,
 		lib->funcs = dml30_funcs;
 		break;
 	case DML_PROJECT_DCN31:
-	case DML_PROJECT_DCN31_FPGA:
 	case DML_PROJECT_DCN315:
 		lib->funcs = dml31_funcs;
 		break;
diff --git a/drivers/gpu/drm/amd/display/dc/dml/display_mode_lib.h b/drivers/gpu/drm/amd/display/dc/dml/display_mode_lib.h
index a9d49ef58fb5..5edf69fa40d1 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/display_mode_lib.h
+++ b/drivers/gpu/drm/amd/display/dc/dml/display_mode_lib.h
@@ -41,7 +41,6 @@ enum dml_project {
 	DML_PROJECT_DCN30,
 	DML_PROJECT_DCN31,
 	DML_PROJECT_DCN315,
-	DML_PROJECT_DCN31_FPGA,
 	DML_PROJECT_DCN314,
 	DML_PROJECT_DCN32,
 };
diff --git a/drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_hpo_dp.c b/drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_hpo_dp.c
index edd7d026a762..586fe25c1702 100644
--- a/drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_hpo_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_hpo_dp.c
@@ -28,24 +28,6 @@
 #include "dccg.h"
 #include "clk_mgr.h"
 
-static enum phyd32clk_clock_source get_phyd32clk_src(struct dc_link *link)
-{
-	switch (link->link_enc->transmitter) {
-	case TRANSMITTER_UNIPHY_A:
-		return PHYD32CLKA;
-	case TRANSMITTER_UNIPHY_B:
-		return PHYD32CLKB;
-	case TRANSMITTER_UNIPHY_C:
-		return PHYD32CLKC;
-	case TRANSMITTER_UNIPHY_D:
-		return PHYD32CLKD;
-	case TRANSMITTER_UNIPHY_E:
-		return PHYD32CLKE;
-	default:
-		return PHYD32CLKA;
-	}
-}
-
 static void set_hpo_dp_throttled_vcp_size(struct pipe_ctx *pipe_ctx,
 		struct fixed31_32 throttled_vcp_size)
 {
@@ -120,81 +102,26 @@ static void setup_hpo_dp_stream_attribute(struct pipe_ctx *pipe_ctx)
 			DPCD_SOURCE_SEQ_AFTER_DP_STREAM_ATTR);
 }
 
-static void enable_hpo_dp_fpga_link_output(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)
-{
-	const struct dc *dc = link->dc;
-	enum phyd32clk_clock_source phyd32clk = get_phyd32clk_src(link);
-	int phyd32clk_freq_khz = link_settings->link_rate == LINK_RATE_UHBR10 ? 312500 :
-			link_settings->link_rate == LINK_RATE_UHBR13_5 ? 412875 :
-			link_settings->link_rate == LINK_RATE_UHBR20 ? 625000 : 0;
-
-	dm_set_phyd32clk(dc->ctx, phyd32clk_freq_khz);
-	dc->res_pool->dccg->funcs->set_physymclk(
-			dc->res_pool->dccg,
-			link->link_enc_hw_inst,
-			PHYSYMCLK_FORCE_SRC_PHYD32CLK,
-			true);
-	dc->res_pool->dccg->funcs->enable_symclk32_le(
-			dc->res_pool->dccg,
-			link_res->hpo_dp_link_enc->inst,
-			phyd32clk);
-	link_res->hpo_dp_link_enc->funcs->link_enable(
-			link_res->hpo_dp_link_enc,
-			link_settings->lane_count);
-
-}
-
 static void enable_hpo_dp_link_output(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)
 {
-	if (IS_FPGA_MAXIMUS_DC(link->dc->ctx->dce_environment))
-		enable_hpo_dp_fpga_link_output(link, link_res, signal,
-				clock_source, link_settings);
-	else
-		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->hpd_source);
-}
-
-
-static void disable_hpo_dp_fpga_link_output(struct dc_link *link,
-		const struct link_resource *link_res,
-		enum signal_type signal)
-{
-	const struct dc *dc = link->dc;
-
-	link_res->hpo_dp_link_enc->funcs->link_disable(link_res->hpo_dp_link_enc);
-	dc->res_pool->dccg->funcs->disable_symclk32_le(
-			dc->res_pool->dccg,
-			link_res->hpo_dp_link_enc->inst);
-	dc->res_pool->dccg->funcs->set_physymclk(
-			dc->res_pool->dccg,
-			link->link_enc_hw_inst,
-			PHYSYMCLK_FORCE_SRC_SYMCLK,
-			false);
-	dm_set_phyd32clk(dc->ctx, 0);
+	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->hpd_source);
 }
 
 static void disable_hpo_dp_link_output(struct dc_link *link,
 		const struct link_resource *link_res,
 		enum signal_type signal)
 {
-	if (IS_FPGA_MAXIMUS_DC(link->dc->ctx->dce_environment)) {
-		disable_hpo_dp_fpga_link_output(link, link_res, signal);
-	} else {
 		link_res->hpo_dp_link_enc->funcs->link_disable(link_res->hpo_dp_link_enc);
 		link_res->hpo_dp_link_enc->funcs->disable_link_phy(
 				link_res->hpo_dp_link_enc, signal);
-	}
 }
 
 static void set_hpo_dp_link_test_pattern(struct dc_link *link,
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 2267fb097830..2963267fe74a 100644
--- a/drivers/gpu/drm/amd/display/dc/link/link_dpms.c
+++ b/drivers/gpu/drm/amd/display/dc/link/link_dpms.c
@@ -765,7 +765,7 @@ static bool dp_set_dsc_on_rx(struct pipe_ctx *pipe_ctx, bool enable)
 	struct dc_stream_state *stream = pipe_ctx->stream;
 	bool result = false;
 
-	if (dc_is_virtual_signal(stream->signal) || IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment))
+	if (dc_is_virtual_signal(stream->signal))
 		result = true;
 	else
 		result = dm_helpers_dp_write_dsc_enable(dc->ctx, stream, enable);
@@ -778,7 +778,6 @@ static bool dp_set_dsc_on_rx(struct pipe_ctx *pipe_ctx, bool enable)
 void link_set_dsc_on_stream(struct pipe_ctx *pipe_ctx, bool enable)
 {
 	struct display_stream_compressor *dsc = pipe_ctx->stream_res.dsc;
-	struct dc *dc = pipe_ctx->stream->ctx->dc;
 	struct dc_stream_state *stream = pipe_ctx->stream;
 	struct pipe_ctx *odm_pipe;
 	int opp_cnt = 1;
@@ -816,8 +815,7 @@ void link_set_dsc_on_stream(struct pipe_ctx *pipe_ctx, bool enable)
 		optc_dsc_mode = dsc_optc_cfg.is_pixel_format_444 ? OPTC_DSC_ENABLED_444 : OPTC_DSC_ENABLED_NATIVE_SUBSAMPLED;
 
 		/* Enable DSC in encoder */
-		if (dc_is_dp_signal(stream->signal) && !IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)
-				&& !dp_is_128b_132b_signal(pipe_ctx)) {
+		if (dc_is_dp_signal(stream->signal) && !dp_is_128b_132b_signal(pipe_ctx)) {
 			DC_LOG_DSC("Setting stream encoder DSC config for engine %d:", (int)pipe_ctx->stream_res.stream_enc->id);
 			dsc_optc_config_log(dsc, &dsc_optc_cfg);
 			pipe_ctx->stream_res.stream_enc->funcs->dp_set_dsc_config(pipe_ctx->stream_res.stream_enc,
@@ -849,7 +847,7 @@ void link_set_dsc_on_stream(struct pipe_ctx *pipe_ctx, bool enable)
 										false,
 										NULL,
 										true);
-			else if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
+			else {
 				pipe_ctx->stream_res.stream_enc->funcs->dp_set_dsc_config(
 						pipe_ctx->stream_res.stream_enc,
 						OPTC_DSC_DISABLED, 0, 0);
@@ -2271,8 +2269,7 @@ void link_set_dpms_off(struct pipe_ctx *pipe_ctx)
 		}
 	}
 
-	if (!IS_DIAG_DC(dc->ctx->dce_environment) &&
-			dc_is_virtual_signal(pipe_ctx->stream->signal))
+	if (dc_is_virtual_signal(pipe_ctx->stream->signal))
 		return;
 
 	if (!pipe_ctx->stream->sink->edid_caps.panel_patch.skip_avmute) {
@@ -2358,6 +2355,8 @@ void link_set_dpms_on(
 	enum otg_out_mux_dest otg_out_dest = OUT_MUX_DIO;
 	struct vpg *vpg = pipe_ctx->stream_res.stream_enc->vpg;
 	const struct link_hwss *link_hwss = get_link_hwss(link, &pipe_ctx->link_res);
+	bool apply_edp_fast_boot_optimization =
+		pipe_ctx->stream->apply_edp_fast_boot_optimization;
 
 	ASSERT(is_master_pipe_for_link(link, pipe_ctx));
 
@@ -2375,9 +2374,8 @@ void link_set_dpms_on(
 		}
 	}
 
-	if (!IS_DIAG_DC(dc->ctx->dce_environment) &&
-			dc_is_virtual_signal(pipe_ctx->stream->signal))
-		return;
+		if (dc_is_virtual_signal(pipe_ctx->stream->signal))
+			return;
 
 	link_enc = link_enc_cfg_get_link_enc(link);
 	ASSERT(link_enc);
@@ -2402,138 +2400,126 @@ void link_set_dpms_on(
 
 	link_hwss->setup_stream_attribute(pipe_ctx);
 
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		bool apply_edp_fast_boot_optimization =
-			pipe_ctx->stream->apply_edp_fast_boot_optimization;
-
-		pipe_ctx->stream->apply_edp_fast_boot_optimization = false;
+	pipe_ctx->stream->apply_edp_fast_boot_optimization = false;
 
-		// Enable VPG before building infoframe
-		if (vpg && vpg->funcs->vpg_poweron)
-			vpg->funcs->vpg_poweron(vpg);
+	// Enable VPG before building infoframe
+	if (vpg && vpg->funcs->vpg_poweron)
+		vpg->funcs->vpg_poweron(vpg);
 
-		resource_build_info_frame(pipe_ctx);
-		dc->hwss.update_info_frame(pipe_ctx);
+	resource_build_info_frame(pipe_ctx);
+	dc->hwss.update_info_frame(pipe_ctx);
 
-		if (dc_is_dp_signal(pipe_ctx->stream->signal))
-			dp_trace_source_sequence(link, DPCD_SOURCE_SEQ_AFTER_UPDATE_INFO_FRAME);
+	if (dc_is_dp_signal(pipe_ctx->stream->signal))
+		dp_trace_source_sequence(link, DPCD_SOURCE_SEQ_AFTER_UPDATE_INFO_FRAME);
 
-		/* Do not touch link on seamless boot optimization. */
-		if (pipe_ctx->stream->apply_seamless_boot_optimization) {
-			pipe_ctx->stream->dpms_off = false;
+	/* Do not touch link on seamless boot optimization. */
+	if (pipe_ctx->stream->apply_seamless_boot_optimization) {
+		pipe_ctx->stream->dpms_off = false;
 
-			/* Still enable stream features & audio on seamless boot for DP external displays */
-			if (pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT) {
-				enable_stream_features(pipe_ctx);
-				dc->hwss.enable_audio_stream(pipe_ctx);
-			}
-
-			update_psp_stream_config(pipe_ctx, false);
-			return;
-		}
-
-		/* eDP lit up by bios already, no need to enable again. */
-		if (pipe_ctx->stream->signal == SIGNAL_TYPE_EDP &&
-					apply_edp_fast_boot_optimization &&
-					!pipe_ctx->stream->timing.flags.DSC &&
-					!pipe_ctx->next_odm_pipe) {
-			pipe_ctx->stream->dpms_off = false;
-			update_psp_stream_config(pipe_ctx, false);
-			return;
+		/* Still enable stream features & audio on seamless boot for DP external displays */
+		if (pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT) {
+			enable_stream_features(pipe_ctx);
+			dc->hwss.enable_audio_stream(pipe_ctx);
 		}
 
-		if (pipe_ctx->stream->dpms_off)
-			return;
+		update_psp_stream_config(pipe_ctx, false);
+		return;
+	}
 
-		/* Have to setup DSC before DIG FE and BE are connected (which happens before the
-		 * link training). This is to make sure the bandwidth sent to DIG BE won't be
-		 * bigger than what the link and/or DIG BE can handle. VBID[6]/CompressedStream_flag
-		 * will be automatically set at a later time when the video is enabled
-		 * (DP_VID_STREAM_EN = 1).
-		 */
-		if (pipe_ctx->stream->timing.flags.DSC) {
-			if (dc_is_dp_signal(pipe_ctx->stream->signal) ||
-				dc_is_virtual_signal(pipe_ctx->stream->signal))
-			link_set_dsc_enable(pipe_ctx, true);
+	/* eDP lit up by bios already, no need to enable again. */
+	if (pipe_ctx->stream->signal == SIGNAL_TYPE_EDP &&
+				apply_edp_fast_boot_optimization &&
+				!pipe_ctx->stream->timing.flags.DSC &&
+				!pipe_ctx->next_odm_pipe) {
+		pipe_ctx->stream->dpms_off = false;
+		update_psp_stream_config(pipe_ctx, false);
+		return;
+	}
 
-		}
+	if (pipe_ctx->stream->dpms_off)
+		return;
 
-		status = enable_link(state, pipe_ctx);
+	/* Have to setup DSC before DIG FE and BE are connected (which happens before the
+	 * link training). This is to make sure the bandwidth sent to DIG BE won't be
+	 * bigger than what the link and/or DIG BE can handle. VBID[6]/CompressedStream_flag
+	 * will be automatically set at a later time when the video is enabled
+	 * (DP_VID_STREAM_EN = 1).
+	 */
+	if (pipe_ctx->stream->timing.flags.DSC) {
+		if (dc_is_dp_signal(pipe_ctx->stream->signal) ||
+			dc_is_virtual_signal(pipe_ctx->stream->signal))
+		link_set_dsc_enable(pipe_ctx, true);
 
-		if (status != DC_OK) {
-			DC_LOG_WARNING("enabling link %u failed: %d\n",
-			pipe_ctx->stream->link->link_index,
-			status);
+	}
 
-			/* Abort stream enable *unless* the failure was due to
-			 * DP link training - some DP monitors will recover and
-			 * show the stream anyway. But MST displays can't proceed
-			 * without link training.
-			 */
-			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->link_res,
-							pipe_ctx->stream->signal);
-				BREAK_TO_DEBUGGER();
-				return;
-			}
-		}
+	status = enable_link(state, pipe_ctx);
 
-		/* turn off otg test pattern if enable */
-		if (pipe_ctx->stream_res.tg->funcs->set_test_pattern)
-			pipe_ctx->stream_res.tg->funcs->set_test_pattern(pipe_ctx->stream_res.tg,
-					CONTROLLER_DP_TEST_PATTERN_VIDEOMODE,
-					COLOR_DEPTH_UNDEFINED);
+	if (status != DC_OK) {
+		DC_LOG_WARNING("enabling link %u failed: %d\n",
+		pipe_ctx->stream->link->link_index,
+		status);
 
-		/* This second call is needed to reconfigure the DIG
-		 * as a workaround for the incorrect value being applied
-		 * from transmitter control.
+		/* Abort stream enable *unless* the failure was due to
+		 * DP link training - some DP monitors will recover and
+		 * show the stream anyway. But MST displays can't proceed
+		 * without link training.
 		 */
-		if (!(dc_is_virtual_signal(pipe_ctx->stream->signal) ||
-				dp_is_128b_132b_signal(pipe_ctx))) {
-				if (link_enc)
-					link_enc->funcs->setup(
-						link_enc,
+		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->link_res,
 						pipe_ctx->stream->signal);
-			}
+			BREAK_TO_DEBUGGER();
+			return;
+		}
+	}
 
-		dc->hwss.enable_stream(pipe_ctx);
+	/* turn off otg test pattern if enable */
+	if (pipe_ctx->stream_res.tg->funcs->set_test_pattern)
+		pipe_ctx->stream_res.tg->funcs->set_test_pattern(pipe_ctx->stream_res.tg,
+				CONTROLLER_DP_TEST_PATTERN_VIDEOMODE,
+				COLOR_DEPTH_UNDEFINED);
 
-		/* Set DPS PPS SDP (AKA "info frames") */
-		if (pipe_ctx->stream->timing.flags.DSC) {
-			if (dc_is_dp_signal(pipe_ctx->stream->signal) ||
-					dc_is_virtual_signal(pipe_ctx->stream->signal)) {
-				dp_set_dsc_on_rx(pipe_ctx, true);
-				link_set_dsc_pps_packet(pipe_ctx, true, true);
-			}
+	/* This second call is needed to reconfigure the DIG
+	 * as a workaround for the incorrect value being applied
+	 * from transmitter control.
+	 */
+	if (!(dc_is_virtual_signal(pipe_ctx->stream->signal) ||
+			dp_is_128b_132b_signal(pipe_ctx))) {
+			if (link_enc)
+				link_enc->funcs->setup(
+					link_enc,
+					pipe_ctx->stream->signal);
 		}
 
-		if (pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST)
-			allocate_mst_payload(pipe_ctx);
-		else if (pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT &&
-				dp_is_128b_132b_signal(pipe_ctx))
-			update_sst_payload(pipe_ctx, true);
+	dc->hwss.enable_stream(pipe_ctx);
+
+	/* Set DPS PPS SDP (AKA "info frames") */
+	if (pipe_ctx->stream->timing.flags.DSC) {
+		if (dc_is_dp_signal(pipe_ctx->stream->signal) ||
+				dc_is_virtual_signal(pipe_ctx->stream->signal)) {
+			dp_set_dsc_on_rx(pipe_ctx, true);
+			link_set_dsc_pps_packet(pipe_ctx, true, true);
+		}
+	}
 
-		dc->hwss.unblank_stream(pipe_ctx,
-			&pipe_ctx->stream->link->cur_link_settings);
+	if (pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST)
+		allocate_mst_payload(pipe_ctx);
+	else if (pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT &&
+			dp_is_128b_132b_signal(pipe_ctx))
+		update_sst_payload(pipe_ctx, true);
 
-		if (stream->sink_patches.delay_ignore_msa > 0)
-			msleep(stream->sink_patches.delay_ignore_msa);
+	dc->hwss.unblank_stream(pipe_ctx,
+		&pipe_ctx->stream->link->cur_link_settings);
 
-		if (dc_is_dp_signal(pipe_ctx->stream->signal))
-			enable_stream_features(pipe_ctx);
-		update_psp_stream_config(pipe_ctx, false);
+	if (stream->sink_patches.delay_ignore_msa > 0)
+		msleep(stream->sink_patches.delay_ignore_msa);
 
-		dc->hwss.enable_audio_stream(pipe_ctx);
+	if (dc_is_dp_signal(pipe_ctx->stream->signal))
+		enable_stream_features(pipe_ctx);
+	update_psp_stream_config(pipe_ctx, false);
 
-	} else { // if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment))
-		if (dp_is_128b_132b_signal(pipe_ctx))
-			dp_fpga_hpo_enable_link_and_stream(state, pipe_ctx);
-		if (dc_is_dp_signal(pipe_ctx->stream->signal) ||
-				dc_is_virtual_signal(pipe_ctx->stream->signal))
-			link_set_dsc_enable(pipe_ctx, true);
-	}
+	dc->hwss.enable_audio_stream(pipe_ctx);
 
 	if (dc_is_hdmi_signal(pipe_ctx->stream->signal)) {
 		set_avmute(pipe_ctx, false);
diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c
index f46864630506..3a5e80b57711 100644
--- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c
+++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c
@@ -326,8 +326,7 @@ bool dp_is_fec_supported(const struct dc_link *link)
 
 	return (dc_is_dp_signal(link->connector_signal) && link_enc &&
 			link_enc->features.fec_supported &&
-			link->dpcd_caps.fec_cap.bits.FEC_CAPABLE &&
-			!IS_FPGA_MAXIMUS_DC(link->ctx->dce_environment));
+			link->dpcd_caps.fec_cap.bits.FEC_CAPABLE);
 }
 
 bool dp_should_enable_fec(const struct dc_link *link)