1 files changed, 13 insertions, 41 deletions

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);