1 files changed, 4 insertions, 34 deletions

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..6e11d2b701f8 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
@@ -276,8 +276,8 @@ static void program_cursor_attributes(
 		}
 
 		dc->hwss.set_cursor_attribute(pipe_ctx);
-
-		dc_send_update_cursor_info_to_dmu(pipe_ctx, i);
+		if (dc->ctx->dmub_srv)
+			dc_send_update_cursor_info_to_dmu(pipe_ctx, i);
 		if (dc->hwss.set_cursor_sdr_white_level)
 			dc->hwss.set_cursor_sdr_white_level(pipe_ctx);
 	}
@@ -396,8 +396,8 @@ static void program_cursor_position(
 		}
 
 		dc->hwss.set_cursor_position(pipe_ctx);
-
-		dc_send_update_cursor_info_to_dmu(pipe_ctx, i);
+		if (dc->ctx->dmub_srv)
+			dc_send_update_cursor_info_to_dmu(pipe_ctx, i);
 	}
 
 	if (pipe_to_program)
@@ -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;
 }