drm/amd/display: update blank state on ODM changes

When we are dynamically adding new ODM slices, we didn't update
blank state, if the pipe used by new ODM slice is previously blanked,
we will continue outputting blank pixel data on that slice causing
right half of the screen showing blank image.

The previous fix was a temporary hack to directly update current state
when committing new state. This could potentially cause hw and sw
state synchronization issues and it is not permitted by dc commit
design.

Cc: [email protected]
Fixes: 7fbf451 ("drm/amd/display: Reinit DPG when exiting dynamic ODM")
Reviewed-by: Dillon Varone <[email protected]>
Acked-by: Hamza Mahfooz <[email protected]>
Signed-off-by: Wenjing Liu <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

Author: Wenjing Liu

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c

@@ -1106,29 +1106,6 @@ void dcn20_blank_pixel_data(
 			v_active,
 			offset);
 
-	if (!blank && dc->debug.enable_single_display_2to1_odm_policy) {
-		/* when exiting dynamic ODM need to reinit DPG state for unused pipes */
-		struct pipe_ctx *old_odm_pipe = dc->current_state->res_ctx.pipe_ctx[pipe_ctx->pipe_idx].next_odm_pipe;
-
-		odm_pipe = pipe_ctx->next_odm_pipe;
-
-		while (old_odm_pipe) {
-			if (!odm_pipe || old_odm_pipe->pipe_idx != odm_pipe->pipe_idx)
-				dc->hwss.set_disp_pattern_generator(dc,
-						old_odm_pipe,
-						CONTROLLER_DP_TEST_PATTERN_VIDEOMODE,
-						CONTROLLER_DP_COLOR_SPACE_UDEFINED,
-						COLOR_DEPTH_888,
-						NULL,
-						0,
-						0,
-						0);
-			old_odm_pipe = old_odm_pipe->next_odm_pipe;
-			if (odm_pipe)
-				odm_pipe = odm_pipe->next_odm_pipe;
-		}
-	}
-
 	if (!blank)
 		if (stream_res->abm) {
 			dc->hwss.set_pipe(pipe_ctx);
@@ -1722,11 +1699,16 @@ static void dcn20_program_pipe(
 		struct dc_state *context)
 {
 	struct dce_hwseq *hws = dc->hwseq;
-	/* Only need to unblank on top pipe */
 
-	if ((pipe_ctx->update_flags.bits.enable || pipe_ctx->stream->update_flags.bits.abm_level)
-			&& !pipe_ctx->top_pipe && !pipe_ctx->prev_odm_pipe)
-		hws->funcs.blank_pixel_data(dc, pipe_ctx, !pipe_ctx->plane_state->visible);
+	/* Only need to unblank on top pipe */
+	if (resource_is_pipe_type(pipe_ctx, OTG_MASTER)) {
+		if (pipe_ctx->update_flags.bits.enable ||
+				pipe_ctx->update_flags.bits.odm ||
+				pipe_ctx->stream->update_flags.bits.abm_level)
+			hws->funcs.blank_pixel_data(dc, pipe_ctx,
+					!pipe_ctx->plane_state ||
+					!pipe_ctx->plane_state->visible);
+	}
 
 	/* Only update TG on top pipe */
 	if (pipe_ctx->update_flags.bits.global_sync && !pipe_ctx->top_pipe