drm/amd/display: fix init_adj offset for cositing in SPL

[Why & How]
init_adj offset is applied when cosited not interstitial
Adjust cositing offset in SPL

Reviewed-by: Jun Lei <[email protected]>
Signed-off-by: Samson Tam <[email protected]>
Signed-off-by: Roman Li <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

Author: Samson Tam

drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c

@@ -737,7 +737,7 @@ static const struct dc_debug_options debug_defaults_drv = {
 			.enable_stall_recovery = true,
 		}
 	},
-	.force_cositing = CHROMA_COSITING_TOPLEFT + 1,
+	.force_cositing = CHROMA_COSITING_NONE + 1,
 };
 
 static struct dce_aux *dcn401_aux_engine_create(

drivers/gpu/drm/amd/display/dc/spl/dc_spl.c

@@ -633,20 +633,21 @@ static void spl_calculate_inits_and_viewports(struct spl_in *spl_in,
 
 		switch (spl_in->basic_in.cositing) {
 
-		case CHROMA_COSITING_LEFT:
-			init_adj_h = spl_fixpt_zero;
+		case CHROMA_COSITING_TOPLEFT:
+			init_adj_h = spl_fixpt_from_fraction(sign, 4);
 			init_adj_v = spl_fixpt_from_fraction(sign, 4);
 			break;
-		case CHROMA_COSITING_NONE:
+		case CHROMA_COSITING_LEFT:
 			init_adj_h = spl_fixpt_from_fraction(sign, 4);
-			init_adj_v = spl_fixpt_from_fraction(sign, 4);
+			init_adj_v = spl_fixpt_zero;
 			break;
-		case CHROMA_COSITING_TOPLEFT:
+		case CHROMA_COSITING_NONE:
 		default:
 			init_adj_h = spl_fixpt_zero;
 			init_adj_v = spl_fixpt_zero;
 			break;
 		}
+
 	}
 
 	spl_calculate_init_and_vp(