diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_dcn4_calcs.c b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_dcn4_calcs.c
index 601320b1be817..ecfa3c898e09d 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_dcn4_calcs.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_dcn4_calcs.c
@@ -579,8 +579,8 @@ static void CalculateBytePerPixelAndBlockSizes(
 {
 	*BytePerPixelDETY = 0;
 	*BytePerPixelDETC = 0;
-	*BytePerPixelY = 0;
-	*BytePerPixelC = 0;
+	*BytePerPixelY = 1;
+	*BytePerPixelC = 1;
 
 	if (SourcePixelFormat == dml2_444_64) {
 		*BytePerPixelDETY = 8;