[PATCH] drm/amd/display: Fix a test CalculatePrefetchSchedule()

[Christophe JAILLET]

It is likely Height was expected here, instead of Width.

Test the correct variable.

Fixes: 17529ea2acfa ("drm/amd/display: Optimizations for DML math")
Signed-off-by: Christophe JAILLET <christophe.jail...@wanadoo.fr>
---
 drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c 
b/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
index b7c2844d0cbe..f294f2f8c75b 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
@@ -810,7 +810,7 @@ static bool CalculatePrefetchSchedule(
                        *swath_width_chroma_ub = dml_ceil(SwathWidthY / 2 - 1, 
myPipe->BlockWidth256BytesC) + myPipe->BlockWidth256BytesC;
        } else {
                *swath_width_luma_ub = dml_ceil(SwathWidthY - 1, 
myPipe->BlockHeight256BytesY) + myPipe->BlockHeight256BytesY;
-               if (myPipe->BlockWidth256BytesC > 0)
+               if (myPipe->BlockHeight256BytesC > 0)
                        *swath_width_chroma_ub = dml_ceil(SwathWidthY / 2 - 1, 
myPipe->BlockHeight256BytesC) + myPipe->BlockHeight256BytesC;
        }
 
-- 
2.34.1