drm/amd/display: stop adjusting scl taps when scl ratio is one on dcn

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_transform.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_transform.c
index 6098058..d9815a9 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_transform.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_transform.c
@@ -851,14 +851,16 @@ static bool transform_get_optimal_number_of_taps(
        else
                scl_data->taps.h_taps_c = in_taps->h_taps_c;
 
-       if (IDENTITY_RATIO(scl_data->ratios.horz))
-               scl_data->taps.h_taps = 1;
-       if (IDENTITY_RATIO(scl_data->ratios.vert))
-               scl_data->taps.v_taps = 1;
-       if (IDENTITY_RATIO(scl_data->ratios.horz_c))
-               scl_data->taps.h_taps_c = 1;
-       if (IDENTITY_RATIO(scl_data->ratios.vert_c))
-               scl_data->taps.v_taps_c = 1;
+       if (!xfm->ctx->dc->debug.always_scale) {
+               if (IDENTITY_RATIO(scl_data->ratios.horz))
+                       scl_data->taps.h_taps = 1;
+               if (IDENTITY_RATIO(scl_data->ratios.vert))
+                       scl_data->taps.v_taps = 1;
+               if (IDENTITY_RATIO(scl_data->ratios.horz_c))
+                       scl_data->taps.h_taps_c = 1;
+               if (IDENTITY_RATIO(scl_data->ratios.vert_c))
+                       scl_data->taps.v_taps_c = 1;
+       }
 
        return true;
 }