[PATCH 5.14 050/125] drm/amd/display: Limit display scaling to up to true 4k for DCN 3.1

[Greg Kroah-Hartman]

From: Nikola Cornij <nikola.cornij@xxxxxxx>

commit c21b105380cf86e829c68586ca1315cfc253ad8c upstream.

[why]
The requirement is that image width up to 4096 shall be supported

Reviewed-by: Aric Cyr <Aric.Cyr@xxxxxxx>
Acked-by: Agustin Gutierrez Sanchez <agustin.gutierrez@xxxxxxx>
Signed-off-by: Nikola Cornij <nikola.cornij@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
@@ -928,7 +928,7 @@ static const struct dc_debug_options deb
 	.disable_dcc = DCC_ENABLE,
 	.vsr_support = true,
 	.performance_trace = false,
-	.max_downscale_src_width = 3840,/*upto 4K*/
+	.max_downscale_src_width = 4096,/*upto true 4K*/
 	.disable_pplib_wm_range = false,
 	.scl_reset_length10 = true,
 	.sanity_checks = false,