From bfee4a16ed047055a86b7dfc463aa90f0cdaaebe Mon Sep 17 00:00:00 2001
From: Sung Lee <sung.lee@amd.com>
Date: Wed, 29 Apr 2020 17:24:23 -0400
Subject: drm/amd/display: Do not fail if build scaling params fails
Git-commit: 65f9ace4acc1dbfc85e3cecd5aad0fb9ca165ef2
Patch-mainline: v5.9-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322

[WHY]
Failing validation when building scaling parameters causes corruption to
occur due to pipe splitting with smaller pixel widths than HW supports.
This needs to fail silently for now to hide the corruption until the
corruption itself can be fixed.

[HOW]
Do not fail validation if building scaling params fails.

Signed-off-by: Sung Lee <sung.lee@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index cef1aa938ab5..99925079a55d 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -2836,8 +2836,8 @@ bool dcn20_fast_validate_bw(
 					dcn20_split_stream_for_mpc(
 							&context->res_ctx, dc->res_pool,
 							pipe, hsplit_pipe);
-					if (!resource_build_scaling_params(pipe) || !resource_build_scaling_params(hsplit_pipe))
-						goto validate_fail;
+					resource_build_scaling_params(pipe);
+					resource_build_scaling_params(hsplit_pipe);
 				}
 				pipe_split_from[hsplit_pipe->pipe_idx] = pipe_idx;
 			}
-- 
2.29.2