[PATCH] drm/amdgpu/display: fix build when CONFIG_DRM_AMD_DC_DCN is not set

[Alex Deucher]

Need to guard some things with CONFIG_DRM_AMD_DC_DCN.

Fixes: 0c865d1d817b77 ("drm/amd/display: fix link training regression for 1 or 
2 lane")
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c 
b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index a9e940bd7e83..49a4d8e85bf8 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -840,9 +840,11 @@ static void override_lane_settings(const struct 
link_training_settings *lt_setti
        uint32_t lane;
 
        if (lt_settings->voltage_swing == NULL &&
-                       lt_settings->pre_emphasis == NULL &&
-                       lt_settings->ffe_preset == NULL &&
-                       lt_settings->post_cursor2 == NULL)
+           lt_settings->pre_emphasis == NULL &&
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+           lt_settings->ffe_preset == NULL &&
+#endif
+           lt_settings->post_cursor2 == NULL)
 
                return;
 
@@ -853,9 +855,10 @@ static void override_lane_settings(const struct 
link_training_settings *lt_setti
                        lane_settings[lane].PRE_EMPHASIS = 
*lt_settings->pre_emphasis;
                if (lt_settings->post_cursor2)
                        lane_settings[lane].POST_CURSOR2 = 
*lt_settings->post_cursor2;
-
+#if defined(CONFIG_DRM_AMD_DC_DCN)
                if (lt_settings->ffe_preset)
                        lane_settings[lane].FFE_PRESET = 
*lt_settings->ffe_preset;
+#endif
        }
 }
 
-- 
2.31.1