drm/amd/display: add DCN30 support FEC init

[Why]
FEC init used on DCN30.

[How]
Check fec active when HW init.

Co-authored-by: Jingwen Zhu <Jingwen.Zhu@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com>
Signed-off-by: Jingwen Zhu <Jingwen.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c
index f61ec87..782b8db 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c
@@ -535,8 +535,12 @@ void dcn30_init_hw(struct dc *dc)
 
                /* Check for enabled DIG to identify enabled display */
                if (link->link_enc->funcs->is_dig_enabled &&
-                       link->link_enc->funcs->is_dig_enabled(link->link_enc))
+                       link->link_enc->funcs->is_dig_enabled(link->link_enc)) {
                        link->link_status.link_active = true;
+                       if (link->link_enc->funcs->fec_is_active &&
+                                       link->link_enc->funcs->fec_is_active(link->link_enc))
+                               link->fec_state = dc_link_fec_enabled;
+               }
        }
 
        /* Power gate DSCs */