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authorChiawen Huang <chiawen.huang@amd.com>2022-03-10 00:07:59 +0800
committerAlex Deucher <alexander.deucher@amd.com>2022-03-25 12:40:24 -0400
commit7d56a154e22ffb3613fdebf83ec34d5225a22993 (patch)
treef53025a36c52acd5eace55f0d76440da08abae3f /drivers/gpu/drm/amd/display
parent6bf528ec91fb96e186461215c8f76265c5a35250 (diff)
drm/amd/display: FEC check in timing validation
[Why] disable/enable leads FEC mismatch between hw/sw FEC state. [How] check FEC status to fastboot on/off. Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Chiawen Huang <chiawen.huang@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display')
-rw-r--r--drivers/gpu/drm/amd/display/dc/core/dc.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index f6e19efea756..75f9c97bebb0 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1496,6 +1496,10 @@ bool dc_validate_boot_timing(const struct dc *dc,
if (!link->link_enc->funcs->is_dig_enabled(link->link_enc))
return false;
+ /* Check for FEC status*/
+ if (link->link_enc->funcs->fec_is_active(link->link_enc))
+ return false;
+
enc_inst = link->link_enc->funcs->get_dig_frontend(link->link_enc);
if (enc_inst == ENGINE_ID_UNKNOWN)