diff options
| author | Saidireddy Yenugu <Saidireddy.Yenugu@amd.com> | 2026-01-21 18:57:25 +0530 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-02-19 12:16:11 -0500 |
| commit | d1d51519bc3bf4ae316203427d733a002d947cd0 (patch) | |
| tree | 6d4830958bcb58f7869c09614294d474cc23bd36 /drivers/gpu | |
| parent | d637dd7288814bc4dfbc851780f7a3eada1e13d3 (diff) | |
drm/amd/display: Skip eDP detection when no sink
[Why & How]
When there is no eDP panel connected and during
s0ix resume, unnecessary eDP power sequence and
HPD happening, resulting in ~2 seconds delay.
Fixed the issue by avoiding link detect for eDP
connection with no sink in dm_resume.
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Saidireddy Yenugu <Saidireddy.Yenugu@amd.com>
Co-developed-by: ThummarDip Kishorbhai <ThummarDip.Kishorbhai@amd.com>
Signed-off-by: ThummarDip Kishorbhai <ThummarDip.Kishorbhai@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 9a9f8362811f..c3c045c8144f 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -3614,6 +3614,11 @@ static int dm_resume(struct amdgpu_ip_block *ip_block) if (aconnector->mst_root) continue; + /* Skip eDP detection, when there is no sink present */ + if (aconnector->dc_link->connector_signal == SIGNAL_TYPE_EDP && + !aconnector->dc_link->edp_sink_present) + continue; + guard(mutex)(&aconnector->hpd_lock); if (!dc_link_detect_connection_type(aconnector->dc_link, &new_connection_type)) drm_err(adev_to_drm(adev), "KMS: Failed to detect connector\n"); |