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| author | Roman Li <roman.li@amd.com> | 2024-06-13 10:41:51 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-06-27 17:10:38 -0400 |
| commit | 9862ef7bae47b9292a38a0a1b30bff7f56d7815b (patch) | |
| tree | 7cfcbf17a8b05a8151e0eccfcc523c47f2c78e9b /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | |
| parent | drm/amd/display: Fix 1DLUT setting for NL SDR blending (diff) | |
| download | linux-9862ef7bae47b9292a38a0a1b30bff7f56d7815b.tar.gz linux-9862ef7bae47b9292a38a0a1b30bff7f56d7815b.zip | |
drm/amd/display: Use periodic detection for ipx/headless
[WHY]
Hotplug is not detected in headless (no eDP) mode on dcn35x.
With no display dcn35x goes to IPS2 powersaving state where HPD interrupt
is not handled.
[HOW]
Use idle worker thread for periodic detection of HPD in headless mode.
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Roman Li <roman.li@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/amdgpu_dm/amdgpu_dm_helpers.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c index adbf560d6a74..97614947d75b 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c @@ -1239,8 +1239,11 @@ void dm_helpers_enable_periodic_detection(struct dc_context *ctx, bool enable) { struct amdgpu_device *adev = ctx->driver_context; - if (adev->dm.idle_workqueue) + if (adev->dm.idle_workqueue) { adev->dm.idle_workqueue->enable = enable; + if (enable && !adev->dm.idle_workqueue->running && amdgpu_dm_is_headless(adev)) + schedule_work(&adev->dm.idle_workqueue->work); + } } void dm_helpers_dp_mst_update_branch_bandwidth( |