diff options
| author | Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com> | 2021-11-04 16:52:09 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-11-17 16:58:09 -0500 |
| commit | 6ef86fa8ccc8a3200fc89e8c9b50f1b90144b65c (patch) | |
| tree | f796ced95ab7b9e992c53788ef6ef6e7cdbd7481 /drivers/gpu/drm/amd/display/dc/dc_link.h | |
| parent | 095041dbfa03a193c7e76c00b0cdd1cfcd45869e (diff) | |
drm/amd/display: Add hpd pending flag to indicate detection of new hpd
[Why]
For dpia link, link->hpd_status indicates current state, but driver
fails to capture hpd transitions in certain scenarios such as during
link training.
[How]
Added link->hpd_pending flag that captures arrival of new hpd.
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Anson Jacob <Anson.Jacob@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_link.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_link.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h index b732398dac89..d449e72a4e2a 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_link.h +++ b/drivers/gpu/drm/amd/display/dc/dc_link.h @@ -113,6 +113,7 @@ struct dc_link { * DIG encoder. */ bool is_dig_mapping_flexible; bool hpd_status; /* HPD status of link without physical HPD pin. */ + bool is_hpd_pending; /* Indicates a new received hpd */ bool edp_sink_present; |