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| author | Daniel Sa <Daniel.Sa@amd.com> | 2024-08-23 11:29:23 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-09-18 16:15:06 -0400 |
| commit | d18a56b247f4f3f7dbdd3adeeebd05c23f1e3d3e (patch) | |
| tree | 158a00de90703c326f79ca5eb8610020895d8ea1 /drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c | |
| parent | f588da30a20cf184f150420e4098b694908a4207 (diff) | |
| download | linux-stable-d18a56b247f4f3f7dbdd3adeeebd05c23f1e3d3e.tar.gz linux-stable-d18a56b247f4f3f7dbdd3adeeebd05c23f1e3d3e.tar.bz2 linux-stable-d18a56b247f4f3f7dbdd3adeeebd05c23f1e3d3e.zip | |
drm/amd/display: Emulate Display Hotplug Hang
[WHY]
Driver reports 0 display when the virtual display is still present, and
causes P-state hang in FW.
[HOW]
When enumerating through streams, check for active planes and use that
to indicate number of displays.
Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Daniel Sa <Daniel.Sa@amd.com>
Signed-off-by: Alex Hung <alex.hung@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/dc/clk_mgr/clk_mgr.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c index f770828df149..0e243f4344d0 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c @@ -59,6 +59,7 @@ int clk_mgr_helper_get_active_display_cnt( display_count = 0; for (i = 0; i < context->stream_count; i++) { const struct dc_stream_state *stream = context->streams[i]; + const struct dc_stream_status *stream_status = &context->stream_status[i]; /* Don't count SubVP phantom pipes as part of active * display count @@ -66,13 +67,7 @@ int clk_mgr_helper_get_active_display_cnt( if (dc_state_get_stream_subvp_type(context, stream) == SUBVP_PHANTOM) continue; - /* - * Only notify active stream or virtual stream. - * Need to notify virtual stream to work around - * headless case. HPD does not fire when system is in - * S0i2. - */ - if (!stream->dpms_off || stream->signal == SIGNAL_TYPE_VIRTUAL) + if (!stream->dpms_off || (stream_status && stream_status->plane_count)) display_count++; } |