diff options
| author | Chiawen Huang <chiawen.huang@amd.com> | 2020-09-25 10:54:55 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-09-29 16:11:13 -0400 |
| commit | 8353d30e747f4e5cdd867c6b054dbb85cdcc76a9 (patch) | |
| tree | afbd17e93b61d7b721808454e45d536a8ab37885 /drivers/gpu/drm/amd/display/dc/core | |
| parent | d9beecfc79b71498e7f0bc40c550155f4e6b3c98 (diff) | |
| download | linux-8353d30e747f4e5cdd867c6b054dbb85cdcc76a9.tar.bz2 | |
drm/amd/display: disable stream if pixel clock changed with link active
[Why]
Vbios uses preferred timing to turn on edp but OS could use other
timing. If change pixel clock when link active, there is unexpected
garbage on monitor.
[How]
Once pixel clock changed, the driver needs to disable stream.
Signed-off-by: Chiawen Huang <chiawen.huang@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 76946a7d47ca..2a725a5fba40 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -864,7 +864,6 @@ static void disable_vbios_mode_if_required( if (stream->link->local_sink && stream->link->local_sink->sink_signal == SIGNAL_TYPE_EDP) { link = stream->link; - break; } if (link != NULL) { |