openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/amd/display: use link type to decide stream enc acquisition 

[Why]
Virtual sink is used when set mode happens on a disconnected display
to allow the mode set to proceed. This did not work with MST because
the logic for acquiring stream encoder uses stream signal to determine
the special handling is required, and stream signal is virtual instead
of DP in this case.

[How]
Use link type to decide instead.

Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Eric Yang 2018-08-24 16:54:14 -04:00 committed by Alex Deucher
parent 2222f4486b
commit cae50a43b9
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/amd/display/dc/core/dc_resource.c
View File

@ -1762,7 +1762,7 @@ static struct stream_encoder *find_first_free_match_stream_enc_for_link(
* required for non DP connectors.
*/
if (j >= 0 && dc_is_dp_signal(stream->signal))
if (j >= 0 && link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT)
return pool->stream_enc[j];
return NULL;