diff options
| author | Samson Tam <Samson.Tam@amd.com> | 2020-08-13 10:50:21 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-08-26 16:40:18 -0400 |
| commit | 5019d8f1034324f284bd3fdb26aee6e7f34b83f9 (patch) | |
| tree | beaeaffc5110a1d439ffcbf37d88e6d3e6818b09 /drivers/gpu/drm/amd/display/dc/core | |
| parent | 6f77b2ac628073f647041a92b36c824ae3aef16e (diff) | |
| download | linux-5019d8f1034324f284bd3fdb26aee6e7f34b83f9.tar.bz2 | |
drm/amd/display: Fix passive dongle mistaken as active dongle in EDID emulation
[Why]
dongle_type is set during dongle connection but for passive dongles,
dongle_type is not set. If user starts with an active dongle and
then switches to a passive dongle, it will still report as an active
dongle. Trying to emulate the wrong connecter type results in display
not lighting up.
[How]
Set dpcd_caps.dongle_type for passive dongles in detect_dp().
Signed-off-by: Samson Tam <Samson.Tam@amd.com>
Reviewed-by: Joshua Aberback <Joshua.Aberback@amd.com>
Acked-by: Eryk Brol <eryk.brol@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_link.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index 405452b736e1..437d1a7a16fe 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -763,6 +763,7 @@ static bool detect_dp(struct dc_link *link, sink_caps->signal = dp_passive_dongle_detection(link->ddc, sink_caps, audio_support); + link->dpcd_caps.dongle_type = sink_caps->dongle_type; } return true; |