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drm/amd/display: Revert "Disconnect non-DP with no EDID"

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[Why]
Found a use case (IPKVM) that DP-VGA active dongle does
not return any EDID and the mentioned commit broke it.

[How]
This reverts "Disconnect non-DP with no EDID"

Signed-off-by: Roy Chan <roy.chan@amd.com>
Reviewed-by: Chris Park <Chris.Park@amd.com>
Acked-by: Stylon Wang <stylon.wang@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Roy Chan 2021-05-20 16:20:39 -04:00 committed by Alex Deucher
parent fcd1e484c8
commit f2700d0bb7
1 changed files with 0 additions and 18 deletions
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18
drivers/gpu/drm/amd/display/dc/core/dc_link.c
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@ -1099,24 +1099,6 @@ static bool dc_link_detect_helper(struct dc_link *link,
dc_is_dvi_signal(link->connector_signal)) {
if (prev_sink)
dc_sink_release(prev_sink);
link_disconnect_sink(link);
return false;
}
/*
* Abort detection for DP connectors if we have
* no EDID and connector is active converter
* as there are no display downstream
*
*/
if (dc_is_dp_sst_signal(link->connector_signal) &&
(link->dpcd_caps.dongle_type ==
DISPLAY_DONGLE_DP_VGA_CONVERTER ||
link->dpcd_caps.dongle_type ==
DISPLAY_DONGLE_DP_DVI_CONVERTER)) {
if (prev_sink)
dc_sink_release(prev_sink);
link_disconnect_sink(link);
return false;
}