AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-17 08:06:57 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

drm/amd/display: Treat bad EDID as no EDID

Browse Source 
We have an mst dock firmware that will emulate an EDID with bad
checksum.

v2: Tread -> Treat

Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Eric Yang 2018-02-08 14:05:14 -05:00 committed by Alex Deucher
parent 05a2e8315f
commit 6531738842
1 changed files with 9 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/gpu/drm/amd/display/dc/core/dc.c
View File

@ -1637,12 +1637,17 @@ struct dc_sink *dc_link_add_remote_sink(
&dc_sink->dc_edid,
&dc_sink->edid_caps);
if (edid_status != EDID_OK)
goto fail;
/*
* Treat device as no EDID device if EDID
* parsing fails
*/
if (edid_status != EDID_OK) {
dc_sink->dc_edid.length = 0;
dm_error("Bad EDID, status%d!\n", edid_status);
}
return dc_sink;
fail:
dc_link_remove_remote_sink(link, dc_sink);
fail_add_sink:
dc_sink_release(dc_sink);
return NULL;