diff options
| author | Zhan Liu <zhan.liu@amd.com> | 2020-02-22 01:25:47 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-02-25 19:02:14 +0300 |
| commit | f739ce5768eddbe573c8b30d8ac109de67c57d29 (patch) | |
| tree | c3d943b4dd20ea3ff26b108e90d8055b7ce74bf7 /tools/perf/scripts/python/syscall-counts.py | |
| parent | b80cd524ac44a29635eec377c6f845b3c321b592 (diff) | |
| download | linux-f739ce5768eddbe573c8b30d8ac109de67c57d29.tar.xz | |
drm/amd/display: Add aconnector condition check for dpcd read
[Why]
core_link_read_dpcd() will invoke dm_helpers_dp_read_dpcd(),
which needs to read dpcd info with the help of aconnector.
If aconnector (dc->links[i]->prev) is NULL, then dpcd status
cannot be read.
As a result, dpcd read fails and a line of error will be
printed out in dmesg.log as:
"*ERROR* Failed to found connector for link!"
[How]
Make sure that aconnector (dc->links[i]->prev) is not NULL,
then read dpcd status.
Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Joseph Gravenor <Joseph.Gravenor@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions