diff options
| author | Wenjing Liu <Wenjing.Liu@amd.com> | 2018-12-04 01:26:15 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-12-19 02:25:13 +0300 |
| commit | 1ae62f3114a95982f2f4cbe5c7bd14b81233597a (patch) | |
| tree | 98bf95d8f94c2c8290ebc6b230a6cd243b96de0c /drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c | |
| parent | fd0853567cdf2eeddf22ba9021deedf6b1f90f7a (diff) | |
| download | linux-1ae62f3114a95982f2f4cbe5c7bd14b81233597a.tar.xz | |
drm/amd/display: verify lane status before exiting verify link cap
[why]
DP LL CTS1.4 4.3.2.1 test failure.
[how]
The failure is caused by not handling DP link loss
hpd short pusle during set mode. The change is to read link status
before set mode link training. If link is lost, re-verify link caps.
Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c index 82cd1d6e6e59..0065ec7d5330 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c @@ -96,6 +96,7 @@ void dp_enable_link_phy( link_settings, clock_source); } + link->cur_link_settings = *link_settings; dp_receiver_power_ctrl(link, true); } @@ -307,6 +308,7 @@ void dp_retrain_link_dp_test(struct dc_link *link, link->link_enc, link_setting, pipes[i].clock_source->id); + link->cur_link_settings = *link_setting; dp_receiver_power_ctrl(link, true); @@ -316,7 +318,6 @@ void dp_retrain_link_dp_test(struct dc_link *link, skip_video_pattern, LINK_TRAINING_ATTEMPTS); - link->cur_link_settings = *link_setting; link->dc->hwss.enable_stream(&pipes[i]); |