diff options
| author | Fangzhi Zuo <jerry.zuo@amd.com> | 2026-07-17 23:46:23 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-08-06 09:58:29 -0400 |
| commit | df94112ceebfb20bc7f6524769c74d5e6e8dcc2d (patch) | |
| tree | 79fa237c11e21d31277f99b32afc6d8043f7873e /drivers/gpu | |
| parent | 3df68ac6a75feffedbbf3f24e7914ebb3d79d631 (diff) | |
| download | linux-df94112ceebfb20bc7f6524769c74d5e6e8dcc2d.tar.gz linux-df94112ceebfb20bc7f6524769c74d5e6e8dcc2d.zip | |
drm/amd/display: Gate HDMI FRL status polling on active FRL link rate
[Why]
hdmi_frl_status_polling_work() skipped any link whose connector_signal
was not SIGNAL_TYPE_HDMI_FRL. connector_signal is not reliably set to
SIGNAL_TYPE_HDMI_FRL while a link is actually running FRL, so links that
were operating in FRL mode were skipped and their status flags never got
polled, missing link-retrain events.
[How]
Use frl_link_settings.frl_link_rate to decide whether a link is running
FRL. A non-zero rate means FRL is active, so only links with a zero rate
are skipped. This ensures every link actually operating in FRL mode is
polled for status changes.
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_connector.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_connector.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_connector.c index db211884616c..2b0ffa20d98e 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_connector.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_connector.c @@ -3068,7 +3068,7 @@ static void hdmi_frl_status_polling_work(struct work_struct *work) if (!dc_is_hdmi_signal(dc_link->connector_signal)) continue; - if (dc_link->connector_signal != SIGNAL_TYPE_HDMI_FRL) + if (dc_link->frl_link_settings.frl_link_rate == 0) continue; link_update = dc_link_frl_poll_status_flag(dc_link); |