diff options
| author | Ankit Nautiyal <ankit.k.nautiyal@intel.com> | 2022-10-11 09:34:40 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-11-03 17:59:16 +0300 |
| commit | 4e2cbc1f0e18f365c2a0d6744a48365e82e6707e (patch) | |
| tree | 9d4d1ef8a81ecd2167a506b8b205d930c02b2287 | |
| parent | 3d92ab0865f158f3e10d1d8168a71455634377df (diff) | |
| download | linux-4e2cbc1f0e18f365c2a0d6744a48365e82e6707e.tar.xz | |
drm/i915/dp: Reset frl trained flag before restarting FRL training
[ Upstream commit 63720a561b3c98199adf0c73e152807f15cc3b7f ]
For cases where DP has HDMI2.1 sink and FRL Link issues are detected,
reset the flag to state FRL trained status before restarting FRL
training.
Fixes: 9488a030ac91 ("drm/i915: Add support for enabling link status and recovery")
Cc: Swati Sharma <swati2.sharma@intel.com>
Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Cc: Uma Shankar <uma.shankar@intel.com> (v2)
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221011063447.904649-2-ankit.k.nautiyal@intel.com
(cherry picked from commit 47e1a59e60c688c5f95b67277202f05b7e84c189)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index f87e4d510ea5..1ccdf2da042b 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -3497,6 +3497,8 @@ intel_dp_handle_hdmi_link_status_change(struct intel_dp *intel_dp) drm_dp_pcon_hdmi_frl_link_error_count(&intel_dp->aux, &intel_dp->attached_connector->base); + intel_dp->frl.is_trained = false; + /* Restart FRL training or fall back to TMDS mode */ intel_dp_check_frl_training(intel_dp); } |