diff options
| author | Ankit Nautiyal <ankit.k.nautiyal@intel.com> | 2026-04-24 14:39:40 +0530 |
|---|---|---|
| committer | Ankit Nautiyal <ankit.k.nautiyal@intel.com> | 2026-04-28 16:16:59 +0530 |
| commit | 60656fa8feb07bc767cb3cce1ae40d1d560f8b06 (patch) | |
| tree | 065956d57e4e52856adc26f3609de9bdd63e7fac | |
| parent | 28ecf45468514483131f1ba411c0fb6c94580f1a (diff) | |
drm/i915/vrr: Avoid vrr for PCON with HDMI2.1 sink
Currently we do not support VRR with HDMI so skip vrr compute
config step for all DP branch devices.
v2: Restrict VRR on all DP branch devices instead for checking only for
HDMI. (Ville)
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20260424090942.3060291-2-ankit.k.nautiyal@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_vrr.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c index fae1186a90b2..1b09992ce9fd 100644 --- a/drivers/gpu/drm/i915/display/intel_vrr.c +++ b/drivers/gpu/drm/i915/display/intel_vrr.c @@ -55,6 +55,16 @@ bool intel_vrr_is_capable(struct intel_connector *connector) if (connector->mst.dp) return false; intel_dp = intel_attached_dp(connector); + /* + * Among non-MST DP branch devices, only an HDMI 2.1 sink connected + * via a PCON could support VRR. However, supporting VRR through a + * PCON requires non-trivial changes that are not implemented yet. + * Until that support exists, avoid VRR on all DP branch devices. + * + * TODO: Add support for VRR for DP->HDMI 2.1 PCON. + */ + if (drm_dp_is_branch(intel_dp->dpcd)) + return false; if (!drm_dp_sink_can_do_video_without_timing_msa(intel_dp->dpcd)) return false; |