On Wed, Dec 03, 2025 at 12:31:31PM +0200, Jouni Högander wrote: > Currently we are leaving pr_dpcd containing Panel Replay capability DPCD > registers as it is on disconnect. Clear it as well on disconnect. > > v2: add FIXME > > Signed-off-by: Jouni Högander <[email protected]>
Reviewed-by: Imre Deak <[email protected]> > --- > drivers/gpu/drm/i915/display/intel_dp.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/drivers/gpu/drm/i915/display/intel_dp.c > b/drivers/gpu/drm/i915/display/intel_dp.c > index dcceb0ae2a56d..3838835e7e7eb 100644 > --- a/drivers/gpu/drm/i915/display/intel_dp.c > +++ b/drivers/gpu/drm/i915/display/intel_dp.c > @@ -6048,7 +6048,15 @@ intel_dp_detect(struct drm_connector *_connector, > > if (status == connector_status_disconnected) { > intel_dp_test_reset(intel_dp); > + /* > + * FIXME: Resetting these caps here cause > + * state computation fail if the connector need to be > + * modeset after sink disconnect. Move resetting them > + * to where new sink is connected. > + */ > memset(connector->dp.dsc_dpcd, 0, > sizeof(connector->dp.dsc_dpcd)); > + memset(connector->dp.panel_replay_caps.dpcd, 0, > + sizeof(connector->dp.panel_replay_caps.dpcd)); > intel_dp->psr.sink_panel_replay_support = false; > intel_dp->psr.sink_panel_replay_su_support = false; > intel_dp->psr.sink_panel_replay_dsc_support = > -- > 2.43.0 >
