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drm/i915/dp_mst: Clear the ACT sent flag during encoder disabling too 

During encoder enabling we clear the flag before starting the ACT
sequence and wait for the flag, but the clearing is missing during
encoder disabling, add it there too. Since nothing cleared the flag
automatically we could've run subsequent disabling steps too early.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200616141855.746-5-imre.deak@intel.com
This commit is contained in:
Imre Deak 2020-06-16 17:18:54 +03:00
parent 3d289d2578
commit 90d4f99ac5
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/i915/display/intel_dp_mst.c
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@ -390,6 +390,8 @@ static void intel_mst_post_disable_dp(struct intel_atomic_state *state,
drm_dp_update_payload_part2(&intel_dp->mst_mgr); drm_dp_update_payload_part2(&intel_dp->mst_mgr);
clear_act_sent(intel_dp);
val = intel_de_read(dev_priv, val = intel_de_read(dev_priv,
TRANS_DDI_FUNC_CTL(old_crtc_state->cpu_transcoder)); TRANS_DDI_FUNC_CTL(old_crtc_state->cpu_transcoder));
val &= ~TRANS_DDI_DP_VC_PAYLOAD_ALLOC; val &= ~TRANS_DDI_DP_VC_PAYLOAD_ALLOC;