From e3e70d08409086ada2c864373d9d8b8ef9a55936 Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Mon, 10 Jun 2024 19:49:27 +0300 Subject: [PATCH] drm/i915/dp_mst: Reset intel_dp->link_trained during disabling MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Reset the flag indicating an active link after disabling an MST link, similarly to how this is done for SST outputs. This avoids trying to retrain an MST link while its disabled. Reviewed-by: Ville Syrjälä Signed-off-by: Imre Deak Link: https://patchwork.freedesktop.org/patch/msgid/20240610164933.2947366-16-imre.deak@intel.com --- drivers/gpu/drm/i915/display/intel_dp_mst.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 06fa0641f78f..e92a10c1f34e 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -983,6 +983,9 @@ static void intel_mst_disable_dp(struct intel_atomic_state *state, drm_dbg_kms(&i915->drm, "active links %d\n", intel_dp->active_mst_links); + if (intel_dp->active_mst_links == 1) + intel_dp->link_trained = false; + intel_hdcp_disable(intel_mst->connector); intel_dp_sink_disable_decompression(state, connector, old_crtc_state); -- 2.49.0