From a4d5ce61765c08ab364aa4b327f6739b646e6cfa Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Mon, 8 Jul 2024 22:00:24 +0300 Subject: [PATCH] drm/i915/dp: Reset intel_dp->link_trained before retraining the link MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Regularly retraining a link during an atomic commit happens with the given pipe/link already disabled and hence intel_dp->link_trained being false. Ensure this also for retraining a DP SST link via direct calls to the link training functions (vs. an actual commit as for DP MST). So far nothing depended on this, however the next patch will depend on link_trained==false for changing the LTTPR mode to non-transparent. Cc: # v5.15+ Cc: Ville Syrjälä Reviewed-by: Ankit Nautiyal Signed-off-by: Imre Deak Link: https://patchwork.freedesktop.org/patch/msgid/20240708190029.271247-2-imre.deak@intel.com --- drivers/gpu/drm/i915/display/intel_dp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index edfb30857479..d4b1b18453dc 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -5305,6 +5305,8 @@ static int intel_dp_retrain_link(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state); + intel_dp->link_trained = false; + intel_dp_check_frl_training(intel_dp); intel_dp_pcon_dsc_configure(intel_dp, crtc_state); intel_dp_start_link_train(NULL, intel_dp, crtc_state); -- 2.49.0