From: Imre Deak <imre.deak@intel.com>
Date: Wed, 25 Feb 2026 16:45:59 +0000 (+0200)
Subject: drm/i915/dp_mst: Reprobe connector if the IRQ ESI read failed
X-Git-Tag: v7.1-rc1~167^2~24^2~73
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c51348f02b19aa292b4e92b465af45503e0210b4;p=thirdparty%2Flinux.git

drm/i915/dp_mst: Reprobe connector if the IRQ ESI read failed

An AUX access failure during HPD IRQ handling should be handled by
falling back to a full connector detection, do so.

Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20260225164618.1261368-2-imre.deak@intel.com
---

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index a202b8fe246ab..9dbc44cbe8c7b 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -5505,7 +5505,7 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp)
 		if (!intel_dp_get_sink_irq_esi(intel_dp, esi)) {
 			drm_dbg_kms(display->drm,
 				    "failed to get ESI - device may have failed\n");
-			link_ok = false;
+			reprobe_needed = true;
 
 			break;
 		}