X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fgpu%2Fdrm%2Fi915%2Fintel_dp.c;fp=kernel%2Fdrivers%2Fgpu%2Fdrm%2Fi915%2Fintel_dp.c;h=fb2983f77141b5a5a0bac3ec99df44a13fce7abc;hb=ec0a2ed6d8a5e555edef907895c041e285fdb495;hp=b1fe32b119ef84202e99d8540d848197f8842d51;hpb=342fa5dfa053559f47caad657132522496dcf1b3;p=kvmfornfv.git

diff --git a/kernel/drivers/gpu/drm/i915/intel_dp.c b/kernel/drivers/gpu/drm/i915/intel_dp.c
index b1fe32b11..fb2983f77 100644
--- a/kernel/drivers/gpu/drm/i915/intel_dp.c
+++ b/kernel/drivers/gpu/drm/i915/intel_dp.c
@@ -4691,9 +4691,12 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
 
 		intel_dp_probe_oui(intel_dp);
 
-		if (!intel_dp_probe_mst(intel_dp))
+		if (!intel_dp_probe_mst(intel_dp)) {
+			drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
+			intel_dp_check_link_status(intel_dp);
+			drm_modeset_unlock(&dev->mode_config.connection_mutex);
 			goto mst_fail;
-
+		}
 	} else {
 		if (intel_dp->is_mst) {
 			if (intel_dp_check_mst_status(intel_dp) == -EINVAL)
@@ -4701,10 +4704,6 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
 		}
 
 		if (!intel_dp->is_mst) {
-			/*
-			 * we'll check the link status via the normal hot plug path later -
-			 * but for short hpds we should check it now
-			 */
 			drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
 			intel_dp_check_link_status(intel_dp);
 			drm_modeset_unlock(&dev->mode_config.connection_mutex);