FAILED: patch "[PATCH] drm/amd/display: Use periodic detection for ipx/headless" failed to apply to 6.10-stable tree

The patch below does not apply to the 6.10-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.10.y
git checkout FETCH_HEAD
git cherry-pick -x 9862ef7bae47b9292a38a0a1b30bff7f56d7815b
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<[email protected]>' --in-reply-to '2024081257-commute-zone-b217@gregkh' --subject-prefix 'PATCH 6.10.y' HEAD^..

Possible dependencies:

9862ef7bae47 ("drm/amd/display: Use periodic detection for ipx/headless") 234e94555800 ("drm/amd/display: Enable copying of bounding box data from VBIOS DMUB") afca033f10d3 ("drm/amd/display: Add periodic detection for IPS") 05c5ffaac770 ("drm/amd/display: gpuvm handling in DML21")
70839da63605 ("drm/amd/display: Add new DCN401 sources")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 9862ef7bae47b9292a38a0a1b30bff7f56d7815b Mon Sep 17 00:00:00 2001
From: Roman Li <[email protected]>
Date: Thu, 13 Jun 2024 10:41:51 -0400
Subject: [PATCH] drm/amd/display: Use periodic detection for ipx/headless

[WHY]
Hotplug is not detected in headless (no eDP) mode on dcn35x. With no display dcn35x goes to IPS2 powersaving state where HPD interrupt is not handled.

[HOW]
Use idle worker thread for periodic detection of HPD in headless mode.

index dfcbc1970fe6..5fd1b6b44577 100644
@@ -989,4 +989,7 @@ void *dm_allocate_gpu_mem(struct amdgpu_device *adev,
 						  enum dc_gpu_mem_alloc_type type,
 						  size_t size,
 						  long long *addr);
+
+bool amdgpu_dm_is_headless(struct amdgpu_device *adev);
+
 #endif /* __AMDGPU_DM_H__ */

index adbf560d6a74..97614947d75b 100644
@@ -1239,8 +1239,11 @@ void dm_helpers_enable_periodic_detection(struct dc_context *ctx, bool enable)
 {
 	struct amdgpu_device *adev = ctx->driver_context;
 
-	if (adev->dm.idle_workqueue)
+	if (adev->dm.idle_workqueue) {
 		adev->dm.idle_workqueue->enable = enable;
+		if (enable && !adev->dm.idle_workqueue->running && amdgpu_dm_is_headless(adev))
+			schedule_work(&adev->dm.idle_workqueue->work);
+	}
 }
 
 void dm_helpers_dp_mst_update_branch_bandwidth(