FAILED: patch "[PATCH] drm/amdgpu: move poll enabled/disable into non DC path" failed to apply to 6.2-stable tree

The patch below does not apply to the 6.2-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-6.2.y
git checkout FETCH_HEAD
git cherry-pick -x 3fadda5de8073e2cb65744803a6941736411d55b
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<[email protected]>' --in-reply-to '[email protected]' --subject-prefix 'PATCH 6.2.y' HEAD^..

Possible dependencies:

3fadda5de807 ("drm/amdgpu: move poll enabled/disable into non DC path")

thanks,

greg k-h

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

From 3fadda5de8073e2cb65744803a6941736411d55b Mon Sep 17 00:00:00 2001
From: Guchun Chen <[email protected]>
Date: Thu, 9 Mar 2023 10:02:45 +0800
Subject: [PATCH] drm/amdgpu: move poll enabled/disable into non DC path

Some amd asics having reliable hotplug support don't call drm_kms_helper_poll_init in driver init sequence. However, due to the unified suspend/resume path for all asics, because the output_poll_work->func is not set for these asics, a warning arrives when suspending.

[   90.656049]  <TASK>
[   90.656050]  ? console_unlock+0x4d/0x100
[   90.656053]  ? __irq_work_queue_local+0x27/0x60
[   90.656056]  ? irq_work_queue+0x2b/0x50
[   90.656057]  ? __wake_up_klogd+0x40/0x60
[   90.656059]  __cancel_work_timer+0xed/0x180
[   90.656061]  drm_kms_helper_poll_disable.cold+0x1f/0x2c [drm_kms_helper]
[   90.656072]  amdgpu_device_suspend+0x81/0x170 [amdgpu]
[   90.656180]  amdgpu_pmops_runtime_suspend+0xb5/0x1b0 [amdgpu]
[   90.656269]  pci_pm_runtime_suspend+0x61/0x1b0

drm_kms_helper_poll_enable/disable is valid when poll_init is called in amdgpu code, which is only used in non DC path. So move such codes into non-DC path code to get rid of such warnings.

v1: introduce use_kms_poll flag in amdgpu as the poll stuff check
v2: use dc_enabled as the flag to simply code
v3: move code into non DC path instead of relying on any flag

index c4a4e2fe6681..da5b0258a237 100644
@@ -4145,8 +4145,6 @@ int amdgpu_device_suspend(struct drm_device *dev, bool fbcon)
 	if (amdgpu_acpi_smart_shift_update(dev, AMDGPU_SS_DEV_D3))
 		DRM_WARN("smart shift update failed\n");
 
-	drm_kms_helper_poll_disable(dev);
-
 	if (fbcon)
 		drm_fb_helper_set_suspend_unlocked(adev_to_drm(adev)->fb_helper, true);
 

@@ -4243,8 +4241,6 @@ int amdgpu_device_resume(struct drm_device *dev, bool fbcon)
 	if (fbcon)
 		drm_fb_helper_set_suspend_unlocked(adev_to_drm(adev)->fb_helper, false);
 
-	drm_kms_helper_poll_enable(dev);
-
 	amdgpu_ras_resume(adev);
 
 	if (adev->mode_info.num_crtc) {

index 503f89a766c3..d60fe7eb5579 100644
@@ -1618,6 +1618,8 @@ int amdgpu_display_suspend_helper(struct amdgpu_device *adev)
 	struct drm_connector_list_iter iter;
 	int r;
 
+	drm_kms_helper_poll_disable(dev);
+
 	/* turn off display hw */
 	drm_modeset_lock_all(dev);
 	drm_connector_list_iter_begin(dev, &iter);

@@ -1694,6 +1696,8 @@ int amdgpu_display_resume_helper(struct amdgpu_device *adev)
 
 	drm_modeset_unlock_all(dev);
 
+	drm_kms_helper_poll_enable(dev);
+
 	return 0;
 }