Patch "drm/amdgpu: call hpd_irq_event on resume" has been added to the 4.4-stable tree

Patch "drm/amdgpu: call hpd_irq_event on resume" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    drm/amdgpu: call hpd_irq_event on resume

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-amdgpu-call-hpd_irq_event-on-resume.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 54fb2a5cd0baf8e97d743de411e2f832d1afa68d Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 24 Nov 2015 14:30:56 -0500
Subject: drm/amdgpu: call hpd_irq_event on resume

From: Alex Deucher <alexander.deucher@amd.com>

commit 54fb2a5cd0baf8e97d743de411e2f832d1afa68d upstream.

Need to call this on resume if displays changes during
suspend in order to properly be notified of changes.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1788,6 +1788,7 @@ int amdgpu_resume_kms(struct drm_device
 	}
 
 	drm_kms_helper_poll_enable(dev);
+	drm_helper_hpd_irq_event(dev);
 
 	if (fbcon) {
 		amdgpu_fbdev_set_suspend(adev, 0);


Patches currently in stable-queue which might be from alexander.deucher@amd.com are

queue-4.4/drm-amdgpu-fix-s4-resume.patch
queue-4.4/drm-amdgpu-use-post-decrement-in-error-handling.patch
queue-4.4/drm-amdgpu-drop-topaz-support-from-gmc8-module.patch
queue-4.4/drm-amdgpu-remove-exp-hardware-support-from-iceland.patch
queue-4.4/drm-add-drm_fixp_from_fraction-and-drm_fixp2int_ceil.patch
queue-4.4/drm-amdgpu-fix-issue-with-overlapping-userptrs.patch
queue-4.4/drm-amdgpu-pull-topaz-gmc-bits-into-gmc_v7.patch
queue-4.4/drm-amdgpu-the-vi-specific-exe-bit-should-only-apply-to-gmc-v8.0-above.patch
queue-4.4/drm-amdgpu-move-gmc7-support-out-of-cik-dependency.patch
queue-4.4/drm-amdgpu-iceland-use-ci-based-mc-ip.patch
queue-4.4/drm-dp-mst-process-broadcast-messages-correctly.patch
queue-4.4/drm-amdgpu-fix-amdgpu_bo_pin_restricted-vram-placing-v2.patch
queue-4.4/drm-dp-mst-fix-in-rad-element-access.patch
queue-4.4/drm-amdgpu-remove-unnecessary-forward-declaration.patch
queue-4.4/drm-dp-mst-move-guid-storage-from-mgr-port-to-only-mst-branch.patch
queue-4.4/drm-amdgpu-fix-tonga-smu-resume.patch
queue-4.4/drm-amdgpu-don-t-load-mec2-on-topaz.patch
queue-4.4/drm-amdgpu-no-need-to-load-mc-firmware-on-fiji.patch
queue-4.4/drm-amdgpu-pm-adjust-display-configuration-after-powerstate.patch
queue-4.4/drm-dp-mst-always-send-reply-for-up-request.patch
queue-4.4/drm-amdgpu-don-t-hang-in-amdgpu_flip_work_func-on-disabled-crtc.patch
queue-4.4/drm-amdgpu-call-hpd_irq_event-on-resume.patch
queue-4.4/drm-dp-mst-calculate-mst-pbn-with-31.32-fixed-point.patch
queue-4.4/drm-amdgpu-hold-reference-to-fences-in-amdgpu_sa_bo_new-v2.patch
queue-4.4/drm-dp-mst-fix-in-mstb-rad-initialization.patch
queue-4.4/drm-dp-mst-reverse-order-of-mst-enable-and-clearing-vc-payload-table.patch