Patch "drm/amdgpu: fix tonga smu resume" has been added to the 4.4-stable tree

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

drm/amdgpu: fix tonga smu 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-fix-tonga-smu-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 <[email protected]> know about it.

From: Alex Deucher <[email protected]>
Date: Thu, 14 Jan 2016 13:48:24 -0500
Subject: drm/amdgpu: fix tonga smu resume
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From: Alex Deucher <[email protected]>

commit e160e4db833c7e8587ec3c88efaed0d84f1bcf42 upstream.

Need to make sure smu buffers are pinned on resume. This matches what Fiji does.

---
 drivers/gpu/drm/amd/amdgpu/tonga_dpm.c |   17 ++---------------
 1 file changed, 2 insertions(+), 15 deletions(-)

@@ -122,25 +122,12 @@ static int tonga_dpm_hw_fini(void *handl
 
 static int tonga_dpm_suspend(void *handle)
 {
-	return 0;
+	return tonga_dpm_hw_fini(handle);
 }
 
 static int tonga_dpm_resume(void *handle)
 {
-	int ret;
-	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
-
-	mutex_lock(&adev->pm.mutex);
-
-	ret = tonga_smu_start(adev);
-	if (ret) {
-		DRM_ERROR("SMU start failed\n");
-		goto fail;
-	}
-
-fail:
-	mutex_unlock(&adev->pm.mutex);
-	return ret;
+	return tonga_dpm_hw_init(handle);
 }
 
 static int tonga_dpm_set_clockgating_state(void *handle,

Patches currently in stable-queue which might be from [email protected] 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