[SRU][P][PATCH 1/6] drm/amd: Unify shutdown() callback behavior

[AceLan Kao]

From: Mario Limonciello <mario.limonciello at amd.com>

BugLink: https://bugs.launchpad.net/bugs/2115860

[Why]
The shutdown() callback uses amdgpu_ip_suspend() which doesn't notify
drm clients during shutdown.  This could lead to hangs.

[How]
Change amdgpu_pci_shutdown() to call the same sequence as suspend/resume.

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
(cherry picked from commit e6af507de8594a3965cbfba9f70b312d4216d5fb linux-next)
Signed-off-by: Chia-Lin Kao (AceLan) <acelan.kao at canonical.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index e4ce33e69a48..747cfffd52bf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -2489,7 +2489,8 @@ amdgpu_pci_shutdown(struct pci_dev *pdev)
 	 */
 	if (!amdgpu_passthrough(adev))
 		adev->mp1_state = PP_MP1_STATE_UNLOAD;
-	amdgpu_device_ip_suspend(adev);
+	amdgpu_device_prepare(dev);
+	amdgpu_device_suspend(dev, true);
 	adev->mp1_state = PP_MP1_STATE_NONE;
 }
 
-- 
2.43.0