drm/amd: Enable PCIe PME from D3

When dGPU is put into BOCO it may be in D3cold but still able send
PME on display hotplug event. For this to work it must be enabled
as wake source from D3.

When runpm is enabled use pci_wake_from_d3() to mark wakeup as
enabled by default.

Cc: [email protected] # 6.1+
Signed-off-by: Mario Limonciello <[email protected]>
Acked-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

Author: superm1

drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c

@@ -2263,6 +2263,8 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
 		pm_runtime_mark_last_busy(ddev->dev);
 		pm_runtime_put_autosuspend(ddev->dev);
 
+		pci_wake_from_d3(pdev, TRUE);
+
 		/*
 		 * For runpm implemented via BACO, PMFW will handle the
 		 * timing for BACO in and out: