Bug 212419

Summary: System automatically shutdown if root port of Intel XMM7360 WWAN ever enters D3cold
Product: Drivers Reporter: Kai-Heng Feng (kai.heng.feng)
Component: PCIAssignee: drivers_pci (drivers_pci)
Status: NEW ---    
Severity: normal CC: binli
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: mainline, linux-next Subsystem:
Regression: No Bisected commit-id:
Attachments: dmesg
lspci -vvnn

Description Kai-Heng Feng 2021-03-24 07:10:18 UTC 
On some laptops, the root port for Intel XMM7360 WWAN supports D3cold.

When the root port is put to D3cold by system suspend or runtime suspend, the system/runtime resume will freeze the laptop.
Comment 1 Kai-Heng Feng 2021-03-24 07:10:57 UTC 
After the freeze, the laptop will automatically shutdown.
Comment 2 Kai-Heng Feng 2021-03-24 07:11:26 UTC 
Created attachment 296027 [details]
dmesg
Comment 3 Kai-Heng Feng 2021-03-24 07:11:42 UTC 
Created attachment 296029 [details]
lspci -vvnn