> On May 4, 2020, at 17:47, Oliver Neukum <oneukum@xxxxxxxx> wrote: > > Am Montag, den 04.05.2020, 17:19 +0800 schrieb Kai-Heng Feng: >> Etron EJ168 USB 3.0 Host Controller stops working after S3, if it was >> runtime suspended previously: >> [ 370.080359] pci 0000:02:00.0: can't change power state from D3cold to D0 (config space inaccessible) > > Apparently this controller has issues with D3cold > >> [ 370.080477] xhci_hcd 0000:04:00.0: can't change power state from D3cold to D0 (config space inaccessible) >> [ 370.080532] pcieport 0000:00:1c.0: DPC: containment event, status:0x1f05 source:0x0200 >> [ 370.080533] pcieport 0000:00:1c.0: DPC: ERR_FATAL detected >> [ 370.080536] xhci_hcd 0000:04:00.0: can't change power state from D3hot to D0 (config space inaccessible) >> [ 370.080552] xhci_hcd 0000:04:00.0: AER: can't recover (no error_detected callback) >> [ 370.080566] usb usb3: root hub lost power or was reset >> [ 370.080566] usb usb4: root hub lost power or was reset >> [ 370.080572] xhci_hcd 0000:04:00.0: Host halt failed, -19 >> [ 370.080574] xhci_hcd 0000:04:00.0: Host not accessible, reset failed. >> [ 370.080575] xhci_hcd 0000:04:00.0: PCI post-resume error -19! >> [ 370.080586] xhci_hcd 0000:04:00.0: HC died; cleaning up >> >> This can be fixed by not runtime suspend the controller at all. >> >> So instead of conditionally runtime suspend the controller, always >> prevent runtime suspend with XHCI_RESET_ON_RESUME quirk. > > What does that do to other controllers that can do runtime suspend > under the current scheme? Ok, I'll add a new quirk specific to this controller. Kai-Heng > > Regards > Oliver >
