Bug#677472: [3.1->3.2 regression] Immediate wake on suspend, associated with OHCI on MCP51
Am 19.12.2012 20:35, schrieb Alan Stern:
> On Wed, 19 Dec 2012, [ISO-8859-1] Frank Sch�fer wrote:
>
>> I can confirm that MCP55 has this bug and it should be safe to add
>> MCP65-78S, too, because MCP79 still has the bug.
> By the way, you mentioned that runtime suspend seemed to work okay,
> right? It might be worthwhile testing this again, just to be certain.
> In particular, I'd like to see what "lspci -vv" shows for the
> controller while it is runtime suspended with a device attached.
>
> As far as the OHCI hardware is concerned, there shouldn't be any
> difference between runtime suspend and system suspend. This strongly
> suggests that the bug doesn't lie in the controller itself but in the
> firmware (BIOS or ACPI).
>
> Alan Stern
>
Yes runtime suspend works (tested with a mouse) and lspci -vv doesn't
change.
With
/sys/devices/pci0000:00/0000:00:02.0/usb2/2-9/power:
control = on
runtime_status = active
00:02.0 USB controller: NVIDIA Corporation MCP61 USB 1.1 Controller (rev
a2) (prog-if 10 [OHCI])
Subsystem: ASUSTeK Computer Inc. Device 8234
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0 (750ns min, 250ns max)
Interrupt: pin A routed to IRQ 23
Region 0: Memory at fe02f000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: ohci_hcd
=> set control to 'auto'
runtime_status = active
00:02.0 USB controller: NVIDIA Corporation MCP61 USB 1.1 Controller (rev
a2) (prog-if 10 [OHCI])
Subsystem: ASUSTeK Computer Inc. Device 8234
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0 (750ns min, 250ns max)
Interrupt: pin A routed to IRQ 23
Region 0: Memory at fe02f000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: ohci_hcd
=> after ~2s the device suspends
runtime_status = suspended
00:02.0 USB controller: NVIDIA Corporation MCP61 USB 1.1 Controller (rev
a2) (prog-if 10 [OHCI])
Subsystem: ASUSTeK Computer Inc. Device 8234
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0 (750ns min, 250ns max)
Interrupt: pin A routed to IRQ 23
Region 0: Memory at fe02f000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: ohci_hcd
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