Bug#677472: [3.1->3.2 regression] Immediate wake on suspend, associated with OHCI on MCP51

[Lan Tianyu <tianyu.lan@intel.com>]

On 2012年12月13日 23:47, Alan Stern wrote:
> On Thu, 13 Dec 2012, Frank Schäfer wrote:
> 
>>> I write a quirk patch. Can you test?
>>
>> Yes, that makes it work !
>>
>>> I just find one MCP51 and two MCP79 OHCI id. Can you provide more buggy
>>> hcd id via "lspci -nnvvv"?
>>> Thanks.
>>
>> I have the MCP61 (rev. A2) with id 10de:03f1.
>>
>> Further NVIDIA OHCI HCD IDs can be found at
>> http://openbenchmarking.org/linux/PCI/0c03.
>> But I'm not sure that we should blacklist them all. Maybe this bug has
>> been fixed in newer chipset revisions / generations ?
>> Where did you get the ID for the MCP79 from ? Is it confirmed that this
>> device still suffers from the same bug ?
>>
>> I also wonder if this could be an BIOS / ACPI issue.
>> So far, all boards I've seen were form ASUSTeK (Octavio: A8N-VM, me:
>> M2N-VM DH, and I remember having seen the same bug on another M2N board
>> with MCP55 a while ago).
> 
> It would be great if we could get in touch with an engineer at ASUS or
> nVidia who knows the cause of this problem and how to work around it.  
> Tianyu, do you think this would be possible?
Hi Alan:
	I think this is very hard because these board is old and nVidia doesn't
produce chipset now. Otherwise, I have no such channel to communicate
with ASUS or nVidia engineer. :(

> 
> Alan Stern
> 


-- 
Best regards
Tianyu Lan