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SubjectRe: Regression 3.2 -> 3.3-rc1 10 sec hang at boot and resume, COMRESET failed
On 02/16/2012 09:20 AM, Mark Lord wrote:
> On 12-02-15 01:31 PM, Tejun Heo wrote:
>> Hey, Jeff.
>>
>> On Wed, Feb 15, 2012 at 01:29:29PM -0500, Jeff Garzik wrote:
>>> A module parameter is not necessarily the best/only option.
>>> ahci_platform already has infrastructure set up to deal with
>>> platform-specific quirks. An internal flag seems more appropriate
>>> to enable automatic handling of this on the specific platforms where
>>> it applies (plus the revert Tejun has already mentioned).
>>
>> The problem is that there's no way to identify the controller in
>> question, so we can't do this automatically, so might just as well do
>> it in the simplest way for now. :(
>
> Well, a module parameter is no good,
> because that method would affect all attached controllers
> rather than just the one(s) with the issue.
>
> Something in sysfs perhaps.

See the method already described in my previous message.
grep for IMX53_AHCI.

Jeff



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