Re: [PATCH] Fixup ahci suspend / resume

From: Hannes Reinecke
Date: Tue Feb 28 2006 - 09:56:51 EST


Mark Lord wrote:
> Hannes Reinecke wrote:
>> Hi all,
>>
[ .. ]
>> This patch rearranges the suspend / resume code to properly initialise
>> those registers after a resume. It also contains some initialisation
>> fixes to make the driver behave more spec-compliant.
> ..
>
> Is ahci the *only* interface afflicted with this problem?
Good question.

Can't tell. So far this is ahci specific as the ahci requires the DMA
addresses to be written in some register. One would have to look up the
individual specs to check whether this is also true for other drivers.

AFAICS the SATA spec doesn't require you to implement it this way, though.

Cheers,

Hannes
--
Dr. Hannes Reinecke hare@xxxxxxx
SuSE Linux Products GmbH S390 & zSeries
Maxfeldstraße 5 +49 911 74053 688
90409 Nürnberg http://www.suse.de

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