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From: Stefan Richter <stefanr@s5r6.in-berlin.de>
To: Subodh Shrivastava <subodh.shrivastava@gmail.com>,
	linux1394-devel@lists.sourceforge.net
Cc: linux-kernel@vger.kernel.org, bcollins@debian.org, scjody@modernduck.com
Subject: Re: ieee1394 failed to work after S3 resume.
Date: Mon, 20 Feb 2006 16:58:04 +0100	[thread overview]
Message-ID: <43F9E70C.5030809@s5r6.in-berlin.de> (raw)
In-Reply-To: <8b12046a0602191137n12997938kd8404814f7c8e2ba@mail.gmail.com>

Subodh Shrivastava wrote:
> Suspend to Ram works fine here with 2.6.16-rc3 kernel except ieee1394
> fails to resume properly.
...
[SCSI command timeout in sbp2 after resume; no nodemgr updates after resume]
...

AFAICT the reason is that the host adapter drivers (1394 low-level 
drivers) ohci1394 and pcilynx lack proper .suspend and .resume hooks. 
Such functionality seems only be present for Powermacs with Uninorth 
chipset.

OHCI 1.1 table A-11 says (surprise!) that host adapters loose PCI 
configuration and 1394 configuration when going into D3 state. We don't 
backup and restore it yet. I could perhaps look into it in late spring 
or summer.
-- 
Stefan Richter
-=====-=-==- --=- =-=--
http://arcgraph.de/sr/

  reply	other threads:[~2006-02-20 15:59 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-02-19 19:37 Subodh Shrivastava
2006-02-20 15:58 ` Stefan Richter [this message]
2006-02-20 17:00   ` Matthias Bläsing
2006-02-20 21:18     ` Stefan Richter

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