From: Colin Leroy <colin@colino•net>
To: Paul Mackerras <paulus@samba•org>
Cc: linuxppc-dev@ozlabs•org, linux-usb-devel@lists•sourceforge.net
Subject: Re: [PATCH] Make sleep/wakeup work with USB on powerbooks
Date: Thu, 17 Mar 2005 07:51:57 +0100 [thread overview]
Message-ID: <20050317075157.19aa4df0@jack.colino.net> (raw)
In-Reply-To: <16953.5968.397116.341920@cargo.ozlabs.ibm.com>
On 17 Mar 2005 at 16h03, Paul Mackerras wrote:
Hi,
> I am currently using this patch on my powerbook to fix the problems
> that USB was causing with sleep and wakeup. Basically one of the USB
> controllers was getting a spurious wakeup immediately when put it
> into the suspend state. This would cause the resume routine to be run
> after we had turned off the device, causing a machine check.
>
> Also we had some races where we would turn off the clock to the apple
> OHCI cell(s) and then try to access them. With this patch, sleep and
> wakeup are quite reliable. The patch is against 2.6.11.
Would it be the "proper" patch I was looking for in the thread named
"[PATCH] Re-power USB ports on wakeup" ?
Or does it fix different issues ? Mine fixed, with a hack I think, the
fact that USB ports kept being powered down after one wakeup out of
two. I never got any machine check, however.
Thanks,
--
Colin
next prev parent reply other threads:[~2005-03-17 7:12 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-17 5:36 [PATCH] Make sleep/wakeup work with USB on powerbooks Paul Mackerras
2005-03-17 6:51 ` Colin Leroy [this message]
2005-03-17 7:35 ` Benjamin Herrenschmidt
2005-03-17 14:20 ` Colin Leroy
2005-03-17 18:47 ` [linux-usb-devel] " Alan Stern
2005-03-17 18:58 ` David Brownell
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