From: Eric Valette <eric.valette@free.fr>
To: "Li, Shaohua" <shaohua.li@intel.com>
Cc: Karol Kozimor <sziwan@hell.org.pl>,
"Brown, Len" <len.brown@intel.com>,
"Wang, Zhenyu Z" <zhenyu.z.wang@intel.com>,
Andrew Morton <akpm@osdl.org>, Greg KH <greg@kroah.com>,
linux@brodo.de,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: 2.6.8.1-mm1 and Asus L3C : problematic change found, can be reverted. Real fix still missing
Date: Thu, 19 Aug 2004 10:05:45 +0200 [thread overview]
Message-ID: <41245F59.4080608@free.fr> (raw)
In-Reply-To: <B44D37711ED29844BEA67908EAF36F039A1877@pdsmsx401.ccr.corp.intel.com>
Li, Shaohua wrote:
> Eric,
> The patch for bug 3049 has been in 2.6.8.1 and should fix the IO port
> problem. If the Asus quirk is just because of IO port problem, I'd like
> to remove it. Note PNP driver also reserves the IO port for the SMBus
> and lets SMBus driver to use it. ACPI motherboard driver behaves the
> same as PNP driver.
Unfortunately, as I understand it, the fix is done to "unhide" the SMBus
that otherwyse is not seen but it has unexpected side effect of messing
ioports allocation/reservation. I guess lspci with and without the fix
could help to understand the problem. Here is the comment on top of the
function :
/*
* On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
* is not activated. The myth is that Asus said that they do not want the
* users to be irritated by just another PCI Device in the Win98 device
* manager. (see the file prog/hotplug/README.p4b in the lm_sensors
* package 2.7.0 for details)
*
* The SMBus PCI Device can be activated by setting a bit in the ICH LPC
* bridge. Unfortunately, this device has no subvendor/subdevice ID. So it
* becomes necessary to do this tweak in two steps -- I've chosen the Host
* bridge as trigger.
*/
BTW, maybe we should change the comment because it is on many ASUS
boards if not all ...
-- eric
next prev parent reply other threads:[~2004-08-19 8:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-19 7:50 2.6.8.1-mm1 and Asus L3C : problematic change found, can be reverted. Real fix still missing Li, Shaohua
2004-08-19 8:05 ` Eric Valette [this message]
2004-08-19 11:09 ` Eric Valette
2004-08-29 13:04 ` Dominik Brodowski
2004-08-29 13:50 ` Eric Valette
-- strict thread matches above, loose matches on Subject: below --
2004-08-10 9:08 2.6.8-rc4-mm1 : radeon_monitor.c broken vs CONFIG_FB_MODE_HELPERS + Hard freeze Eric Valette
2004-08-10 10:35 ` 2.6.8-rc4-mm1 : Hard freeze due to ACPI Eric Valette
2004-08-10 16:07 ` Andrew Morton
[not found] ` <4123AC79.5000709@free.fr>
2004-08-19 0:00 ` 2.6.8.1-mm1 and Asus L3C : problematic change found, can be reverted. Real fix still missing Karol Kozimor
2004-08-19 7:16 ` Eric Valette
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