linux-kernel - Re: [PATCH 1/1] ACPI: pci_irq, add PRT

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Message-ID: <4C861BB9.2000707@gmail.com>
Date:	Tue, 07 Sep 2010 13:02:17 +0200
From:	Jiri Slaby <jirislaby@...il.com>
To:	unlisted-recipients:; (no To-header on input)
CC:	Robert Hancock <hancockrwd@...il.com>,
	Matthew Garrett <mjg59@...f.ucam.org>, lenb@...nel.org,
	linux-pci@...r.kernel.org, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Jesse Barnes <jbarnes@...tuousgeek.org>
Subject: Re: [PATCH 1/1] ACPI: pci_irq, add PRT_ quirk for IBM Bartolo

On 08/30/2010 09:36 AM, Jiri Slaby wrote:
> On 08/25/2010 01:25 AM, Robert Hancock wrote:
>> On Tue, Aug 24, 2010 at 2:11 AM, Jiri Slaby <jirislaby@...il.com> wrote:
>>> So, to sum up:
>>> 1) acpi routing enabled (no kernel parameter) => ports 4+5 defunct.
>>> ports 4+5+6+7 are all on irq 11
>>>
>>> 2) acpi routing disabled (acpi=noirq) => all ports working, 4+5 on irq
>>> 10, 6+7 on irq 11
>>>
>>> 3) with the quirk [1] and acpi routing enabled => all ports working,
>>> ports 4+5 on irq 10, 6+7 on irq 11
>>>
>>> 4) in windows => 4+5+6+7 are all on irq 9 and the ports are all working.
>>>
>>> Any ideas what this means? Especially point 4)?
>>>
>>> [1] http://lkml.org/lkml/2010/6/27/85
>>
>> I think that's the key question. Is Windows actually using ACPI on
>> that machine at all? (Check the computer type in Device Manager and
>> see if it mentions ACPI.)
> 
> Yes, there is Computer->ACPI PC.

Any ideas here, please? Is there anything what I might try?

thanks,
-- 
js
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