linux-kernel - RE: [PATCH 2.6.37] irq: irq and pci_ids patch for Intel DH89xxCC DeviceIDs

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Date:	Mon, 10 Jan 2011 11:19:15 -0800
From:	"Heasley, Seth" <seth.heasley@...el.com>
To:	Jean Delvare <khali@...ux-fr.org>
CC:	"jbarnes@...tuousgeek.org" <jbarnes@...tuousgeek.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>
Subject: RE: [PATCH 2.6.37] irq: irq and pci_ids patch for Intel DH89xxCC
 DeviceIDs

>> --- linux-2.6.37/arch/x86/pci/irq.c.orig	2011-01-04
>16:50:19.000000000 -0800
>> +++ linux-2.6.37/arch/x86/pci/irq.c	2011-01-06 14:16:00.000000000
>-0800
>> @@ -611,6 +611,15 @@
>>  		r->set = pirq_piix_set;
>>  		return 1;
>>  	}
>> +
>> +	if ((device >= PCI_DEVICE_ID_INTEL_DH89XXCC_LPC_MIN) &&
>> +		(device <= PCI_DEVICE_ID_INTEL_DH89XXCC_LPC_MAX)) {
>> +		r->name = "PIIX/ICH";
>> +		r->get = pirq_piix_get;
>> +		r->set = pirq_piix_set;
>> +		return 1;
>> +	}
>> +
>
>I'm curious why we have separate sections for INTEL_5_3400_SERIES,
>INTEL_COUGARPOINT and now INTEL_DH89XXCC? We do the same thing for all
>3, so it would make sense to merge the tests to avoid duplicating the
>code.

Some products are defining a range of DeviceIDs rather than one or two specific IDs, so these blocks are for catching any DeviceID in the range.  I'm certainly open to suggestion for a better way to handle these, and I agree that the current way is awkward.

-Seth  
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