linux-kernel - Re: [PATCH] ata: Fix DVD not dectected at some Haswell platforms

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Message-ID: <20130201153815.GB2186@linux-youquan.bj.intel.com>
Date:	Fri, 1 Feb 2013 10:38:15 -0500
From:	Youquan Song <youquan.song@...ux.intel.com>
To:	Sergei Shtylyov <sshtylyov@...sta.com>
Cc:	Youquan Song <youquan.song@...el.com>, htejun@...il.com,
	ming.lei@...onical.com, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org, seth.heasley@...el.com,
	jlee@...e.com, james.d.ralston@...el.com,
	Youquan Song <youquan.song@...ux.intel.com>
Subject: Re: [PATCH] ata: Fix DVD not dectected at some Haswell platforms

>> +	{ 0x8086, 0x8c08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata_snb },
>>   	/* SATA Controller IDE (Lynx Point) */
>>   	{ 0x8086, 0x8c09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
>
>    Also, are you sure this one and the following Lynx Point controllers are 
> not affected?

I am not sure. the 0x8c09 is possibly used on mobile PC not desktop. On
one of my machine, it includes the chipset but the 2 ports IDE controller is
not extend out for use. There are only 2 ports extended out from 4 ports
IDE controller.  So I can not verify it. I think, the notebook/mobile PC does
 not require to extends out all of the IDE ports. 

This patch only fixs the 0x8c08 2 ports IDE controller for it block the
installation. If there is an issue reporting from 0x8c09, we can fix it
late.

Thanks
-Youuquan

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