From mboxrd@z Thu Jan  1 00:00:00 1970
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: [PATCH] pata_of_platform: fix no irq handling
Date: Tue, 12 Aug 2008 08:00:32 +1000
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	Sam" <SSparks@aclaratech.com>, linux-ide@vger.kernel.org
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> 1. IDE status read does not work. (But am I understand correctly
>    that IDE works well if IRQ is unspecified? Then this is hardly
>    an issue.)
> 2. IDE interrupt comes when it should not. I'd recommend to use
>    oscilloscope to find out what is happening there, that is, if
>    the drive actually deasserts its irq line after status read.
>    If so, than this could be a PIC problem.
> 
> What is the platform on which you're observing the issue, btw?

Another possibility is that you got the wrong interrupt number
in the device-tree...

Ben.