linux-kernel - Re: [PATCH] x86/dt: use linear irq domain for ioapic(s).

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Message-ID: <20120811172638.GA9440@kibibi>
Date:	Sat, 11 Aug 2012 19:26:38 +0200
From:	Sebastian Andrzej Siewior <sebastian@...akpoint.cc>
To:	Thierry Reding <thierry.reding@...onic-design.de>
Cc:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Grant Likely <grant.likely@...retlab.ca>, x86@...nel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86/dt: use linear irq domain for ioapic(s).

* Thierry Reding | 2012-08-08 14:07:37 [+0200]:

>With that in place, the driver code can match on "intel,hpet" to catch
>all implementations and use the more specific entries if quirks are
>required for the specific hardware.

from http://lkml.org/lkml/2011/2/16/350:

|"intel,ioapic" is probably too generic and can be dropped.  Newer
|devices can claim compatibility with "intel,ioapic-ce4100" if they are
|indeed compatible so that device drivers don't need to be modified.
|It is better to anchor compatible values to real implementations that
|try to come up with 'generic' or wildcard strings.  Ditto through the
|rest of the file.

>Thierry

Sebastian
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