linux-kernel - Re: ACPI vs Device Tree

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Message-ID: <20130824030628.GA3668@srcf.ucam.org>
Date:	Sat, 24 Aug 2013 04:06:28 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	Darren Hart <dvhart@...ux.intel.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linus Walleij <linus.walleij@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: ACPI vs Device Tree - moving forward

On Fri, Aug 23, 2013 at 07:55:31PM -0700, Guenter Roeck wrote:

> Question is: Does this work _today_ with any existing driver, where
> one interrupt is served through ACPI and another as 'standard' Linux
> interrupt ? If yes, it must be working, and using fdt to describe
> the interrupt mapping for the non-ACPI interrupt should not make
> a difference. If no, the problem does not really have anything
> to do with fdt.

There's no such thing as an ACPI interrupt, it's just a data source in 
the same way that PnP used to be. _CRS refers to platform interrupts.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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