linux-kernel - Re: early init dt for earlyprintk (was Re: [RFC PATCH v1 25/31] ARC: [plat-arcfpga] Hooking up platform to ARC UART)

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Date:	Mon, 14 Jan 2013 09:48:49 +0000
From:	James Hogan <james.hogan@...tec.com>
To:	Vineet Gupta <Vineet.Gupta1@...opsys.com>
CC:	Arnd Bergmann <arnd@...db.de>,
	Grant Likely <grant.likely@...retlab.ca>,
	<linux-arch@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<tglx@...utronix.de>, Paul Mundt <lethal@...ux-sh.org>
Subject: Re: early init dt for earlyprintk (was Re: [RFC PATCH v1 25/31] ARC:
 [plat-arcfpga] Hooking up platform to ARC UART)

Hi Vineet

On 14/01/13 07:35, Vineet Gupta wrote:
> 2. We really need a Documentation/dt-for-new-linux-arches.txt, as the existing
> refs - while very helpful - fail to mention subtleties such as you absolutely need
> a intc instance and a default irq domain ..... before the driver can start using
> the DT.

Sounds like a good idea. I'm curious about what you say about default
IRQ domains though. Do you mean irq_set_default_host? In what way is
that required to use DT?

Cheers
James

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