From mboxrd@z Thu Jan  1 00:00:00 1970
From: Arnd Bergmann <arnd@arndb.de>
Subject: Re: [PATCH 10/11] irqchip: bcm7120-l2: Extend driver to support 64+ bit controllers
Date: Thu, 30 Oct 2014 10:10:03 +0100
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To: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>, Thomas Gleixner <tglx@linutronix.de>, Jason Cooper <jason@lakedaemon.net>, Ralf Baechle <ralf@linux-mips.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>, Maxime Bizon <mbizon@freebox.fr>, Jonas Gorski <jogo@openwrt.org>, Linux MIPS Mailing List <linux-mips@linux-mips.org>
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On Wednesday 29 October 2014 16:22:31 Kevin Cernekee wrote:
> 
> This uses one domain per bcm7120-l2 DT node.  If the DT node defines
> multiple enable/status pairs (i.e. >=64 IRQs) then the driver will
> create a single IRQ domain with 2+ generic chips.
> 
> Multiple generic chips are required because the generic-chip code can
> only handle one enable/status register pair per instance.
> 

Makes sense. Just make sure you have that explanation in the patch
description.

	Arnd