linux-kernel - Re: [PATCH 10/11] irqchip: bcm7120-l2: Extend driver to support 64+ bit controllers

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Message-ID: <1819614.RKinL4RR5c@wuerfel>
Date:	Thu, 30 Oct 2014 10:10:03 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Kevin Cernekee <cernekee@...il.com>
Cc:	Florian Fainelli <f.fainelli@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>,
	Ralf Baechle <ralf@...ux-mips.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Maxime Bizon <mbizon@...ebox.fr>,
	Jonas Gorski <jogo@...nwrt.org>,
	Linux MIPS Mailing List <linux-mips@...ux-mips.org>
Subject: Re: [PATCH 10/11] irqchip: bcm7120-l2: Extend driver to support 64+ bit controllers

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
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