linux-kernel - Re: [RFC v1 1/5] irqchip: add Armada 1500 APB interrupt controller

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Date:	Sat, 17 Aug 2013 15:24:28 +0200
From:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
To:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
CC:	Russell King <linux@....linux.org.uk>,
	Jason Cooper <jason@...edaemon.net>,
	Andrew Lunn <andrew@...n.ch>,
	Gregory Clement <gregory.clement@...e-electrons.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Arnd Bergmann <arnd@...db.de>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC v1 1/5] irqchip: add Armada 1500 APB interrupt controller

On 08/16/2013 09:41 PM, Sebastian Hesselbarth wrote:
> This adds irqchip drivers for the secondary interrupt controllers found
> on Armada 1500 APB and SYSMGT APB bus.
>
> I tried to find a compatible irqchip driver within v3.11-rc5, but there
> is no. I guess that it is a common IP core to buy for your SoC, so maybe
> one of the maintainers knows a better name for it. Could be DesignWare
> type-of as timers are DW, too.

 From a quick look into Synopsys DW ip library, it probably matches 
dw_apb_ictl best and should be named accordingly. Next round will
name the source dw_apb_ictl.c and corresponding compatible
"snps,dw-apb-ictl".

In addition, it looks like the ip can support up to 64 irqs. For orion
irq, I have used a "mavell,#interrupts" to allow to pass the number of
supported irqs. Above driver should also exploit a similar
snps-prefixed property.

Sebastian
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