linux-kernel - Re: [PATCH] irqchip: Renesas IRQC driver

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Message-ID: <20130301094125.GA27938@verge.net.au>
Date:	Fri, 1 Mar 2013 18:41:30 +0900
From:	Simon Horman <horms@...ge.net.au>
To:	Magnus Damm <magnus.damm@...il.com>
Cc:	linux-kernel@...r.kernel.org, linux-sh@...r.kernel.org,
	benh@...nel.crashing.org, grant.likely@...retlab.ca,
	tglx@...utronix.de
Subject: Re: [PATCH] irqchip: Renesas IRQC driver

On Wed, Feb 27, 2013 at 05:15:01PM +0900, Magnus Damm wrote:
> From: Magnus Damm <damm@...nsource.se>
> 
> This patch adds a driver for external IRQ pins connected
> to the IRQC hardware block on recent SoCs from Renesas.
> 
> The IRQC hardware block is used together with more
> recent ARM based SoCs using the GIC. As usual the GIC
> requires external IRQ trigger setup somewhere else
> which in this particular case happens to be IRQC.
> 
> This driver implements the glue code needed to configure
> IRQ trigger and also handle mask/unmask and demux of
> external IRQ pins hooked up from the IRQC to the GIC.
> 
> Tested on r8a73a4 but is designed to work with a wide
> range of SoCs. The driver requires one GIC SPI per
> external IRQ pin to operate.  Each driver instance
> will handle up to 32 external IRQ pins.
> 
> The SoCs using this driver are currently mainly used
> together with regular platform devices so this driver
> allows configuration via platform data to support things
> like static interrupt base address. DT support will
> be added incrementally in the not so distant future.

Hi Magnus, Hi all,

I do not expect this code to go through the renesas tree.  However, in
order to provide a basis for work on renesas SoCs I have added this patch
to the topic/intc-external-irq topic branch in the reneas tree on
kernel.org and merged it into topic/all+next.

In other words, I am not picking this series up to merge it or add it to
linux-next, rather I am storing it for reference.

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