linux-kernel - Re: [PATCH V3 1/7] DRIVERS: IRQCHIP: IRQ-GIC: Add support for routable irqs

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Message-ID: <528399B2.8010308@ti.com>
Date:	Wed, 13 Nov 2013 10:24:34 -0500
From:	Santosh Shilimkar <santosh.shilimkar@...com>
To:	Sricharan R <r.sricharan@...com>
CC:	<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-doc@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-omap@...r.kernel.org>, <linus.walleij@...aro.org>,
	<linux@....linux.org.uk>, <tony@...mide.com>, <rnayak@...com>,
	<marc.zyngier@....com>, <grant.likely@...aro.org>,
	<mark.rutland@....com>, <robherring2@...il.com>,
	<tglx@...utronix.de>, <galak@...eaurora.org>,
	Rob Herring <rob.herring@...xeda.com>
Subject: Re: [PATCH V3 1/7] DRIVERS: IRQCHIP: IRQ-GIC: Add support for routable
 irqs

On Tuesday 05 November 2013 08:14 AM, Sricharan R wrote:
> In some socs the gic can be preceded by a crossbar IP which
> routes the peripheral interrupts to the gic inputs. The peripheral
> interrupts are associated with a fixed crossbar input line and the
> crossbar routes that to one of the free gic input line.
> 
> The DT entries for peripherals provides the fixed crossbar input line
> as its interrupt number and the mapping code should associate this with
> a free gic input line. This patch adds the support inside the gic irqchip
> to handle such routable irqs. The routable irqs are registered in a linear
> domain. The registered routable domain's callback should be implemented
> to get a free irq and to configure the IP to route it.
> 
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Linus Walleij <linus.walleij@...aro.org>
> Cc: Santosh Shilimkar <santosh.shilimkar@...com>
> Cc: Russell King <linux@....linux.org.uk>
> Cc: Tony Lindgren <tony@...mide.com>
> Cc: Rajendra Nayak <rnayak@...com>
> Cc: Marc Zyngier <marc.zyngier@....com>
> Cc: Grant Likely <grant.likely@...aro.org>
> Cc: Rob Herring <rob.herring@...xeda.com>
> Signed-off-by: Sricharan R <r.sricharan@...com>
> ---
Acked-by: Santosh Shilimkar <santosh.shilimkar@...com>
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