linux-kernel - Re: [PATCH 0/3] irqchip: atmel-aic: Add irq RTC fixups

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Date:	Thu, 10 Jul 2014 20:36:41 +0200
From:	Boris BREZILLON <boris.brezillon@...e-electrons.com>
To:	Boris BREZILLON <boris.brezillon@...e-electrons.com>
Cc:	Nicolas Ferre <nicolas.ferre@...el.com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Andrew Victor <linux@...im.org.za>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] irqchip: atmel-aic: Add irq RTC fixups

On Thu, 10 Jul 2014 20:32:49 +0200
Boris BREZILLON <boris.brezillon@...e-electrons.com> wrote:

> On Thu, 10 Jul 2014 20:25:38 +0200
> Boris BREZILLON <boris.brezillon@...e-electrons.com> wrote:
> 
> > Hello,
> > 
> > This patch series introduce the notion of irq fixups for atmel SoCs.
> > 
> > In most at91 SoCs the first interrupt line is shared by several IPs, and
> > some of these HW blocks might be in an unknown state when booting the
> > Linux kernel.
> > Hence these IPs might generate spurious interrupts if they've not masked
> > their irqs and the shared irq line is requested by another peripheral.
> > 
> > These fixups were previously done in arch/arm/mach-at91/sysirq_mask.c
> > but as we're trying to use standard implementation (IRQCHIP_DECLARE and
> > automatic call of irqchip_init within arch/arm/kernel/irq.c) we need to
> > do those fixups in the irqchip driver.
> 
> This is what I was talking about:
> 
> http://lists.infradead.org/pipermail/linux-arm-kernel/2014-July/271425.htm
> 
> 

Oops, sorry this is not the appropriate thread: I meant to send this
reply to this series:

http://lists.infradead.org/pipermail/linux-arm-kernel/2014-July/271413.html



-- 
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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