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

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Date:	Thu, 17 Jul 2014 09:39:51 -0400
From:	Jason Cooper <jason@...edaemon.net>
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>,
	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, Jul 10, 2014 at 08:25:38PM +0200, Boris BREZILLON 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 series only fix RTC irqs, but other HW blocks (RTT, PMC, ...) will
> be added later on.
> 
> This series depends on this one [1].
> 
> Best Regards,
> 
> Boris
> 
> [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-July/271413.html
> 
> Boris BREZILLON (3):
>   irqchip: atmel-aic: Add irq fixup infrastructure
>   irqchip: atmel-aic: Implement RTC irq fixup
>   irqchip: atmel-aic: Define irq fixups for atmel SoCs
> 
>  drivers/irqchip/irq-atmel-aic-common.c | 47 ++++++++++++++++++++++++++++++++++
>  drivers/irqchip/irq-atmel-aic-common.h |  4 +++
>  drivers/irqchip/irq-atmel-aic.c        | 15 +++++++++++
>  drivers/irqchip/irq-atmel-aic5.c       | 12 +++++++++
>  4 files changed, 78 insertions(+)

Whole series applied on top of irqchip/atmel-aic.

thx,

Jason.
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