lkml.org 
[lkml]   [2014]   [Jul]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 0/3] irqchip: atmel-aic: Add irq RTC fixups
On Thu, 10 Jul 2014 20:25:38 +0200
Boris BREZILLON <boris.brezillon@free-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


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


\
 
 \ /
  Last update: 2014-07-10 21:21    [W:0.050 / U:4.328 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site